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Operations and Service Manual

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1. Crown Assembly Condition Sheaves Warped OK Grooves Worn OK Spacers or Seals Bad OK Grease Fitting Missing OK Crown Frame Bent Flanges Bent Webs OK Cracked Welds OK Comments Rusty Needs Repair Needs Painting Other Vertical Members A Rear Leg Off Drillers Side Condition Bow Slight Bad OK Pin Connection Bad OK Pin Hole Bad Cracked Welds OK Safety Pins Missing OK B Rear Leg Drillers Side Condition Bow Slight Bad OK Pin Connection Bad OK Pin Hole Bad Cracked Welds OK Safety Pins Missing OK Comments Needs Repair Other Bracing Condition Slight Damage Badly Damaged Needs Repair OK Adjustable Support Legs and Feet Condition Damaged Cracked Welds Corroded Worn Pins Hole Needs Repair Working Platform Condition Racking Platform Frame Damaged Cracked Welds OK Pin Connections Worn OK Safety Pins Missing Worn OK Fingers Damaged Needs Repair OK Working Platform Damaged Cracked Welds OK Handrails Damaged Needs Repair OK 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations gt 6 Guyline Anchorage Condition Guyline Damaged Needs Adjusting Needs Replacing OK Cable Clamps Loose Needs Repairing OK Turnbuckles Damaged Needs Rep
2. Displacement 3 9 L 239 cubic inch Net Power intermittent 98 kW 131 hp Max Rated RPM 2450 rpm HYDRAULIC SYSTEM Primary Pump Axial piston variable displacement pressure compensated with low pressure standby Max Flow 163 Lpm 43 gpm Maximum Pressure 24 1 MPa 3500 psi As used on LF 70 Boart Longyear Inc is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 2006 Boart Longyear Inc TECH DATA No 8 TECHDATA MKT1617 Date January 2007 Page 2 of 10 LF70 Diamond Core Drill System METRIC SYSTEM U S CUSTOMARY SYSTEM Secondary Pump Axial piston variable displacement pressure compensated Max Flow 41 6 Lom 11 gpm Maximum Pressure 13 8 MPa 2000 psi As used on LF 70 Auxiliary Pump Axial piston hydrostatic drive with manual swash plate control Max Flow 38 Lpm 10 gpm Maximum Pressure 14 MPa 2000 psi As used on LF 70 DRILL HEAD STANDARD HQ Hollow Spindle Maximum Rod Diameter 95 2 mm 3 75 in Rotation Motor Rexroth hydraulic motor variable reversible Mechanical Transmission Funk 4 speed Ratios st 6 63 1 2nd 3 17 1 3rd 1 72 1 4th 1 00 1 Final Drive Roller chain drive Ratio 2 58 1 Hydraulic HQ Chuck Patented Nitro Chuck hydraulically opened nitrogen gas spring closed Axial holding capacity of 133447 N 30000 Ibf
3. 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 79 NOTE Ensure head is exactly Refill head box to the correct level with hydraulic oil total 7 quarts U S 6 6 L level and vertical when verifying oil Refer to page 7 11 for a list of lubricants With head assembly in the vertical levels position and no spindle rotation the maximum or full level will be at the lower end of the 3 oil level gauge located on operator s side of the head CAUTION po not box overfill To do so will result in overheating Oil Level Gauge Max Full Level gt gt Temperature gauge is measured in degrees Fahrenheit F Conversion to degrees Celsius C F x 0 556 C NOTE Actual equipment may not be exactly as shown 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 7 10 Auxiliary Pump Output Field Maintenance Check and Adjustment Output of the Auxiliary pump is determined by manually altering the Swash Plate angle of the unit by a throttle cable This is installed and adjusted at the factory For field adjustment refer to drawing below Adjust so th
4. TORQUE AND RPM RATINGS Rpm Nm Torque Ibft Hydraulic motor at maximum minimum displacement prime mover at 2200 rpm 1st Gear 95 190 4610 2305 3400 1700 2nd Gear 200 400 2170 1085 1600 800 3rd Gear 370 730 950 610 700 450 4th Gear 630 1250 680 340 500 250 Drill Head Lubrication Pressure lubrication for bearings oil bath for roller chain Drill Head Lubricating Oil Filtration 10 Micron spin on type oil filter Boart Longyear Inc is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 2006 Boart Longyear Inc TECH DATA No 8 TECHDATA MKT1617 Date January 2007 Page 3 of 10 LF70 Diamond Core Drill System METRIC SYSTEM U S CUSTOMARY SYSTEM DRILL HEAD OPTIONAL PQ Hollow Spindle Maximum Rod Diameter 122 2 mm 4 81 in Rotation Motor Rexroth hydraulic motor variable reversible Mechanical Transmission Funk 4 speed Ratios st 6 27 1 2nd 3 12 1 3rd 1 75 1 4th 1 00 1 Final Drive Straight cut gears Ratio 2 1 Head Opener Pivoting style manual operation Hydraulic PQ Chuck Patented Nitro Chuck hydraulically opened nitrogen gas spring closed Axial holding capacity of 222400 N 50000 Ibf TORQUE AND RPM RATINGS Rpm Nm Torque Ibft Hydraulic motor at maximum minimum displacement prime mover at 2200 rpm
5. 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 120 22 Install retaining ring item 11 23 Install Labyrinth seal item 5 24 Install the 3 8 UNC x 1 1 4 long socket head cap screws item 33 and torque to 35 ft lbs 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 121 25 Install bowl item 25 onto spindle item 1 26 Install gas springs item 10 2 7 Install spring retainer item 6 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 122 28 Install 1 2 20 UNC x 2 long socket head cap screws item 35 and torque to 90 ft lbs 29 Install inner bushing supplied separately 30 Install jaws Supplied separately 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice
6. 8 Connect the two hoses to the ports as indicated Attach the other ends of the hoses to the motor of the mud mixer If the mud mixer operates opposite to what the decal indicates reverse the two hoses on the back of the valve bank Hose B Hose A a a a l 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation 5 22 NOTE Piping Group p n 9 Mud Mixer Maintenance 101762 includes all fittings hose l The mud mixer has two bearings which should be lubricated according valves hardware and decals to the lubrication chart Two bearings to lubricate s 3 a 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Auxiliary Mud Mixer Selector Valve NOTE If the Flow Control Valve is not installed as per instructions on page 6 09 meter out instead of meter in the shaft seal in the Mud Mixer Hydraulic Motor could be damaged NOTE This is the only flow control metering device used in the LF70 hydraulic system Because of the low flows involved efficiency of the system is not impacted to any degree by the use of sucha valve This is a detented four way two position valve which eithe
7. General Maintenance and Trouble Shooting 7 123 31 Install jaw retainer item 7 32 Install 1 2 20 UNC x 1 1 2 long socket head cap screws item 36 and torque to 80 ft lbs 33 Install upper bushing supplied separately 34 Install guide bushing retainer item 21 35 Install 1 2 20 UNC x 3 4 long socket head cap screws item 34 and torque to 35 ft lbs 36 Chuck assembly shown on shipping plate _ z k m sia T m F E a t r e re P are a 5 i T aam e be a o as m e Fa a 1 sy ae en LS Tii r n 37 For chuck disassembly follow the instructions in reverse order 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting Installation of New Jaws NOTE 1 Remove the top bushing The lower spindle bushing and 2 Remove jaws lower chuck bushing are NOT used 3 Remove the bottom bushing EE E EE 4 Clean jaw slots with diesel fuel or a solvent and lubricate with EP2 core barrel ASSEMOY the upper grease n alah aod 5 Reassemble using appropriate jaws and bushings removed and replaced after insetionsolhenvicecuinaswil 6 Remove lower spindle bushing and replace with appropriate bush infiltrate the area around the INQ mitogen gas springs Lubrication Do not open chuck while rotating
8. BOART GS LONGYEAR LF70 Operations and Service Manual area r ey N ewes MKT1576 A CAUTION CAUTION BOART LONGYEAR Important Safety Information 2 Hazard Signal Words Hazard signal words are used throughout this manual They appear in the narrow left hand column of numerous pages and with their additional text description are intended to alert the reader to the existance and relative degree of a hazard This is the safety alert symbol It is used to alert you to potential personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury and death DANGER indicates an imminently hazardous situation which if not avoided could result in death or serious injury WARNING indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury CAUTION used without the safety alert symbol indicates a potentially hazardous situation which if not avoided may result in property damage BOART R LONGYEAR Important Safety Information Read and understand all safety instructions carefully before operating this machine Failing to follow these instructions may result in serious personal injury or death Keep clear of rotating equipment Never wear any loose clothing which could become t
9. General Maintenance and Trouble Shooting Actual assembly may not be exactly as shown 37 Once free from the final drive driven sprocket the head box can be lifted clear of the spindle which is now resting on the work bench 38 The top bearing cone which is still attached to the spindle can now be removed by jacking the bearing with the appropriate bolts through the threaded holes on the chuck spindle adapter flange Ensure the final drive driven sprocket keys are removed from the spindle before attempting to carry out this operation 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting NOTE the oil gallery port location 39 Remove the eight bolts securing the top spindle bearing cap Remove which is sealed with an O ring the cap by threading the appropriate bolts through the four threaded when the top bearing cap housing jacking holes on the flange of the cap is removed Prior to reassembly ensure the internal galleries in the head box and the spindle bearing cap are clean and free from debris During reassembly use a new O ring to seal the mating surfaces of the oil galleries on the head box and spindle bearing cap Make sure the oil delivery port is oriented above the internal gallery NOTE Prior to reassembly it may b
10. ao 2 _ Ga t TUS p sy o NOTE Actual equipment may not be exactly as shown Deutz NOTE Actual equipment may not be exagdtly as shown 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations 4 7 NOTE Actual equipment may not be exactly as shown Cummins NOTE Actual equipment may not be exactly as shown 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice BOART LONGYEAR er gt 7 re Ole i ee Ad NOTE Actual equipment may not be exactly as shown A CAUTION If any of the above require attention be sure to thoroughly clean If the mast the area surrounding the filler locations before adding liquids Use has not been raised ensure the only clean uncontaminated containers for filling not ones that drill is properly supported by have been used to hold foreign fluids the four leveling jacks in a level i i o orientation Before raising the For more detailed diesel engine servicing requirements refer to mast ensure there are no the diesel engine operations and maintenance section of this overhead power lines trees or manual structures which could foul the
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12. 1st Gear 122 199 5322 3254 3925 2400 2nd Gear 246 400 2648 1620 1953 1195 3rd Gear 439 714 1486 908 1096 670 4th Gear 769 1250 849 519 626 383 Drill Head Lubrication Pressure lubrication for bearings oil bath for gears Drill Head Lubricating Oil Filtration 10 Micron spin on type oil filter DRILL MAST Lower Section Feed Stroke 1830 mm 72 in Length 3213 mm 126 5 in Middle Section Length 3284 mm 129 3 in Upper Section Length 2705 mm 106 5 in Boart Longyear Inc is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 2006 Boart Longyear Inc TECH DATA No 8 TECHDATA MKT1617 Date January 2007 Page 4 of 10 LF70 Diamond Core Drill System METRIC SYSTEM U S CUSTOMARY SYSTEM DRAW WORKS Main Line Hoist Braden Hook Load single part line Bare Drum 5450 kg 12000 Ibf Full Drum 3720 kg 8200 lbf Hoisting Speed single part line Bare Drum 59 m min 193 ft min Full Drum 80 m min 261 ft min Cable Capacity maximum 67 mof 14 3 mm cable 220 ft of 0 56 in cable NOTE Do not use multiple part lines with the 12000 Ib hoist use single part line ONLY Wireline Hoist Line Pull Bare Drum 990 kg 2190 Ibf Full Drum 277 kg 502 lbf Line Speed Bare Drum 100 m min 337 ft min Full Drum 443 m min 1470 ft min Cable Capacity swaged 1898 m of 4 8 mm cable 6200 ftof0 12 i
13. 3 4 Power Unit Module 3 5 Draw Works Sub Frame Module 3 6 Wireline Hoist Assembly 3 7 Lower Mast Section 3 8 Upper Mast Section 3 9 Middle Mast Section 3 10 Hydraulic Module 3 11 Control Panel Chapter 4 Drilling Operations 4 2 Introduction 4 4 Visual Inspection of Masts 4 6 Pre Start Check List 4 9 Anchoring the Drill 4 15 Start Up Procedures 4 17 Raising the Mast Mechanical Mast Raising Standard 4 22 Raising the Mast Hydraulic Mast Raising Option 4 25 Collaring the Hole 4 27 Inserting the Core Barrel 4 28 Rod Guides 4 28 Stacking Drill Rods 4 29 Force on Diamond Bit 4 30 BitWeight Table 4 31 Shut Down Procedures 4 32 Lowering the Mast Hydraulic Mast Raising Version Chapter 5 Hydraulic Explanation 5 3 Drive Source 5 4 Primary Circuit 5 7 Main Valve Bank 5 8 Rotation Circuit Table of Contents ec 5 9 Rotation Motor 5 10 Fast Feed Circuit 5 11 Main Line Hoist Cable Circuit 5 13 Wireline Hoist Circuit 5 14 Primary Circuit Return Oil 5 15 Secondary Circuit 5 19 Installation of Mud Mixer Piping Group 5 23 Auxiliary Mud Mixer Selector Valve 5 28 Hydraulic Schematic Chapter 6 Electrical 6 2 Electrical Schematic Chapter 7 General Maintenance and Trouble Shooting 7 2 Drive Head Chain Field Maintenance Check and Adjusting Procedures 7 6 Head Slide Wear Bars Field Maintenance Check and Adjustment 7 40 Auxiliary Pump Output Field Maintenance Check and Adjustment 7 414 Lubric
14. 8 Lubricate and install the O ring item 15 and the back up ring item The orientation and location should 16 on the PQ chuck spindle O D peor ONE TAG panera 9 Install the upper spindle wear sleeve item 31 on the PQ chuck spindle NOTE 10 Align dowel with the first hole to the right hand side of the O ring bussport The piston dowel must align of the outer cylinder item 4 with outer cylinder for proper assembly 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 116 11 Install the piston item 3 into the outer cylinder item 4 Gently tap piston down into place until piston is flush to the bottom of the outer cylinder NOTE 12 Install the inner cylinder item 2 into the outer cylinder assembly Be sure to align the two oil ports as item 11 from step 5 Tap into place using a soft face mallet Use shown two 3 8 UNC bolts of the proper length to align the parts 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 117 NOTE 13 Install the 3 8 UNC x 1 1 4 long socket head cap screws item 33 There are twelve bolts requ
15. 9 until a smooth idle rom is obtained If the engine fails to start the ignition switch must be returned to the off position before a restart can be attempted Follow the above procedures A WARNING Excessive when attempting to restart the engine cranking can damage the Investigate why the engine will not start i e fuel or electical electrical fuel solenoid or starter problems before cranking excessively motor 5 Check the diesel engine oil pressure gauge and ensure this rises to its operating level Minimum allowable oil pressure at idle is 10 psi 0 06 MPa Minimum allowable oil pressure at rated rom is 30 psi 12 MPa 6 Allow the diesel engine to warm up for two minutes before gradually increasing the rom If operating in extremely cold ambient conditions allow the engine at least seven minutes to warm up before increasing the rom or placing any load on the machine 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Raising the Mast Mechanical Mast Raising Standard 1 Prior to starting the machine ensure the drill is level and firmly supported by the four leveling jack legs ie not resting on the wheels if these are left on the base If there is any doubt that some weight may be on the tires remove them to ensure the four leveling jack legs are supporting the d
16. DATEMANUFACTURED YY MM DD MAX RATED STATIC HOOK LOAD FOR MAST VERTICAL SINGLE LINE a A WARNING Any of the following conditions will reduce the maximum rated static hook load acceleration and impact loads rod stack loads wind velocity or angle mast Consult operations and service manual for reduced rating 354129 B a a a l 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations Visual Inspection of Masts The following is a checklist for a visual inspection of the mast Ensure that the inspection is per formed by an individual with knowledge of all mast operational procedures during erection or reloca tion of mast Each section has a pass or fail choice If there is a problem it should be noted and corrected immediately Make copies of this checklist and file this check list for future reference
17. If it cannot move back and forth freely in the provided cutout it must be removed from the head box After the transmission has been removed remove the six bolts from the rear cover plate Now the cover plate can be removed To square the rear cover plate to the Funk transmission use two 3 8 x 1 bevel head cap screws Install one in each corner of the rear cover to square it up Clean the six original bolts of RTV sealant apply new sealant and reinstall removing the two bevel head cap screws Be sure that the two button head cap screws are located in their proper location closest to the spindle 32 34 General Maintenance and Trouble Shooting 7 32 Lower the Funk transmission and adapter housing onto the head box Item 32 Place four flat washers over the transmission mounting studs then add the four 1 2 UNF all steel locknuts Ensure the transmission assembly is as close as possible to the spindle on the housing slots then snug the locknuts down Item 33 Next lubricate the I D of the oil seal and O D of the wear sleeve with a lithium based grease Fit the oil seal into the top spindle bearing cap Ensure the wear sleeve is in place on the spindle The seal should be started evenly and tapped home with a soft hammer When correctly seated the seal is flush with the top of the spindle bearing cap 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must th
18. If converting a drill which was manufactured before September 1 1997 a new Crown Block c w 30 Sheave will be required for use with the new PQ head If drill is already equipped with this single sheave crown block then it will have to be moved outwards to match the 2 difference in offset of the PQ head centerline The crown block has an extra set of holes to accommodate this requirement 4 Replace or rework existing rod slides in upper and middle mast sections with new rod slides 5 Replace existing pivot rod centralizers in upper and middle mast sections with new centralizers 6 Replace existing support legs on base frame assembly with new support legs 7 Replace existing casing positioner base assembly with new base base mounting bar and new hardware provided with conversion A new adapier plate is also supplied which is used for adapting to the existing casing adapter collars and casing guide bushings lf drill was equipped with the rod clamp option it will be necessary to rotate the assembly 90 clockwise which will position the hose quick couplers downward or towards the drill frame This is done in order to provide necessary clearance for bottom of PQ head rotation motor 8 Replace existing rod guard drawing with new PQ rod guard 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price with
19. otherwise bearing life willbe greatly 1 Lubricate the chuck as per the lubrication schedule in chapter 9 reduced Maintenance 1 Inspect and clean jaws regularly Replace in sets of seven only when worn 2 For replacement parts refer to the chuck assembly drawing in your Parts Manual 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 125 Nitrogen Gas Springs A CAUTION Nitrogen gas springs are designed to have a long service life Inspect the gas springs periodically while changing jaws 3 month intervals We do not recommend field 1 Remove the spring retainer to access the gas springs for inspection re charge of the gas springs and replacement oe contani AERE 2 Measure the free length of the exposed piston rod above the barrel A If the gas spring is still charged with nitrogen the rod will be ex for more information 7 tended 1 25mm Replace any spring that does not meet this requirement 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 126 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products an
20. 54 59 56 57 58 99 Remove the two intermediate idler shaft cone bearings Remove the cone bearing spacer Drive the bearing race down and off of the intermediate gear with a punch Remove the bearing race spacer Drive the second bearing race off of the intermediate gear with a punch Lift out the input pinion and shaft from the main housing Place it input side down on the work bench 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 63 60 Remove the snap ring 62 Remove the pump adapter tang 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 1 64 63 Remove the pump adapter 64 Remove the two input pinion and shaft cone bearings using appropriate bearing pullers Eom g 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 765 PQ Head Reassembly Procedures NOTE Itisrecommendedthatthe 1 Place the main housing bottom end facing up on a solid work bench PQ Head be se
21. adaptor flange NOTE Use a suitable material 2 7 Place the spindle with the threaded section resting on the work bench under the threaded end of the and the bearing up spindle so as to protect the threads Coat the top end of the spindle with a thin film of oil 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 89 Install the output wear sleeve on top of the spindle Tap the output wear sleeve down the spindle chuck adaptor flange so that it is approximately 0 030 0 76 mm below the face of the chuck adaptor flange 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 28 Turn the spindle so that the chuck adaptor flange is resting on the work bench and the thread end is up Coat the machined diameter between the two threaded portions of the spindle with a light film of oil Place the first wear sleeve lip down over the first threaded portion of the spindle 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and pr
22. base remove the spacers and bolts from the cable retainers on the crown block assembly and remove the main line hoist and wireline hoist cables Next remove the middle and upper mast sections then tighten the four mast swivel mounting block bolts Mast Raising Cylinders Ns Outer Mast Support Legs 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice QBOART LONGYEAR NER Hydraulic Explanation 5 3 Drive Source 5 4 Primary Circuit 5 7 Main Valve Bank 5 8 Rotation Circuit 5 9 Rotation Motor 5 10 Fast Feed Circuit 5 11 Main Line Hoist Cable Circuit 5 13 Wireline Hoist Circuit 5 14 Primary Circuit Return Oil 5 15 Secondary Circuit Mast Raising Lowering Selector Valve Feed Selector Valve Fine Feed Flow Control Valve Feed Pressure Reducing Control Valve 5 19 Installation of Mud Mixer Piping Group 5 23 Auxiliary Mud Mixer Selector Valve Rod Clamp Selector Valve Rotation Speed Control Chuck Mode Selector Valve Auxiliary Circuit Case Drain Return Circuit 5 28 Hydraulic Schematic 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation 52 Three separate hydraulic circuits transmi
23. bit weight pressure gauge should never be allowed to fall below 200 psi 1 4 MPa If it drops below this value the signal to release the main line winch spring applied brake and to open the main line hoist motor pilot check valves will be lost This will result in the main line hoist drum once again becoming locked spring brake applied pilot check valves closed and the hoisting cable which is attached to the water swivel unable to feed out as the drill head advances down lf for example HQ drilling is being undertaken in extremely hard ground and bit weight pressures below 200 psi 1 4 MPa are required for adequate penetration rates the pump compensator should be reset to prevent the bit weight pressure gauge falling below 200 psi 1 4 MPa The use of softer matrix bits should be considered before adjusting the secondary pump pressure compensator lf it is necessary to reset the secondary pump compensator this should only be increased to a maximum of 2000 psi 13 8 MPa on the feed pressure gauge When drilling deep holes and operating the feed in a hold back situation ie keeping the rods in tension by not allowing the full weight of the drill string on to the diamond bit the secondary pump compensator setting should be readjusted to 1000 psi 6 9 MPa This will increase the sensitivity of the fine feed flow control valve The secondary pump compensator should never be adjusted below 1000 psi 6 9 MPa as this ma
24. chain at the service port should be 1 2 to 3 4 1 to 2 cm forward and backward This should be undertaken using hands only and not prying with a screwdriver or levers If necessary adjust the drive head chain tension with the adjusting set screw on the final drive pinion carrier plate as follows A Loosen the four 1 2 all steel locknuts on the final drive pinion carrier B Loosen the four 1 2 all steel locknuts which secure the Funk transmission C Adjust the drive head chain to the correct tension using the adjusting set screw on thefinal drive pinion carrier plate Once achieved lock the adjusting set screw in position with the locknut D Tighten the four final drive pinion carrier plate all steel locknuts prior to tightening the four Funk box all steel locknuts down E Once the four Funk box all steel locknuts are snug loosen the four final drive pinion carrier plate all steel locknuts then retighten them to 50 ft Ib 68 Nm F Ensure the correct drive head chain tension has been maintained then loosen and retighten the four Funk box all steel locknuts to 50 ft lb 68 Nm 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 41 56 Once the drive head chain has been correctly tensioned check that the drill head hinge pin b
25. cm diameter chain or 5 8 wire rope around each of the outer four 4 corners of the drill base Attach each chain or wire rope to the free end of the chain or wire rope protruding from the concrete and tension the drill down with a come along style winch turnbuckle etc Chain or wire rope must be adequately pretensioned such that they are immediately effective in transferring load This tensioning can be verified by applying a load to the midspan of the cable and measure the deflection perpendicular to the cable For a 17 432 mm long rope a deflection of 1 4 6 mm under a 150 Ib 68 kg force will indicate that the required preload of 1000 Ibf 454 kg is present Apply a 150 Ib 68 kg force and adjust the tension until a deflection of 1 4 6 mm is A observed lt 17 432 mm Rope ON 45 Ensure the drill is level in both directions and the levelling jacks have been securely clamped into the drill base Ensure the location of any obstacles at the rear of the drill will not be in the way of all proposed drill hole angles 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations 444 Anchoring on a Concrete Pad Top View Anchor Chain or Cable aos ae a Tie Downs Hole Collart fo 2 4 4 Cable ee jor Chain Drill Base M
26. constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 102 38 Lay the input carrier flat on the work bench lip up and apply a bead of RTV high heat sealant around the outside edge lip Install the input carrier in the input pinion and shaft bore of the main housing The correct position of the input carrier is with the large counter bore on top with the input carrier protruding over the front of the main housing 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 103 Apply Locktite 242 to the threads of the six 1 2 x 1 3 4 capscrews Install and torque to 50 Ibfeft 67 79 Nm NOTE The output shaft should be OEA eae aE g bolts used for installation of the bearing Install a 3 8 UNC x 3 4 bolt KOENE AAE y Eer E and flat washer Torque the inner lock ring to preload the output shaft lo pnsure inat HE eae arg for a rolling torque of approximately 70 Ibfsin 7 91 Nm indeed seated in the housing and the torque value is maintained A CAUTION After setting the proper torque and before removing of the 3 8 0 95 cm UNC x 3 4 1 91 cm bolt scribe a line on the main housing an
27. decreasing the spindle rom and increasing the available torque Maximum pressure within the rotation circuit is limited by the pressure compensator setting of the primary pump ie 3500 psi 24 1 MPa The pressure within the rotation circuit is displayed on the rod torque gauge on the control console which monitors the pressure within the main valve bank rom Control 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation 510 Fast Feed Circuit The fast feed section of the main valve bank controls the rapid traverse of the drill head This mode is normally used for rechucking at the completion of the core run or for locating the drill head in a desired position on its feed stroke This valve spool is a spring centred 3 position design with a closed centre Full primary pump output 43 gpm 163 L min can be directed to the feed cylinder through this spool Pressure within the fast feed circuit is limited to 2500 psi 17 2 MPa by work port relief valves These are located on both A and B ports of the fast feed valve section and are nonadjustable ad a ae 1a i 3 Port Relief Valve Fast Feed Valve Spool The function of the work port relief valves is to protect the feed cylinder from over pressurization The A and B
28. each side of snap ring NOTE Note the orientation of races When the races are pressed in they must be tight on spacer 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting Slide intermediate shaft tapered roller bearing down the shaft till it bottoms out Note the orientation of the bearing 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting Slide intermediate shaft tapered roller bearing down the shaft and into the intermediate gear 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting Intermediate Shaft and Gear Assembly 10 With the PQ Head main housing resting flat on the work bench place the intermediate shaft and gea
29. lock plate Install lock plate with the 1 4 NPT thread hole on your left hand side Apply Locktite 242 to the threads of the two 1 2 UNC x 1 1 2 bolts 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting Install bolts part way then apply RTV high temp sealant to the bolt heads to seal the bolt holes in the intermediate lock plate Torque these bolts to 50 Ibfeft 67 79 Nm 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting NOTE Main housing must be blocked up in a way that is very rigid due to the weight and amount of force that must be applied to complete the assembly 14 Roll the main housing face up on the work bench Raise and block up the main housing approximately 8 200 mm off of work bench Make sure not to block the main spindle bore or the input shaft bore These bores must be left open to accommodate the installation of the main spindle and the input gear shaft assembly Install a dial indicator inside the main housing Position the dial point on the face of the intermediate gear Using a short pinch bar check for b
30. ports of the fast feed valve section are plumbed directly to a manifold at the rod end base of the feed cylinder The feed cylinder is a double acting design which features internal porting to direct oil either above or below the cylinder piston depending upon whether extension or retraction is desired Also plumbed into the fast feed circuit is the fine feed circuit The fine feed circuit is a function of the secondary pump and is controlled by a 3 position closed centre detented selector valve When in neutral the fine feed valve will not allow oil from the main valve bank fast feed circuit to enter the fine feed circuit due to its closed centre Pressure within the fast feed circuit is monitored on the rod torque gauge on the control console Rod Torque Gauge 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation CD Main Line Hoist Cable Circuit This is a spring centred 3 position closed centre valve spool which can receive full primary pump output 43 gpm 163 L min Full system pressure of 3500 psi 24 1 MPa is available within the main line hoist circuit The main line hoist circuit incorporates a counterbalance valve on the exhaust oil side of the hoist motor when in the lowering mode This valve is normally closed and will not allow the hoist to lower
31. right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 43 61 Replace suction hydraulic oil filter and fasten the oil filter housing onto the head box Use a hydraulic sealant on the threaded port in the head box es Item 61 62 Replace the hydraulic gear pump suction hose and clamps 63 Replace the hydraulic gear pump pressure hose to the bottom spindle bearing cap Item 63 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting CAUTION ponot 64 Refill the Funk transmission assembly to the correct level with engine svari To doco wil seeultin oll original factory fill quantity is 8 quarts U S 7 9 L Refer to page overheating 9 05 for a list of lubricants With head assembly in the vertical position and no spindle rotation the maximum or full level will be when oil reaches the oil level plug located on front face of transmission This oil level can also be monitored through the clear tubing on the back side of the head assembly Oil Level Plug OAR Q Lone vear of s Ensure this surface is level L Item 64 Clear Tubing seyTyyhs 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore
32. these down evenly using a cross hatch pattern The silicon sealant on the threads of these bolts will seal the tapped holes in the final drive housing and prevent leakage Item 8 9 Torque the eight 1 2 x 1 1 4 UNC bolts to 50 ft Ib 68 Nm in an even cross hatch pattern with a tension wrench 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 10 Assemble the top tapered bearing cone onto the spindle with the larger bearing O D towards the chuck flange on the spindle Item 10 11 Now place the final drive driven sprocket with the extended boss towards the bearing onto the spindle Do not insert the drive keys into the spindle as the gear will only be used to press the top bearing cone into position against the chuck adapter flange and then removed Item 11 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 12 13 14 15 Use a soft hammer to tap the final drive driven sprocket down to the bearing shoulder This is a slip fit only and should not be pressed to start the gear Once the final drive driven sprocket has made contact
33. to protect the heat exchanger should a restriction build up in the circuit This is set at 75 psi 0 5 MPa 50 psi 0 3 MPa cracking and will direct all oil to the main return filter should this pressure be reached After passing through the heat exchanger if at operating temperature or coming direct from the thermal valve if below operating temperature the exhaust oil from the main valve bank is then directed to the main return filter This is a 10 micron assembly located in the top of the aluminium hydraulic reservoir A clogging indicator and full flow bypass valve are included in this assembly Main Return Line Filter 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation CET Secondary Circuit A CAUTION ifthe gate valves are ever closed to perform any work on the hydraulic system ensure they are fully opened and resealed in that position with the hydraulic reservoir topped to the correct level before operating the drill Use the correct grade of clean hydraulic oil from uncontaminated containers to refill the reservoir The secondary circuit functions comprising of the feed rate control valve fine feed mode selector up down or neutral auxiliary circuit mud mixer on off rotation speed control and chuck control open close are supplied
34. tower during raising drilling or lowering Make certain there are no loose objects on the mast 3 Visually check the drill for any loose or unserviceable components leaks which may fall off during the faulty equipment etc and repair these before operating the machine raising of the tower or when operating the drill For more detailed hydraulic servicing requirements refer to the recommended service intervals of this manual 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice G EBOART TONG YEAR aa en aa Anchoring the Drill AX CAUTION 5 not operate the LF 70 without the drill being levelled and securely anchored The LF 70 is a highly mobile lightweight diamond core drill Because of these attributes it is essential that the drill is securely anchored to the formation being drilled This can be achieved in a variety of ways which will be discussed below Ad CAUTION Ensure that log or rod bundle 3 rods placement at the rear of the drill will not interfere with any proposed drill hole angles Unconsolidated Overburden The most expeditious means of securing the LF 70 in unconsolidated formations is to use twin anchor logs cemented and buried in the ground with chain or wire rope attached to them protruding to the surface The chain or wire rope can then be passed th
35. until a positive pressure is applied to the motor A port ie to lower the load When the hoist lever is returned to neutral the counterbalance valve will once again close and isolate the hoist motor to prevent loads running away Main Line Hoist Counterbalance Valve The main line hoist planetary reduction assembly also incorporates a spring applied hydraulically released brake This locks the hoist assembly either the A or B port of the hydraulic motor is required to release the brake to allow the hoist to be raised or lowered As a third measure of preventing hoist overrun the planetary gear assembly incorporates a sprag type bearing This ensures that the main line hoist hydraulic motor must be powered ahead of hoist drum rotation ie if the hoist drum rotation begins to overrun the hydraulic motor the sprag bearing will lock 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation GETH NOTE Because of this circuit and the built in logic to pay out hoist cable as the drill head feeds down it is very important that the feed rate valve is left open when each drilling run is completed and the fine feed is turned off with the fine feed selector valve If the feed rate valve was to be closed pressure could be trapped within the hoisting circuit holding t
36. will control the rate at which the drill head retracts ie back reaming Turning the rotary control counterclockwise increases the rate of penetration weight on bit The relationship between the fine feed flow control valve and the weight on bit gauge on the control panel is evident as this valve is adjusted This valve has an adjustable orifice which meters oil from the T port of the fine feed selector valve piston end when in the down mode and is known as the bleed off pressure If the valve is only cracked slightly ie counterclockwise the volume of oil escaping from the low pressure side is minimal which translates to a slow rate of penetration and bit weights The bit weight gauge is plumbed in between the T port of the fine feed selector valve and the feed flow control valve In the above scenario we are only allowing a small volume of oil to escape from the feed cylinder This will create only a slight pressure differential between the rod pressure in and the piston pressure out end of the cylinder This slight pressure differential will register as a small reduction in the value displayed on the bit weight gauge As the fine feed flow control valve is opened further counterclockwise rotation more oil is allowed to escape from the piston side end of the cylinder This increased flow translates to a greater pressure differential which will register as a larger drop in the value displayed by the bit weight gauge The
37. with oil from the secondary pump This is piggybacked to the primary pump being driven by a through shaft and is an open loop circuit Suction Line Gate Valve Secondary Pump Variable Displacement Axial Piston The suction inlet for the secondary pump features a 100 mesh strainer located inside the aluminium hydraulic reservoir with 3 psi 0 02 MPa vacuum bypass valve and an external gate valve to isolate the reservoir should the system require maintenance Maximum output from the secondary pump is 11 gom 41 6 L min The secondary pump is of an axial piston pressure compensated design The pressure within this circuit is limited to 2000 psi 13 8 MPa by the compensator on the pump This is the vertical adjustment screw located on the rear of the secondary pump To set the secondary pump compensator position the secondary circuit levers in the following positions Fine Feed Control Lever Neutral central position Auxiliary Control Mud Mixer Lever Off Chuck Control Lever Closed Compensator Adjustment Screw 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation CED Monitor the feed pressure gauge when setting the secondary pump compensator to its correct pressure of 2000 psi 13 8 MPa for most drilling operations Oil enters the secondar
38. 25 Mud Tank Supports each 26 12 Leveling Jack Legs each 25 11 Operator Stand 26 12 Bare Base 630 286 Total Weight 1398 634 Recommended Tires 7 50 x 16 Rims 16 x 6 8 on 6 1 2 Hole Pattern Stub Axle Pattern 8 bolt G M 6 1 2 hole pattern 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Power Unit Module The standard power unit is a Deutz BF4L914 which is a turbocharged air cooled diesel engine rated at 97 5 hp 72 kW with a displacement of 263 in 4 31 litres The optional power unit is a liquid cooled 4 cylinder turbocharged after cooled Cummins diesel rated at 131 hp 98 kw with a displacement of 239 in 3 92 litres The flywheel incorporates a composite toothed adapter plate which drives the hydraulic pumps Murphy shutdown gauges for oil pressure and engine temperature are standard Quick connect couplings for the air blast hydraulic oil cooler battery fuel lines engine throttle and electrical harness allow the power unit to be quickly and easily removed from the drill A spark arrester is included as standard on the exhaust 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 3 5 Draw Works Sub Fram
39. A f 16 mm Dia gt _Leteveling Jacks FEL G mE ORE iG Timbers gt N AW a RH Stat t ca A S Y a Rocks and Boulders S J C4 aardwood logs S Or HG Drill Rods A RIPE KIA Me Backfill and Compact Fence Ensure the drill is level in both directions and the levelling jacks have been securely clamped into the drill base a a l 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations CEED Alternate Anchoring Methods 8 Ifthe drill site is particularly hard and difficult to dig an alternative pattern of anchoring the drill can be utilized This would involve using three 3 10 25 cm minimum diameter hardwood logs in good condition ie not rotting buried just below the earths surface cross ways at 90 to the final positioning of the drill A 10 3 m HQ drill rod with attached chain should be positioned beneath and at 90 to the buried logs with the chain end of the rod at the mast end of the drill The anchor chain should be tensioned back to the base at an angle to prevent the drill pushing itself off line when high bit loads are applied on angle holes Anchoring with Compacted Back Fill Top View Compact Soil Fill Drill Base Position on Timbers Chain or Wire Hardwood Logs Mast End Side View
40. Draw Works Unit 3 8 1 cm Dia cc pe Drill Base Chain or 5 8 Ta M 16 mm Dia TE i Timbers Wire Rope KT A HQ Drill A Hardwood Logs Ensure the drill is level in both directions and the levelling jacks have been securely clamped into the drill base 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations 9 Another pattern of anchoring when the site is difficult to dig is with the use of concrete in a shallow trench Use four 4 pieces of 2 0 6 m minimum length scrap HQ drill rod with attached 3 8 1 cm diameter chain or 5 8 16 mm wire rope The chain or wire rope should be long enough to have 5 1 5 m protruding after the trench has been filled Place one piece of rod and chain or wire rope in each of the four 4 outer corners of the trench beyond the levelling jacks Fill the trench with concrete covering the pieces of rod and chain or wire rope to surface level keeping the protruding chain or wire rope ends free The collar area for drilling vertical holes should be kept clear of concrete Allow 12 hours for the concrete to cure Next position two 2 10 x 10 25 cm x 25 cm timbers longitudinally under where the drill base levelling jacks will be positioned Place the drill on the timbers Use additional 3 8 1
41. LUID FILL CAP CONTROL CARTRIDGE TWO SPEED WATER PUMP CONTROL NOTE Actual equipment may not be exactly as shown 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drill Components 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 4 2 4 4 4 6 4 9 4 15 4 17 4 22 4 25 4 27 4 28 4 28 4 29 4 30 4 31 4 32 Drilling Operations Introduction Safeguards Routine checks should include Visual Inspection of Masts Pre Start Check List Anchoring the Drill Unconsolidated Overburden Alternate Anchoring Methods Start Up Procedures Raising the Mast Mechanical Mast Raising Standard Raising the Mast Hydraulic Mast Raising Option Collaring the Hole Casing Guide Bushing Casing Adapter Collar Inserting the Core Barrel Rod Guides Stacking Drill Rods Force on Diamond Bit Bit Weight Table Shut Down Procedures Lowering the Mast Hydraulic Mast Raising Version 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations dE HD Introduction T
42. OART LONGYEAR DATE MANUFACTURED MAST HEIGHT NOM MANUFACTURER SERIAL NO id MAX WIND RESISTANCE IN km h ACTUAL VELOCITY STATIC HOOK LOAD RATING MAST VERTICAL MAX RATED STATIC HOOK LOAD FOR SINGLE LINE 5448 kg REFER TO OPERATIONS amp SERVICE MANUAL FOR REDUCED RATING WHEN OPERATING AT ANGLES OR WITH ROD STACK LOAD MANUFACTURED BY ADDRESS 4 WARNING Any of the following conditions will reduce the maximum rated static hook load acceleration and impact loads rod stack loads wind velocity or angle mast Consult operations and service manual for reduced rating 102864 D A WARNING 12000 Lbs HOIST Maximum line configuration for this hoist on LF70 drill is single part line ONLY DO NOT use multiple part lines 4A DANGER 4 WARNING To avoid interference with ce a draw works frame below When retaining inner support legs on mast bracket above Reassemble bolts from outside of mast inwards so that nuts are on inside of mast 103563 DO NOT operate this machine without reading and understanding the operations amp service manual DO NOT use multiple part lines with 12000 Lbs hoist use single part line ONLY Q amp Q BOART LONGYEAR ll DS Table of Contents Chapter 1 General introduction 1 2 General Information 1 3 Ordering and Returning Parts 1 4 Standard Warranty Chapter 2 Drill Introduction 2 2 General Drill Arrangement 2 4 Tech Data Chapter 3 Drill Components 3 2 Drill Base
43. S 4 894 osz sol 6 L seno g 4 ebueyo lO 1299 L dno SYOM MeIG JSIOH OUT uewN 9 894 09 S OUS E Z ung Bseald dW JSIOH SUIS Buueeg ebuejy GC 8 p bai se sal pr sled ge 4 ebueyo IIO PAH L JNpON I NeIp H JJOM S Y NLeIpP H op 8 osz Salil 9 9 seno Z ebueyo IIO PAH dno Pun uoneoy Aqw ssy pe H aAUq 8 osz sol GZ seno g 4 ueyo WO ANIDNA L dnog pun uonejoy peeds p uolssiusuel Z g enuen BdIAI9S pue uogeiado s a1Nnpejnueny 23S MUA JOMOd say jea13 U say jeAsazuy s n pPo N edAL s ulod qn7 y2 y49 3A97 oa6bueyy Auen Ayyueno eqn yueouqn7y jo JOQqUINN uo1e907 uonduos qg we is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 2005 Boart Longyear Inc Boart Longyear General Maintenance and Trouble Shooting 7 14 HQ Rotation Unit Group Drill Head Disassembly 1 With suitable lifting equipment remove the rotation unit group from the carriage using the three lifting points provided ltem 1 2 Place the rotation unit group on a suitable work bench and remove the square head pipe plug drain plug from the base of the unit Capture the escaping oil in a suitable container so this can be properly disposed of do not reuse this oil 3 Remove the front service plate located on the front of the head box Item 3 4 Rotate the spindle until the master link of the drive head chain aligns with the uppe
44. above the pump compensator setting ihe r Main Valve Bank Relief Valve Main Valve Bank 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation 58 O Rotation Circuit When rotation is initiated full primary pump output 43 gpm 163 L min is directed to the rotation motor via the rotation spool on the main valve bank This is a detented three position spool with lockout The lockout is to prevent accidentally shifting from forward rotation directly into reverse which could cause the rod string to back off down the hole Rotation Spool with Lockout A 8 l 2005 Boar VRIME BLUM debe Falt fany striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation CEED Rotation Motor The rotation motor is a variable displacement bent axis design with hydraulic control of the swash plate ie the displacement of the motor can be adjusted from minimum to maximum by adjusting the rom control on the control panel Turning the rom control fully clockwise will place the motor on minimum displacement ie maximum rpm conversely counter clockwise movement of the rom control will allow the motor to shift from minimum displacement towards maximum displacement thus
45. ad al DRILL BASE POSITION Log or Rod Bundle 3 8 1 cm Dia Chain or 5 8 16 mm Dia Wire Rope 6 Position some 10 X 10 25 cm X 25 cm timbers longitudinally under where the drill base levelling jacks will be positioned 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations gt 7 Place the drill on the timbers and run additional 3 8 1 cm chain through the two front and two rear lifting lugs on the drill base Attach each chain to one free end of the chain or wire rope protruding from the trenches which is attached to the cemented log or rod bundle and tension the drill down with a come along style winch turnbuckles etc Chain or wire rope must be adequately pretensioned such that they are immediately effective in transferring load This tensioning can be verified by applying a load to the midspan of the cable and measure the deflection perpendicular to the cable For a 17 482 mm long rope a deflection of 1 4 6 mm under a 150 Ib 68 kg force will indicate that the required preload of 1000 Ibf 454 kg is present Apply a 150 Ib 68 kg force and adjust the tension until a deflection of 1 4 6 mm is i observed lt 17 432 mm Rope End View of Engine Winch or Turnbuckle 3 8 1 cm Dia Chain or 5 8 eo
46. ain is initially installed into drive head the final drive pinion carrier plate should be in contact with adjuster block When the distance between adjuster block and pinion carrier plate reaches 0 530 in 13 mm the drive chain is at the maximum allowable wear and must be replaced This distance coincides with full adjustment available from the 4 slotted holes in the pinion carrier plate See photo Item 6a and 12 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Head Slide Wear Bars Field Maintenance Check and Adjustment As the head slide wear bars wear down the head movement will increase to a point that replacement shims p n 100172 0 015 and 0 018 0 38 mm and 0 45 mm should be used to correct head movement Depending on the wear pattern or location the shims can be used as is full length or cut into shorter sections in order to fill gaps that may occur between wear bars and lower mast slide surfaces This will maintain head positioning and extend the service life of the wear bars Shims and 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 7 NOTE Ensure head is exactly Refil
47. alves reservoir hydraulic hoses function controls filters and gauges The reservoir is constructed from aluminium to prevent internal corrosion and features 100 mesh suction strainers on each pump inlet These are fitted with 3 psi 20 kPa vacuum bypass valves which will allow full oil flow access to the pumps in case the strainers become blocked or when starting up in sub zero temperatures 82 F 0 C Weight Complete with hoses wet including hydraulic oil 920 Ibs 417kgs Oil Volume operating level 30 U S Gallon 114 Litres 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drill Components Control Panel WATER PRESSURE ROD TORQUE GAUGE GAUGE BIT WEIGHT a ae GAUGE WIRELINE FEED PRESSURE KO HOIST GAUGE e LOWER o Y z CS MAIN LINE RAISE ae 6 ay LOWER RGU P NO Nee AGS T IN LOWER HEAD ROTATION FORWARD REVERSE WATER PUMP S THROTTLE B FEED RATE CONTROL 4 Mast q UP k MAST RAISING CYLINDER DOWN le ADJUSTMENT CONTROL V FEED PRESSURE T REDUCING CONTROL J 49 MUD MIXER CATHEAD FLOW CONTROL FEED UP SS SS DOWN 42 p 18 FOOT CLAMP ADJUSTMENT CONTROL AUXILIARY 44 10 Ca D OFF a ROTATION SZ SPEED FOOT CLAMP S S 4LOSED OPEN SN A CONTROL 5 HYDRAULIC CHUCK ADJUSTMENT F
48. and rotate the spindle This will feed the chain around the sprockets until both ends are at the front service plate opening Item 49b 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 39 NOTE Before undertaking the 50 Install master link link shafts facing direction of pinion carrier above a clean rag should be Sequence consists of master link one set of rollers two links one set inserted through the top and bottom of rollers two links one set of rollers one link and two split pins chain link service ports and under Install split pins by holding each pin individually with needle nose pliers the drive head chain Spread the rag out in the event that the roll pin which is to be inserted in the remaining half of the master link is dropped into the head box and pressing it in with a pair of slip joint pliers Split the difference and spread the split pin open on both ends of the master link shaft with a small chisel or screwdriver and hammer ve mm oeo mma D ola meo Do a aa et lee he Item 50b 51 After installing the master link back off the four lock nuts on the transmission and the four lock nuts on pinion carrier just enough so that the drive head chain tensioner can move the transmission and carrier easily By us
49. angled in the machine Never rotate the drill rods without the water swivel attached to the drill string Ensure the hoisting cable is attached to water swivel bail Never rotate the drill rods with a rod joint located behind or above the chuck Keep guards installed and maintained in good working order Always keep the work area clean Avoid dangerous working environments Do not operate equipment while under the influence of drugs alcohol or medication Keep visitors a safe distance away from the work area Wear personal protective equipment such as a hard hat safety glasses ear protection and steel toed work boots Read and understand the operations manual and labels affixed to the machine Use only Boart Longyear replacement parts Failure to do so could Cause severe damage to the machine or result in operator injury and may void your warranty Use only qualified service technicians Failure to do so could cause severe damage to the machine or result in operator injury and may void your warranty Never climb on top of the machine Ensure that the drill and accessories fully comply with applicable local safety and health regulations Do not exceed rated capacity of any piece of equipment DO NOT store the overshot in the mast as this could result in damage or injury Never rotate the drill rods with a rod joint located behind or above the chuck Do not adjust the hydraulic system before consulting a Boart Lon
50. antly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 3 7 Lower Mast Section The lower mast section pivots in the draw works sub frame to allow the desired drilling angles to be achieved It also houses the feed cylinder which has the rod end directly connected to the base of the mast The feed cylinder body is directly attached to the drill head carriage which slides on the upper face of the lower mast section The two mast support legs are retained on the lower mast section Also located on this mast section is the operator s rod guide actuating lever for positioning the cable operated yoked rod centralizer plates which are located on both the middle and upper mast sections The bottom casing positioner base is removable and features a hollow spigot which retains the casing adapter collar and or casing guide bushing Weight Complete including feed cylinder rotation unit carriage and mast support legs 900 Ibs 408 kgs NOTE Actual equipment may not be exactly as shown 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Upper Mast Section NOTE Actual equipment may not be exactly as sh When the operator chooses to work with 10 ft 8 m rod joints the upper mast section is
51. ast End Side View r Draw Works Unit 3 8 1 cm Dia an A Drill 5 Chain or 5 8 a ae ie Downs 16 mm Dia N Ax 4 Cable Wire Rope x nl or Chain sce moer non EER K AS ARS plats TRS ve el Concrete Pad is Sy 77 Hard Sele HQ Drill Rods 10 Alternatively if the drill site is heavily forested the LF70 can be anchored to the base of sturdy healthy trees in the immediate area Once again the machine should be anchored so that the drill will not push itself off the hole when high bit loads are encountered 11 Burning Casing In Experienced operators may find that burning a piece of casing into the ground may be the fastest means of anchoring the drill 12 Drilling and Insert Rockbolts if on bedrock 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice GQ BOART LONG YEAR aaa ee aE Start Up Procedures 1 Proceed to start the drill as follows only after the pre start check has been completed 2 Ensure the control panel levers and gear box selector are in the following position Chuck selector 10 Closed Auxiliary selector 12 Off Feed selector 13 Neutral central position Head rotation lever 1 Neutral central position Fast feed lever 2 Neutral central position Main line hoist lever 3 Neutral central position Foot Cla
52. at the bolt going through the rod end lines up with the hole in lever when lever is rotated fully clockwise and cable is fully retracted except for 1 2 turn clockwise on micro adjust knob Neutral Position No Output Flow l 7 Maximum Displacement Position DN i Full Output Flow MN Rod End adala Ta aH N7 aw z Micro Adjust Knob Ref Throttle Cable Ref 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 7 11 PQ Head Bearing Lubrication The grease fittings on upper and lower bearing caps should have three 3 shots of multipurpose grease from a hand operated grease gun every 8 hours while rotating slowly Grease Nipple Lower Bearing Cap PQ Head TARS Spindle Nut Actual equipment may not be exactly as shown Grease Nipple Upper Bearing Cap a nN PQ Chuck Actual equipment may not be exactly as shown 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 7 12 PQ Head Box Oil Level Ensure the PQ head is to the correct level with hydraulic oil original factory A WARNING Dona fill quantity is approx 10 5 quarts 10 litres The drill must be level in all o directions with head a
53. ation 1 Raise the mast assembly to the vertical position observing proper safety procedures to stabilize the unit NOTE Actual equipment may not be exactly as shown ltem 1 2 Move the drive head assembly to a position of easy access for maintenance and secure safely 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 3 To adjust the drive head chain tension first drain the head box of hydraulic oil Remove the square head pipe plug drain plug from the base of the unit Capture the escaping oil in a suitable container so that it may be properly disposed of DO NOT reuse this oil Loosen the two lock nuts on the upper head hinge support see 7 11 Rotation Unit Group Reassembly on the upper left side of the Funk transmission This will allow for free movement of the Funk transmission during adjustment A WARNING pamage can result if above procedure is not followed Item 4 5 Remove the four capscrews which secure the top chain link service cover and remove cover Leave breather hose attached Item 5 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Genera
54. ation 7 14 HQ Rotation Unit Group Drill Head Disassembly 7 22 HQ Rotation Unit Group Drill Head Reassembly 7 46 PQ Head Drive Group Optional 7 112 PQ Nitro Gas Chuck Assembly Procedures NOTE Actual equipment may not be exactly as shown and should be verified with your Boart Longyear representative Not withstanding any other statements that may appear in this publication Boart Longyear makes no guarantee that adoption of its suggested guidelines will yield a specific performance neither does it accept responsibility for any lose damage or other consequences that may so arise All volumes are in US gallons and litres Release date December 2005 Drill Introduction 1 2 General Information 1 3 Ordering and Returning Parts 1 4 Standard Warranty 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice amp BOART LONGYEAR aaa ED General information The purpose of this manual is to furnish the operator with detailed information which will enable him to achieve the maximum operating performance from his drill It will also give information necessary to perform preventative maintenance and make minor repairs and adjustments Boart Longyear is backed by over 100 years of experience in the design manufacture and operation of core drilling equipment Many of the accepted practices in use toda
55. bearing cap is removed Prior to reassembly ensure the internal galleries in the head box and the spindle bearing cap are clean and free from debris During reassembly use a new O ring to seal the mating surfaces of the oil galleries on the head box and the bottom spindle bearing cap Make sure the oil delivery port is oriented above the internal gallery 29 30 31 32 33 34 35 36 7 19 Lock the final drive spindle sprocket with a 2 x 2 6 cm x 5 cm aluminium block to prevent the spindle from turning Loosen the spindle nut by striking the removal tool with sharp blows from a 5 Ib 2 kg hammer and remove the spindle nut Remove the bottom bearing cone Remove the eight bolts retaining the bottom spindle bearing cap Use the four threaded jacking holes in the bottom spindle bearing cap to remove this item with the appropriate bolts 2 ibs ltem 33 Remove the bottom bearing shim spacer tube from the spindle Raise the head box clear of the work bench and firmly support the box with suitable blocks of wood Tap the spindle down using a block of wood to protect the spindle The spindle will then slide free of the final drive driven sprocket keys which are spaced at 90 degrees Item 36 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice
56. block This signal moves the shuttle valve and allows a flow of oil to release the spring applied brake on the hoist Oil is also directed to open the two pilot operated check valves in the hoist manifold block When this signal is applied the hoist is free to unspool as the hydraulic motor can now bypass oil from the A and B port due to the pilot operated check valves being open in conjunction with the spring applied brake being released Tension is kept on the hoisting cable due to internal friction of the 16 1 nominally for Geroler type motor mechanical planetary reduction in the hoist drum and recirculation of hydraulic oil between the A and B ports of the large displacement main line hoist hydraulic motor NOTE Actual equipment may not be exactly as shown Bit Weight Gauge 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Wireline Hoist Circuit The wireline hoist spool is the final function circuit of the main valve bank This controls the hoisting or lowering of the wireline cable The valve spool for this section is of a closed centre 3 position spring centred design The maximum pressure within this circuit is limited to 2200 psi 15 2 MPa by work port relief valves on the A and B ports of the valve spool Port Relief Valv Wireline Hoist Valve Spool The wireli
57. box into its machined groove Retain the O ring with a small amount siliconed to the transmission of lithium based grease mounting face NOTE Apply RTV sealant to the bolt threads Install new rear cover transmission seal Coat the new spacer O D with lithium based grease and install on output shaft and in new seal Apply a bead of RTV sealant to the spacer face and install new drive sprocket RTV sealant will seal between spacer and sprocket NOTE Test fit the new sprocket on output shaft to obtain proper location of access hole to install cotter pin in output shaft Apply RTV sealant inside drive sprocket around output drive shaft to seal the spline Install hardened washer Item 31 nut and cotter pin Install new Remove transmission oil drain plug to drain all oil from transmission transmission shim Remove old Remove cotter pin nut and hardened washer from the drive sprocket RTV sealant from transmission Remove drive sprocket and seal from the rear cover plate Remove drain plug and reinstall with a the two 3 8 bolts closest to spindle from the rear cover and replace coating of new RTV sealant with two 3 8 button head bolts from the conversion kit 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice NOTE The Funk transmission must slide freely in the head box
58. ce exerted on the diamond bit while drilling is approximately equal to the weight of the rods and the down force exerted by the hydraulic cylinder This force is difficult to measure directly but can easily be found by the following OFF PRESSURE method 1 First suspend the rods with the hydraulic head cylinder as follows a Move the Chuck Selector forward closed with the Fine Feed Rate Control Valve open then move Feed Control Selector forward feed up b Move the Feed Control Selector rearwards centre position then close the Fine Feed Control Valve c Move the Feed Control Selector rearwards feed downward and note the pressure on the Bit Weight Gauge 2 Next start drill string rotation slowly bringing up to drilling rom Then slowly open the Fine Feed Rate Valve as the rods are lowered and the bit makes contact The amount of the pressure reading decreases and can for convenience be called the OFF PRESSURE 3 The OFF PRESSURE multiplied by the effective area of the hydraulic cylinder 7 06 sq in 45 sq cm will give the downward force exerted on the diamond bit EXAMPLE Hydraulic Pressure w rods suspended 1500 PSI 10 343 MPa Hydraulic Pressure w bit contacting bottom of hole 1000 PSI 6 895 MPa Off Pressure is the difference 500 PSI 3 448 MPa Total force on bit 7 06 sq in x 500 PSI 3530 Ibf 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must the
59. cifications and price without notice Drilling Operations Never exceed the Rated Hook Load which is indicated on the Load Rating decal When calculating hook load always include load handling devices travelling blocks etc Routine checks should include Inspection of welds in erecting mechanism for cracks and other signs of deformity Inspection of wire rope including operating lines raising lines and guy lines for kinks broken wires or other damage Make certain that guy lines are not fouled Check unit for level and correct placement before erecting operation Check lubrication of crown sheaves During drilling operations it is advisable to make scheduled inspections of all bolted connections to ensure that they are tight 48 hours after the initial erection of the mast check the bolts for correct torque Ensure that the Load Rating and Warning decals are installed on the mast and are in good shape Steel becomes brittle when operating in low temperature conditions EXTREME CAUTION must be exercised when operating at or below 25 C 13 F as the mast may no longer hold the rated load Frequent visual inspection of mast members and welds is even more critical at these tem peratures see page 8 Ensure support legs are located on a solid footing and tied back to a solid anchoring point BOART LONGYEAR MAST HEIGHT NOM MAST HEIGHT NOM MAX WIND RESISTANCE IN km h ACTUAL VELOCITY SERIALNO
60. d inner lock ring Fit the in lb torque wrench with a 9 16 socket and by utilizing the 3 8 UNC x 3 4 bolt and washer installed previously thread the inner lock ring up against the bearing to the required torque 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 104 NOTE Double check your scribe Remove the 3 8 UNC x 3 4 bolt being careful not to disturb the lines to verify that the position of the position of the inner lock ring inner lock ring has not changed l l 40 Thread on the outer lock ring Leave a distance of approx 0 060 1 5 mm between the inner and outer lock rings Position the outer lock ring so that it can be bolted to the inner lock ring Apply Locktite 242 and a 3 8 internal tooth lockwasher to each of the six 3 8 UNC x 1 3 4 bolts Install the bolts and washers and torque in a cross hatch pattern to 120 Ibf ein 7 9 Nm 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 105 41 Place the lower seal carrier face up on the work bench Place the first oil seal lip down into the lower seal carri
61. d must therefore reserve the right to change designs materials specifications and price without notice amp BOART LONGYEAR C Appendix A See Attached 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice TECH DATA No 8 TECHDATA MKT1617 Date January 2007 Page 1 of 10 LF70 Diamond Core Drill System DRILLING DEPTH GUIDELINES The figures in these tables have been Actual drilling capacity will depend on in hole calculated based on field experiences and tools and conditions drilling techniques and may be reasonably expected equipment used METRIC SYSTEM U S CUSTOMARY SYSTEM Hole Depth metres Hole Depth feet DRILL ROD CORE BARREL Dry Hole Fluid Filled Dry Hole Fluid Filled BRQHP BQ 915 1050 3000 3440 BRQLW BQTK 1145 1320 3750 4320 NRQHP NQ NQ2 705 810 2310 2650 NRQHP Upset 830 960 2730 3140 HRQHP HQ 475 545 1560 1785 HRQHP Upset 655 755 2145 2480 HWT PQ 315 360 1025 1175 PRIME MOVER Standard Unit Deutz BF4L914 tier Il 4 cylinder air cooled turbocharged diesel engine Displacement 4 31 L 263 cubic inch Power maximum 71 7 kW 97 5 hp Max Rated RPM factory setting 2450 rpm Optional Unit for altitude ASL Cummins 4BTA 3 9 tier 1 4 cylinder water cooled turbocharged diesel engine
62. dapter Install the shim pack and retaining washer with the two 7 16 UNF x 1 1 2 bolts to the end of the transmission output shaft Torque these two bolts to 40 lbfeft 54 23 Nm Using feeler gauges check the distance between the end of the splined adapter and the retaining washer There must be 005 to 010 0 013 to 0 025 cm end play Lockwire these two bolts together Apply a Lithium based grease to the splined adapter and the internal spline of the input pinion and shaft Apply a bead of RTV high heat sealant to the mounting face of the transmission just inside the bolt hole mounting pattern Using a suitable sling and lifting device mount transmission to the input carrier Apply Locktite 242 to the threads of the six 1 2 UNC x 1 3 4 bolts Install with lock washers and torque to 50 Ibfeft 67 79 Nm 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Module This module contains the hydraulic pumps valves reservoir hydraulic hoses function controls filters and gauges The reservoir is constructed from aluminium to prevent internal corrosion and features 100 mesh suction strainers on each pump inlet These are fitted with 3 psi 20 kPa vacuum bypass valves which will allow full oil flow access to the pumps in case the strainers become blocked or wh
63. designs materials specifications and price without notice Hydraulic Explanation GETE Installation of Mud Mixer Piping Group if applicable p n 101762 1 Ensure that the valve area is clean of all debris and dirt Remove the four bolts and the cover plate from the existing valve manifold NOTE Actual equipment may not be exactly as shown 2 e Remove the four nuts 2 Install the four studs and spacer plate complete with the four O rings 3 Ensure that the spacer plate has the dimple facing up The notch on the plate should be oriented as shown below Notch Arrow Indicator Notch Dimple Facing Up on Facer Plate 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation a gt 4 Install the sequencing valve and spacer plate with the notch as shown below L Sequencing Valve 4 6 The dowel pin must be inserted to the top of the flow control valve Evenly torque all four stud nuts at 40 45 in lb in a crisscross pattern Dowel Pin 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation a gt 7 Install the directional valve on top of the flow control valve
64. dicator After determining end play the spacer must be removed and the thickness machined to obtain specified end play tolerance i e Current End Play Desired End Play 0 018 0 457 mm 0 0015 0 038 mm 0 0165 0 419 mm stock removal Therefore 0 0165 0 419 mm must be machined off the spacer face Due to the close tolerance to obtain the proper end play all surfaces concerning spindle end play must be clean and free from burrs Also the machining of the spacer must be precise 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 31 Item 30c NOTE After machining the spacer When alignment occurs the nut should be quite firm when the hammer to the proper thickness repeat strikes the spindle nut tools If for any reason you cannot reach the steps 23 to 25 and 27 to 30 next intended keyway and have to back the spindle nut off do not just back off to the nearest keyway You should back off at least one full turn and then once again now advance the spindle nut to the intended keyway Insert the two spindle nut locking keys into the spindle nut and retain with their respective cap screws AX CAUTION Ensurethat 31 Place the O ring which seals the Funk transmission onto the head the transmission shim is lightly
65. directly connected to the lower mast section 10 ft 3 m rod pulls above the drill head can be accomplished using this combination As with the middle mast section the upper mast section also has an aluminium rod slide and a yoked rod guide The upper mast section carries the crown block assembly which contains twin sheave wheels for the main line and wireline hoisting cables The sheave wheel bushings are plumbed to a remote lubricating fitting positioned on the lower mast section near the control panel 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 3 9 Middle Mast Section When used with the upper and lower mast sections the middle section facilitates rod pulls of 20 ft 6 m above the head An aluminium rod slide located on the front face of the mast guides the hoisting plug when tripping the drill string A yoked rod guide which is actuated by a steel cable and lever arm from the operator s platform centres the rod thread when making or breaking the string Middle and upper mast section combined weight 692 Ibs 313 kgs 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Module This module contains the hydraulic pumps v
66. ducts and must therefore reserve the right to change designs materials specifications and price without notice G2ECART TONG EAR aL aE Collaring the Hole The LF70 is supplied with a casing guide bushing and a casing adapter collar as standard These two items are used when collaring a drill hole and fit into the spigot on the casing positioner base of the lower mast section A WARNING to avoid a possible pinch point when installing the casing adapter collar into the casing positioner base the casing adapter collar should be threaded onto the casing from the underside of the casing positioner base Casing Guide Bushing The bores of these bushings are very close to the O D of the particular casing string that is being used to collar the hole ie BW NW etc The casing guide bushing is designed to stabilize the casing string and maintain hole alignment The casing guide bushing should be used throughout the entire casing run Casing should be firmly seated into bedrock before reducing to the coring system that will be used As both the casing guide bushing and casing adapter collar are designed to be used together operators should follow the procedures outlined in this section to ensure the drill is set up correctly a a l 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notic
67. e Drilling Operations 426 Casing Adapter Collar The casing adapter collar has the same shoulder to shoulder length as the casing guide bushing When drilling the casing the operator should advance the casing joint he intends to disconnect at until it is flush with the bottom of the casing guide bushing Once the casing is firmly seated in bedrock after the casing has been disconnected the casing guide bushing is replaced with the casing adapter collar The previous step of drilling the casing joint to the bottom of the casing guide bushing will now allow the casing adapter collar to connect to the casing string and bolt to the lower mast casing positioner base Following this procedure will ensure that the LF70 is securely aligned onto the casing string which minimizes hole alignment problems as drilling progresses Casing aa a NOTE All above photos may not be exactly as shown a a Na l 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations Inserting the Core Barrel 1 Run the drill head to the base of the the mast and swing open the drill head 2 Attach the water swivel or hoisting plug to the core barrel 3 Attach the main hoist cable to the water swivel or hoisting plug bail 4 Lift the main hoist lever which will raise t
68. e Module Contained on this sub assembly are the wireline hoist main line hoist and mast swivel mounting blocks The wireline hoist is powered by a fixed displacement Geroler motor which incorporates a counter balance valve to prevent hoist overrun The main line hoist is also powered by a fixed displacement axial piston with a counter balance valve to prevent hoist overrun In addition the main line hoist features a spring applied hydraulically released brake and an internal Sprag bearing mechanism which ensures the main line hoist drum must be hydraulically powered to unlock the drum ie The load cannot drive the drum ahead of the hydraulic motor NOTE Actual equipment may not be exactly as shown Weight Draw Work Module c w KPL12 main line hoist with 220 ft 67 m of 5 8 16 mm hoisting cable and wireline hoist with 3200 ft 975 m of 3 16 4 8 mm wireline cable 993 Ibs 450 kgs 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice DrillComponents Wireline Hoist Assembly Wireline Guard Hydraulic Motor awe 0 Wireline Drum o Mo l Side Plate RHS 0 O Side Plate LHS I ide Plate fo SG Retaining i Q Disassemble Tool Bearing Shaft Support Bearing NOTE Refer to the Parts Manual for complete 2005 Boart Longyear Inc Boart Longyear is const
69. e gauge Setting of the low pressure standby must be accomplished with all main valve bank levers in neutral and the diesel engine at idle Correct setting is 200 psi 1400 kPa Low Pressure Standby Lock Nut Adjustment Screw Primary Pump Variable Displacement Axial Piston Maximum pressure of the primary pump is limited by the pressure compensator which is factory set at 3500 psi 24 1 MPa This is located directly beneath the low pressure standby adjustment on the bottom of the primary pump and is the adjustment furthest from the pump 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation CTED NOTE Ifthe engine starts to labour when increasing pressure you may need to increase the main relief setting a little above compensator as detailed in the following section Lock Nut Pressure Compensator Adjustment Screw Primary Pump Variable Displacement Axial Piston lf the pressure compensator requires adjustment stop engine uncouple one of the main quick couplers at the main rotation motor start engine and engage the rotation direction control lever This will dead head the main pump The pressure can be read from the rod torque gauge Correct setting is 3500 psi 24 1 MPa maximum To increase loosen lock nut turn adjustment screw clockwise To d
70. e necessary to grind the internal oil tube on some older head box weldmenis This will provide the proper clearance required for the driven sprocket used with the roller chain conversion Carefully grind the tube flush with the large inside diameter of the bearing cap bore inside the head assembly weldment Item 39 40 Thoroughly clean all parts in a suitable bath taking care to remove all old gasket cement Make sure that all threads are cleaned with the appropriate sized tap This is particularly important Many bolt holes are threaded through the head box and will require a fresh seal during assembly to prevent leakage Take care to ensure that internal oil galleries do not become clogged with debris 41 Inspect all components for wear or damage prior to assembly During reassembly new oil seals must be used for both the top and bottom bearing cones It is also advisable to have a new drive head chain master link assembly installed 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice HQ Rotation Unit Group Drill Head Reassembly 1 Make sure all components have been thoroughly cleaned and inspected prior to reassembly Ensure all gasket cement has been removed and all threaded holes have been cleaned with the appropriate size tap This is particularly important as many bolt holes ar
71. e right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 15 Remove the bolts from the lower carrier seal Using the existing 1 2 UNC jack screw holes remove the lower carrier seal 16 Using a punch drive out the two oil seals 17 Remove the six 3 8 UNC bolts and internal tooth lock washers from the outer locking ring 18 Thread off the outer locking ring 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 19 Remove the two 1 2 UNC bolts from the intermediate lock plate 20 Remove the intermediate lock plate This plate will have to be pried off due to a silicone seal 21 Remove the 3 4 NPT plug from the bottom of the main housing This is a magnetic plug and must be cleaned Magnetic Drain Plug W 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 54 22 Using a 3 8 Allen wrench remove the six 1 2 UNC capscrews from the input carrier 23 In the 1 2 UNC jack screw holes insert two bolts and remove the input carrier 24 NOTE Aft
72. e threaded through the head box and will require a fresh seal during assembly to prevent leakage Take care to ensure that all internal oil galleries are clean and unclogged 2 Place the head box with top Funk transmission mating surface facing up 3 Replace the O ring which seals the internal gallery on the head box and feeds the top spindle bearing This O ring is 1 2 O D x 3 8 I D ltem 3 4 Apply RTV high temperature silicon sealant to the mating surface on the top spindle bearing cap Do not use an excessive amount around the oil gallery port as too much silicon could plug the port Item 4 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 5 Place the top spindle bearing cap on the head box Make sure to orientate the lubricating oil port in the spindle bearing cap with the internal gallery in the head box Item 5 6 Use four longer 1 2 x 1 1 2 UNC bolts to start the top spindle bearing cap onto the head box This is a pilot fit so ensure the spindle bearing cap is started and pulled down evenly 7 Once the spindle bearing cap is snug with the top of the head box remove the four longer 1 2 x 1 1 2 UNC bolts 8 Apply a light coating of RTV silicon to the threads of the eight 1 2 x 1 1 4 UNC bolts and tighten
73. earing end play of the intermediate gear assembly It must be between 0 002 to 0 004 0 051 mm to 0 102 mm In the absence of a dial indicator the following method can be used as a coarse means of determining end play Place the appropriate size feeler gauge 0 003 to 0 005 0 076 mm to 0 127 mm down inside the bearing and resting on top of the race roller contact surface Rotate the bearing The bearing rollers should roll over the proper feeler gauge size and should not roll over a feeler gauge size greater than 0 005 0 127 mm 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting NOTE The correct orientation of the tapered roller bearing Make sure the bearing bottoms out on the shaft NOTE The cover side of the input pinion and shaft is the end of the shaft that is shortest to the gear face The main housing side of the input pinion and shaft is the end of the shaft that is furthest from the gear face Input Pinion and Shaft Assembly 15 Using an appropriate driver and press press the tapered roller bearing onto the input pinion and shaft E I fi ie L 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs ma
74. ecrease turn adjustment screw counter clockwise 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation 5 7 Main Valve Bank The main valve bank controls the functions of rotation fast feed main line hoist and wireline hoist These functions are protected from pressure spikes by a quick response relief valve located in the inlet section of the main valve bank This is factory set at 3600 psi 24 8 MPa which is 100 psi 0 7 MPa above the pressure compensator setting of the primary pump If the relief valve in the main valve bank ever requires adjustment first uncouple one of the main quick couplers at the head rotation start engine and engage rotation direction control lever This will dead head the main pump Ensure that the primary pump pressure compensator has been correctly adjusted to 3500 psi 24 1 MPa as detailed in the previous section Next slowly wind out counterclockwise the relief valve adjusting screw until the diesel engine begins to labour heavily this signals that the relief valve setting has reached the pump compensator setting and oil is now passing over the main relief valve instead of the pump compensating Once this occurs wind the relief valve in clockwise half a turn This will set the main valve bank relief valve approximately 100 psi 0 7 MPa
75. eference the model and serial number of the product as well as part number and quantity reason for return Once the return is approved you will be issued an RGA Return Goods Authorization number to track your claim DO NOT attempt to ship parts until you receive an RGA number and shipping instructions otherwise we have no way to track your claim for returned goods Boart Longyear will not be held responsible for any parts shipped without a return good authorization number e All parts for return are subject to incoming inspection and minimum re stocking charge of 20 will apply e Special made to order or obsolete parts will not be accepted this includes small items such as nuts bolts and o rings e All parts must be returned prepaid 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Standard Warranty Boart Longyear Inc makes no warranty that the products sold hereunder shall be merchantable or that such products shall be fit for any particular purpose and there are no warranties expressed or implied made by Boart Longyear Inc except its following standard warranty Boart Longyear Inc warrants each product and accessory equipment sold by it except items not manufactured by Boart Longyear Inc such as power units pumps and other trade accessories sold with attached t
76. em require maintenance This auxiliary pump has a small internal charge pump located inside the main case to make up any losses in the system The charge pump has an internal relief valve Adjustable Tensioner Output from the auxiliary pump is directed to a two speed pilot shift motor which powers the fluid pump Return oil from the hydraulic motor is directed back into the inlet of the auxiliary pump hence the totally closed loop system Because of this design the internal charge pump is essential to make up for losses from the case drain etc This pump has a relief valve cartridge set at 2000 psi 13 8 MPa to prevent the fluid pump motor from being over pressurized as well as limiting the demand on the timing belt driving the pump Output of the auxiliary pump is determined by manually altering the swash plate angle of the unit by a throttle cable Because the fluid pump only 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation requires propulsion in one direction the relief valve cartridge is removed from the opposite port By doing this if the swash plate is returned over centre the pump will not begin to rotate in the opposite direction NOTE actual equipment may notbe exactly as shown Case Drain Return Circuit All hydraulic pumps and motors with exte
77. en starting up in sub zero temperatures 82 F 0 C Weight Complete with hoses wet including hydraulic oil 920 Ibs 417kgs Oil Volume operating level 30 U S Gallon 114 Litres 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 111 Control Panel WATER PRESSURE ROD TORQUE GAUGE GAUGE BIT WEIGHT SA GAUGE WIRELINE FEED PRESSURE KO HOIST GAUGE o Te fener a ie o o o MAIN LINE RAISE Ere 6 ay LOWER P Q WF RIIS rast FEED NI 1 gt LOWER HEAD ROTATION FORWARD REVERSE WATER PUMP gt THROTTLE D FEED RATE CONTROL Q Mast q UP k MAST RAISING CYLINDER DOWN gt ADJUSTMENT CONTROL BAS FEED PRESSURE T REDUCING CONTROL J 49 MUD MIXER CATHEAD FLOW CONTROL FEED UP Sys SS DOWN 42 p 18 FOOT CLAMP ADJUSTMENT CONTROL AUXILIARY 44 10 Ca D OFF a ROTATION SA SPEED FOOT CLAMP S S 4LOSED OPEN SN A CONTROL a HYDRAULIC CHUCK ADJUSTMENT FLUID FILL CAP CONTROL CARTRIDGE TWO SPEED WATER PUMP CONTROL NOTE Actual equipment may not be exactly as shown a a a l 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price
78. enced under no circumstances should any person or part there of get under or perform any work in that area until the mast raising is complete as detailed in this section and the tower firmly secured by the mast support legs During the raising operation double check that no hoses fittings or cables are hanging up or getting caught Continue to raise the mast by holding the lever in the forward position away from the operator until the tower is in the vertical position with the lower section of the lower mast assembly resting against the drill base In this position the mast is slightly over centre Stop the diesel engine NOTE Actual equipment may not be exactly as shown Item 11 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations 421 12 13 14 15 16 17 18 Once the mast has broken over centre with the lower mast section resting against the drill base release the outside ie furthest away from the control panel mast support leg from its retaining bracket on the lower mast section and position it in its respective bracket on the rear of the drill base Secure the clamping jaw firmly Once the mast is firmly supported in a vertical position by the outside mast support leg remove the inside mast support leg from its retaining b
79. eog LT ON LYYd Hydraulic Schematic is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 2005 Boart Longyear Inc Boart Longyear QBOART LONGYEAR i NE Electrical 6 2 Electrical Schematic 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Electrical Schematic Alarm Bypass White 10 ga L N C Contact al Pir Ignition Switch 956 3125 Ground to In Line Hinge Plate Fuse Bolt Black 12V Red Alarm 9 Pollack Connector Female Control Panel Ref 101089 Engine Ref 102365 eS 20 AMP raes Circuit Starter Oil Pressure Terminal Strip Jace Breaker Gauge oo Solenoid Note Set Shut Down T Deutz 20 PSI Biain Cummins 15 PSI Note Set Shut Down Optional Tach Pick up Deutz 250 s Temp Cummins 225 a za z a White CHARGE INDICATOR To Ground Ground crab Pane SHROUD Post Green V Belt Switch Spare fo o Deutz Engine Only 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice amp BOART LONGYEAR N General Maintenance and Trouble Shooting 7 2 D
80. er Drive the first oil seal down till it bottoms out on the bottom of the counter bore in the lower seal carrier Place the second oil seal lip up into the lower seal carrier Drive the second oil seal down till it is flush with the top of the counter bore in the lower seal carrier 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 106 NOTE Check the gap between the two seals to ensure that the grease access port is clear _ oe rease fitting 8 ORB plug and the 1 4 NPT plug Install the 1 8 NPT g in the lower seal carrier Pack the oil seals with a multipurpose EP2 grease bead of RTV high temp sealant just inside the bolt circle and the lip of the lower seal carrier 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 107 Install the lower seal carrier with the notch in the proper location so as to allow access to the main housing 3 4 NPT return port Use eight 1 2 UNC x 1 1 2 bolts and lock washers to fasten the lower seal carrier to the main housing Torque to 50 Ibfeft 67 79 Nm in a crosshatch tighteni
81. er removing the input carrier remove the shim pack from inside the input shaft bore 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 25 Check to make sure all shims are located NOTE It may be required to instal 26 Remove inner lock ring from the spindle a 3 8 UNC x 3 4 bolt in one of the existing bolt holes on the inner lock ring to assist with removal The spindle thread is a right hand thread 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting NOTE If problems persist in the removal of this cone bearing you may want to leave it on It will drop off the spindle by itself during removal of the main housing cover NOTE Blocks must not interfere with the removal of the spindle 2 7 Remove the bottom cone bearing from spindle 28 Ifthe bearing is removed at this time remove the large snap ring from the spindle This is the snap ring that holds the output gear in place 29 Using the appropriate lifting devices lift the PQ head and rotate it so spindle is vertical to the work bench Lower PQ head down on blocks so that it i
82. er the diesel engine rpm to about half then wind the rotation speed control counterclockwise to reduce the drill string rom Next feather the rotation control level back to neutral making sure the reverse lockout is in position to prevent the lever from going into reverse 4 Use the fast feed lever to raise the drill head to break the core and pull the bit at least 12 in 30 5 cm off bottom 5 Allow the fluid pump to flush the hole for about 5 minutes before turning the water pump throttle completely clockwise to stop the fluid pump 6 Place the auxiliary selector in the off position 7 Reduce the diesel rom and allow the unit to idle for 5 minutes This is very important It allows the turbocharger sufficient time to slow down prior to stopping the engine 8 Turn the ignition switch counterclockwise to the off position to stop the diesel engine A WARNING yan emergency shutdown is required depress the EMERGENCY STOP immediately regardless of the drilling operation NOTE Actual equipment may not be exactly as shown Deutz 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations Lowering the Mast Hydraulic Mast Raising Version CAUTION Under no circumstances should any individual or part there of be directly underneath the mast when a
83. erefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 33 35 Assemble the chuck spindle adapter onto the spindle flange This has a pilot fit bore Using blue Loctite 262 secure the eight 3 4 x 1 1 2 UNC cap screws to a final torque of 250 ft Ib 840 Nm This should be accomplished using a cross hatch pattern and done at intervals of 75 ft Ib 102 Nm 180 ft lb 244 Nm and 250 ft Ib 840 Nm 36 Fit the chuck cylinder adapter plate to the top spindle bearing cap This has a pilot fit bore so ensure it is started evenly Place the four spacer tubes under the adapter plate and use four 1 2 x 3 1 2 UNC bolts and lock washers to secure the adapter plate to the four tapped jacking holes in the top spindle bearing cap Torque the four UNC bolts down to 50 ft Ib 68 Nm using a cross hatch pattern in incremental steps Item 36 37 Fit the three dowel pins from the auto chuck adapter kit to the chuck cylinder adapter plate 38 Place the auto chuck cylinder on the adapter plate ensuring that it is properly located on the dowel pins 39 Fit the auto chuck cylinder clamps to the base of the auto chuck and secure to 30 ft Ib 40 Nm Item 39 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without no
84. g Conversion factors have been used to convert from Imperial to Metric measures Boart Longyear Inc is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 2006 Boart Longyear Inc TECH DATA No 8 TECHDATA MKT1617 Date January 2007 Page 8 of 10 LF70 Diamond Core Drill System DIMENSIONS AND WEIGHTS HQ Drill Head c w Nitro Chuck Dry Weight 376 kg 860 Ib 749 mm 29 5 in PQ Drill Head c w Nitro Chuck Dry Weight 580 kg 1279 Ib 1374 8 mm 54 1 in Diesel Engine Module Deutz BF4L914 Tier Il Dry Weight 496 kg 1094 Ib 1245 mm 49 in 762 mm pon 30 in Dimension and weights are nominal and should be checked before crating or lifting Conversion factors have been used to convert from Imperial to Metric measures Boart Longyear Inc is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 2006 Boart Longyear Inc TECH DATA No 8 TECHDATA MKT 1617 Date January 2007 Page 9 of 10 LF70 Diamond Core Drill System DIMENSIONS AND WEIGHTS Cummins 4BTA 3 9 Tier Wet Weight 510 kg 1124 Ib m 41 in i ic y P eet r BARS ACETRE TEE s Lt 1041 mm l 1H ora slat OS L p Fluid Circula
85. g an appropriate sling or chain method sling the housing cover in such a manner that it can be lifted vertically while being balanced and level 22 Lower the housing cover onto the four line up pins letting the cover down slowly so as to rest square and level on the top of the intermediate shaft 23 Using a suitable washer or bar and appropriate 1 2 UNC bolt draw the cap down evenly to the face of the main housing 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 84 24 Coat the beginning of the thread on all 18 1 2 UNC x 1 3 4 capsrews with RTV high heat sealant Install the capscrews and torque to 50 ft Ibs in a cross hatch pattern NOTE Runa bead of RTV high heat sealant between the top edge of the intermediate idle shaft and the mating bore chamfer of the main housing cover 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 85 Jack Sc p ea AR Ne 25 Install the five 1 2 UNC x 3 4 set screws One in each of the four jack screw locations and one in the center of the intermediate shaft This will protec
86. gyear Technician 0 00O Ensure that all commissioning checks and adjustments have been thoroughly carried out before operating the machine Ensure the drill is level and properly anchored before use Do not change or alter the drill its components optional equipment or accessories without prior approval from Boart Longyear Inc Unauthorized alteration may void the warranty render the equipment unsafe or result in decreased performance Before operating any controls be certain you know what function they control and the ramifications of that function Before operating any hoist ensure the rope is free and clear to travel When hoisting lowering rods make sure the hoisting cable is in complete tension before releasing the chuck For additional information on training or start up contact your Boart Longyear representative Do not use multiple part lines on the main hoist of the drill Ensure that all commissioning checks and adjustments have been thoroughly carried out before operating the machine Always wear a full body ladder climbing harness with the shortest possible lanyard attached to a certified fall arrestor system while working on the platform Be aware of the travelling hoist plug at all times Be careful not to drop any tools when working on the platform Never exceed the rod rack derating weights NOTE See following page for safety decals that appear on the machine Important Safety Information B
87. hange designs materials specifications and price without notice Hydraulic Explanation 5 24 Rod Clamp Selector Valve This two position detented selector valve will open or close the foot clamp Moving the lever forward closes the clamp pulling the lever back towards the operator opens the chuck Comes with a mechanical lever lockout device to prevent accidental actuation of selector valve Lift to shift lever to open close the foot clamp a m lt m w e Ty i F E Rod Clamp Selector Valve Rotation Speed Control The fourth section when viewed from the operator s stand of the secondary circuit manifold is dedicated for the rom control of the rotation motor A pilot pressure from the rotary control strokes the lens of the hydraulic motor swash plate Hunting isn t a problem as the pilot pressure we are using is taken from the secondary circuit If we were sourcing the pilot pressure from the primary circuit then surging would be induced through down hole torques This control has an orifice which keeps the secondary pump compensated and reduces flow to the rotation motor control This valve is adjustable from 25 400 psi 0 2 2 8 MPa while the hydraulic rotation motor control is set from 50 200 psi 0 3 1 4 MPa a CO Re PE Ls Bn eg EEE TA Rotation Speed Control At pressures above 400 psi 2 8 MPa this valve will vent to tank As the flow involved is only 0 5 gpm 2 L mi
88. he core barrel guide the water swivel or hoisting plug into the rod slide when doing this above the drill head 5 Depress the main hoist lever to lower the core barrel assembly into the casing 6 Securely clamp the core barrel above the casing adapter collar or foot clamp 7 Remove the water swivel or hoisting plug from the core barrel and attach to drill rod 8 Close drill head attach drill rod to core barrel and close the chuck 9 Remove core barrel clamp 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice CEART LONGYEAR M Rod Guides Both the middle and upper mast sections have rod guides which are activated by cable from the operator s platform This helps thread joint alignment when adding or removing rods from the hole Stacking Drill Rods The lower end of rod should be placed on a suitable wooden platform covered with a heavy rubber mat located beside the drill Stack the rods in lengths at an angle slightly steeper than the mast angle to ensure that they remain secure against the rod rack under their own weight 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations 429 Force on Diamond Bit The for
89. he following are recommended guidelines and practices to help prolong the life of your newly obtained Boart Longyear mast Enclosed is a checklist for a visual inspection which should be done every 1000 hrs of operation Inspections may have to be done more often when operating in extreme environmental conditions Make copies of the checklist for each inspection The checklist should be signed and filed for future reference Safeguards Operator shall be familiar with the equipment and its proper care If adjust ments or repairs are necessary or if any damage is known the operator shall report the details promptly to an appointed person and shall notify the next operator upon changing shifts In the mast erecting and lowering operations ensure that the drill is se curely anchored first A slow practical operating speed should be used during this function at all times There is no way of judging the remaining strength of a rusty cable there fore rusty cable lines must be replaced immediately Areas adjacent to end connections should be examined closely for any evidence of corrosion Design modifications or welding to the mast weldments is prohibited These modifications could result in weakening of the mast members and therefore possibly causing a structural failure later 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials spe
90. he spring applied brake off and also the pilot check valves open This scenario would not allow correct hoist brake functioning and the hoist may not hold the rods from falling back down the drill hole CAUTION when hoisting or lowering rods make sure the main hoisting cable is in tension before opening the chuck Failure to do so could result in the hoist slipping and the rods dropping uncontrollably Damage could result to the hoist and chuck Personal injury could result A simple method of ensuring all oil is bled from the hoist circuit is to observe the bit weight gauge on the control console When this drops to zero there is no residual pressure in the hoist circuit Hoisting can now be undertaken with the spring applied brake and pilot operated check valves controlled from the main line hoist lever on the main valve bank and not the fine feed circuit When in the drilling mode the main line hoisting cable is connected to the water swivel bail A slight tension is kept on the cable to prevent rod whip above the drill head During drilling operations with the drill head feeding down a means of allowing the hoisting cable to unspool under tension has been incorporated into the main line hoisting circuit When fine feeding down selector valve is in down direction and feed rate flow control valve is partly open or in the drilling mode a signal is sent to a shuttle valve mounted in the hoist motor manifold
91. heir traveling position do not remove completely Accomplishing this step prior to raising the mast will avoid any unnecessary delays in securing the mast support legs once the tower has been raised 8 Prior to raising the mast make sure that all hoses fittings and cables are free and will not get caught on anything during the raising operation 9 Slowly begin to raise the mast by moving the mast raising control lever forward away from the operator Raising the mast should be accomplished in a gentle smooth fashion Avoid jerky and erratic stop and start motions 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations A WARNING once mast raising has commenced under no circumstances should any person or part there of get under or perform any work in that area until the mast raising is complete as detailed in this section and the tower firmly secured by the mast support legs During the raising operation double check that no hoses fittings or cables are hanging up or getting caught 12 13 14 15 16 Continue to raise the mast by holding the lever in the forward position away from the operator until the tower is in the vertical position with the lower section of the lower mast assembly resting against the drill base In this position the ma
92. hout notice Primary Circuit AX CAUTION ifthe gate valves are ever closed to perform any work on the hydraulic system ensure they are fully opened and resealed in that position with the hydraulic reservoir topped to correct level before operating the drill Use only the correct grade of clean hydraulic oil from uncontaminated containers to refill the reservoir Hydraulic Explanation Rotation Fast Feed Main Line Hoist Wireline Hoist The primary pump is of a variable displacement axial piston pressure compensated design with a low pressure standby This is directly driven through a toothed gear on its input shaft which is powered by a composite adapter plate flywheel coupling bolted to the flywheel of the diesel engine This pump features a 2 50 mm inlet hose which is connected to a gate valve on the hydraulic reservoir This gate valve allows the operator to isolate the hydraulic reservoir fluid should he wish to work on a particular section of the circuit All three gate valves are sealed with a cable tie in the open position when the LF70 leaves the factory Gate Valve The internal inlet of the hydraulic reservoir for the primary pump features a 100 mesh strainer which is fitted with a 3 psi 20 kPa vacuum bypass valve This will allow a full flow of oil to the primary pump if the strainer becomes clogged or when starting in extremely cold climatic conditions The strainer is removable and can be
93. ic gear pump and remove the pump and oil pump drive shaft 2 em aT La BD ara ee Wr EA of a 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 16 13 14 15 16 17 Remove the hydraulic oil suction filter with a strap wrench Remove the hydraulic oil suction filter housing from the base of the head box Back off the drive head chain tensioning hex lock nut and adjusting square head set screw Remove the four locknuts securing the final drive pinion carrier plate Attach a combination bearing puller slide hammer to the hydraulic gear pump mounting holes and remove the final drive pinion carrier plate by the action of the slide hammer 18 19 20 21 22 23 ltem 17 Stand the rotation unit group in the upright position ie with the chuck in the vertical plane Remove the two bolts attaching the rotation motor flange to the adapter box and remove the rotation motor by withdrawing it upwards Remove the rotation motor adapter shaft Remove the four all steel locknuts securing the 4 speed Funk transmission to the head box Remove the 4 speed transmission and adapter shaft housing by raising these clear of the head box Lay the drive head assembly in the horizontal position with the f
94. ice without notice General Maintenance and Trouble Shooting CAUTION Using an appropriate driver drive the wear sleeve down till it rests on Take care as the shoulder of the beginning of the second threaded portion of the not to damage spindle threads spindle while installing the wear sleeve Place the second wear sleeve lip up over the first threaded portion of the spindle 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting CAUTION Fake care as Using an appropriate driver drive the wear sleeve down till it is tight against the first wear sleeve not to damage spindle threads while installing the wear sleeve CAUTION Care must be Using a utility knife re score the existing score lines of the two wear take to avoid personal injury and sleeves external damage to the wear sleeves in this part of the assembly procedure The re scoring of the wear sleeves ensures a good clean break of the wear sleeve lip Any sharp jagged edges will cut the seals of the lower seal carrier upon installation 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and T
95. id oil seal damage and the addition of any debris inside the main housing NOTE Observe correct orientation of the cone bearing 34 Using the proper lifting devices lift the PQ Head off the blocking and rest it on the work bench Install the snap ring in the snap ring grove in the splined portion of the spindle 35 Coat the bottom spindle bearing race and spindle threads with a film of oil Install the bottom spindle cone bearing 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 101 NOTE By using two 3 8 0 95 cm UNC x 5 12 7 cm bolts installed at 180 apart on the inner lock ring bolt circle the lock ring can be threaded onto the spindle pressing the cone bearing on the spindle square and inline CAUTION Should be exercised so as not to damage the threaded section of the output shaft With the aid of the inner lock ring the cone bearing can be installed on the spindle Tighten the inner lock ring until the cone bearing is seated in the bearing race on the main housing 37 Clean and coat the original shim pack for the input pinion and shaft with a film of oil Install the shim pack in the input pinion and shaft bore of the main housing 2005 Boart Longyear Inc Boart Longyear is
96. indle keyways occurs 29 30 Item 28 Next lock the final drive driven sprocket internally with a wedge or a new aluminium block 1 x 2 x 4 Ig 2 5 cm x 5 cm x 10 cm to prevent the spindle from turning as the nut is tightened with the tool While keeping tension on the spindle nut tool to prevent the aluminium block that is locking the final drive driven sprocket from dislodging begin tapping the tool handle with a 5 Ib 2 kg hammer to seat the bearing cone 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 30 When alignment occurs the nut should be quite firm when the hammer strikes the spindle nut tool Item 30b When the spindle nut is firmly secured end play on the spindle should be between 0 0005 to 0 0030 0 012 0 070 mm To check the end play place the drive head assembly in the upright position and support the head box with a block of wood Make sure the bottom of the spindle is clear of the work bench Attach a magnetic base dial indicator to the head box near the front service plate port Place the indicator probe on top of the spindle flange Now place a pinch bar under the spindle and work the pinch bar up and down while supporting the head The amount of end play can now be measured on the dial in
97. ing a cross hatch tightening pattern 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting NOTE The 1 4 0 64 cm NPT port must be on your right hand a bead of RTV high heat sealant inside the bolt circle Install the pump side as viewed from the front of the mounting cover main housing 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting Install the six 1 2 UNC x 1 1 2 bolts and lockwashers Torque to 50 Ibfeft 67 79 Nm using a cross hatch tightening pattern 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 100 NOTE That the spindle is horizontal to the work bench NOTE Care must be used during this procedure so as not to damage the oil seals in the output carrier The spindle is not secured in the PQ Head and may be dislodged NOTE The output gear may have to be tapped back tight against the output spacer and spindle bearing 44 CAUTION Avo
98. ing the chain tensioner adjust the chain to obtain 0 625 to 0 875 15 9 mm to 22 2 mm of play Tighten the four lock nuts on the Funk transmission and torque the four lock nuts on the pinion carrier to 50 ft lbs 68 Nm 52 After adjusting chain the appropriate tension lock the adjusting setscrew in position with the lock nut 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 40 53 54 Next lubricate the oil pump drive shaft with lithium based grease and insert it into the final drive pinion carrier plate Make sure the male drive end engages into the pinion sprocket drive shaft When correctly positioned the oil pump drive shaft extends approximately 0 050 1 3 mm past its bushing Apply RTV silicon sealant to the flange of the hydraulic gear pump and secure this to the final drive pinion carrier plate with four 5 16 x 3 4 UNC bolts and spring washers The correct orientation of the hydraulic gear pump is with the ports at 90 degrees to the horizontal axis of the head box With the drill head laying on its back the larger suction port is closest to the front service opening of the head box D9 Item 54 Check the driven head chain tension through the bottom chain link service port using a ruler The amount of play in the
99. ing to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting NOTE Make sure that the oil seal Install the second oil seal lip up Drive the oil seal down to a is installed square and not blocking measurement of 1 25 4 mm the grease fitting port Install the 1 8 NPT grease fitting It must be installed in the proper hole location so that grease enters between the oil seals and not into the main housing cavity 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting Install the 1 8 NPT plug Apply a bead of RTV high heat sealant to the flange area of the output carrier just inside the bolt circle 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 31 Apply a film of grease to the chuck adapter flange on output spindle b pee W i 32 Install the output carrier with the 1 4 NPT port to the front of the main housing Install the eight 1 2 UNC x 1 1 2 bolts and lockwashers Torque to 50 Ibf ft 67 79 Nm us
100. ired but using an anti seize and torque to 35 ft lbs only install ten bolts leaving two i n 7 cheat taciiowiarineeiociment 14 Bolt the PQ chuck spindle item 1 to the shipping plate using 3 4 of a lifting device for ease and UNC bolts safety of further assembly OR Bolt the PQ chuck spindle item 1 to the head spindle using 3 4 UNC bolts supplied with the drive head module and torque to 280 ft lbs 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 118 15 Install the internal retaining ring item 29 in the PQ chuck spindle bore item 1 NOTE 16 Grease the PQ chuck spindle O D with grease item 39 Boart Longyear strongly advises the use of Chevron Ultra Duty Premium Grease Item 39 EP NLG12 as the only recommended grease for the PQ Nitro Chuck 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 119 19 Install bearing item 9 starting with lower thrust bearing race larger O D 20 Install bearing roller race Pack bearing with grease item 39 supplied 21 Install upper thrust bearing race
101. k the adjustment ranges from 650 to 850 psi 4500 to 5900 kPa Replace gauge plug on back side of PRD PRV valve Once set this should not be altered during normal operation 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation 526 A WARNING Demand or shock loading on the timing belt can be avoided by ensuring that the Swash Plate Contol is shifted to minimum flow before shifting the two speed motor control or shutting down the drill Auxiliary Circuit This circuit powers the hydraulic driven fluid pump and is a fully hydrostatic drive ie it is a totally closed loop system The pump for this circuit is an axial piston design with a manual swash plate control Hydraulic Pump Fluid Pump Pump Adaptor Flange The pump is mounted to the aluminum pump adapter flange which is bolted to the diesel engine bell housing Drive for this pump is via a toothed timing belt which is powered from a gear located behind the toothed adapter on the drive shaft of the primary pump An adjustable tensioner keeps this timing belt correctly loaded The suction inlet for the auxiliary pump features a 100 mesh strainer located inside the aluminum hydraulic reservoir with 3 psi 20 kPa vacuum bypass valve and an external gate valve to isolate the reservoir should the syst
102. l and firmly supported by the four leveling jack legs i e not resting on the wheels if these are left on the base If there is any doubt that some weight may be on the tires remove them to ensure the four leveling jack legs are supporting the drill in a level manner Use timber planks under the four leveling jack legs if necessary 2 Add the required mast sections either upper and middle or upper only and make sure they are firmly secured with their respective mounting bolts 3 Route the main line hoist and wireline hoist cables through the sheave wheels of the crown block assembly making sure to replace the cable retaining spacers and bolts 4 Secure the overshot and hoisting plug if connected or main line hoist and wireline hoist cables to the mast to prevent them from falling during the raising operation 5 Start the drill as described in the previous section and stroke the drill head the entire length of its stroke up and down a few times To accomplish this raise the fast feed lever to stroke the drill head to the extended position and push the fast feed lever down to lower the drill head towards the base of the mast This will eliminate any entrapped air from the feed cylinder which will allow for a smooth mast raising 6 Loosen the four bolts on the mast swivel mounting blocks do not completely unscrew loosen only two turns 7 Before raising the mast loosen the capscrews which hold the mast support legs in t
103. l Maintenance and Trouble Shooting 6 Check the drive head chain tension through the top chain link service port using a ruler The amount of play in the chain at the service port should be 1 2 to 3 4 1 to 2 cm up and down total This should be undertaken using hands only and not prying with a screwdriver or levers Item 6 If necessary adjust the drive head chain tension with the adjusting set screw on the final drive pinion carrier plate as follows a Loosen the four 1 2 all steel locknuts on the final drive pinion carrier plate ltems 6a and 12 b Loosen the four 1 2 all steel locknuts which secure the Funk transmission c Adjust the drive head chain to the correct tension using the adjusting set screw on the adjuster block against the final drive pinion carrier plate Once achieved lock the adjusting set screw in position with the hex locknut See photo Item 6a and 12 d Tighten the four final drive pinion carrier plate all steel locknuts prior to tightening the four Funk box all steel locknuts e Once the four Funk box all steel locknuts are snug loosen the four final drive pinion carrier plate all steel locknuts then retighten them to 90 ft Ib 122 Nm f Ensure the correct drive head chain tension has been maintained then loosen and retighten the four Funk box all steel locknuts to 90 ft Ib 122 Nm 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must
104. l the Funk transmission assembly to the correct level with engine oil level and vertical when checking oil original factory fill quantity is 8 quarts U S or 7 5 L Refer to page level 9 05 for a list of lubricants With head assembly in the vertical position and no spindle rotation the maximum or full level will be when oil reaches the 4a CAUTION Don i oil level plug located on front face of transmission This oil level can also be rari Todo cowiirosukin monitored through the clear tubing on the back side of the head assembly overheating Oil Level Plug Clear Tubing syyrryhs 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting Refill the Main Line Hoist KPL 12 to the correct level with gear oil original factory fill quantity is 2 quarts U S 1 9 L Refer to page 7 11 for a list of lubricants Filling is done by removing the 3 8 pipe plug on the drum or at the centre of end bracket The maximum or full level will be when the oil reaches the oil level plug located on the centre of the end bracket End Bracket Ref 3 8 Pipe Plug 3 8 Pipe Plug
105. lacing OK Anchor and Deadman Replace a OK 7 Bolt Connections All bolted connections are to be inspected tightened and missing parts replaced or visibly marked as missing or damaged and in need of repair All connections found to be satisfactory as checked and loose bolts tightened OK All connections visually inspected and spot checked for tightness and no further OK bolt tightening or repairs necessary 8 Substructures for Mast Damages Minor Major OK Corrosion Minor Major OK Condition Connections Worn Cracked Welds OK Safety Pins Missing OK 9 Mast Raising and Angling Cylinders Condition Oil Leaks Hose Tubing Damage 10 Summary of Inspection Appearance Good Fair Poor Repairs Needed None Minor Major Number of Missing Parts 11 List of work to be completed Signature Date Ref No 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice GQECART LONGTEAR an crea aaa Pre Start Check List 1 Check diesel engine oil level 2 Check all fluid levels Refer to Lubrication Chart page 9 05 for lubricant types and quantities
106. m ae 15 in sq Dimension and weights are nominal and should be checked before crating or lifting Conversion factors have been used to convert from Imperial to Metric measures Boart Longyear Inc is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 2006 Boart Longyear Inc
107. mp 11 Closed Wireline hoist lever 4 Neutral central position Rotation speed 17 Fully counterclockwise slow Feed rate 22 Fully clockwise off A WARNING Water pump throttle 16 Fully clockwise off n eae Drill head gear selector Neutral functions Feed pressure reducing control 20 Fully clockwise max gruo Ome BIT WEIGHT THROTTLE eau Ce Host RAISE LOWER 3 MAIN LINE RAISE LOWER 2 FAST FEED RAISE LOWER HEAD ROTATION FORWARD REVERSE WATER PUMP THROTTLE gt FEED RATE x MAST RAISING CYLINDER 7 amp ADJUSTMENT CONTROL XS Are A FEED PRESSURE gP N REDUCING CONTROL 3 ex J MUD MIXER CATHEAD a O FLOW CONTROL Ca NN UP S t Down O S SY FOOT CLAMP G0 LB ADJUSTMENT CONTROL AUXILIARY q nasi OFF ton CHUCK IJ 5p SPEED FOOT CLAMP P CLOSED eae ta IN fF a7 SORTA OPEN 5 gt CHUCK ADJUSTMENT HYDRAULIC CONTROL CARTRIDGE FLUID FILL CAP TWO SPEED WATER PUMP CONTROL 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations CEED 3 Turn the engine throttle 9 two turns counterclockwise 4 Turn the engine ignition switch clockwise to the on position then to start When the engine starts release the switch which will now return to the on position Next adjust the engine throttle
108. n heat generation is minimal Chuck Mode Selector Valve This ts the final section on the secondary circuit manifold and controls the opening and closing of the hydraulic Auto Chuck A four way two position detented valve controls the oil flow direction for this function Comes witha 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation ea O NOTE Before making any adjustment to this PRD PRV valve check mechanical condition of chuck i e clean and grease sliding surfaces between chuck jaws and surrounding parts mechanical lever lockout device to prevent accidental actuation of selector valve Lift to shift lever to open close the chuck Sandwiched below this valve is a pressure reducing valve PRD and pressure relief valve PRV If adjustment is necessary proceed as follows Install a pressure gauge 0 1000 psi 0 6900 kPa in place of the 1 4 NPTF plug located on the back side opposite cartridge adjusting screw of PRD PRV valve 1 4 NPTF Plug Cartridge Adjusting Screw PRD PRV Valve With the selector shifted to open the hydraulic chuck turn the cartridge adjusting screw in clockwise to increase pressure setting JUST to the point where the hydraulic chuck will fully open not beyond this point and tighten locknut For Auto Chuc
109. n be increased by 24 7 cm 9 75 in by adjusting legs downwards 1466 mm 57 75 in 1834 mm 52 5 in Y 6407 mm l lt j 252 25 in 102 in 699 mm 27 5 in Dimension and weights are nominal and Should be checked before crating or lifting Conversion factors have been used to convert from Imperial to Metric measures Boart Longyear Inc is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 2006 Boart Longyear Inc TECH DATA No 8 TECHDATA MKT1617 Date January 2007 Page 6 of 10 LF70 Diamond Core Drill System DIMENSIONS AND WEIGHTS Rear End View of Drill includes all mast sections Wet Weight 2948 kg 6500 Ib call ak RZ 1334 mm NOTE Base dimensions are with mechanical stabilizer legs at the uppermost position Overall height can be increased by 24 7 cm 9 75 in by adjusting legs downwards Hydraulic Module Wet Weight 417 kg 920 Ib lela sl lale Ox f FAE jee ke AmE O i ne a on ar N r 3 3 ff 737 mm 49 5 in 29 in Draw Works Module KPL12 Weight 450 kg 992 Ib without cable lt Ssn Cable Weights Main Line Hoist Cable 15 9 mm x 22 9 m 0 63 in x 75 ft single part line 26 kg 58 Ib Wireline Hoist Cable 4 8 mm x 1280 m 0 12 in x 4200 ft 118 kg 260 Ib Lengths above d
110. n cable FEED CYLINDER Pull Capacity 2000 psi 6414 kg 14137 Ibf Thrust Capacity 2000 psi 4231 kg 9326 Ibf Boart Longyear Inc is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 2006 Boart Longyear Inc TECH DATA No 8 TECHDATA MKT1617 Date January 2007 Page 5 of 10 LF70 Diamond Core Drill System DIMENSIONS AND WEIGHTS Side view of drill with mast in vertical position Dimensions Deduct 3235 mm 127 4 in if Middle Mast section is removed NOTE Base dimensions are with mechanical stabilizer legs at the uppermost position Overall height can be increased by 24 7 cm 9 75 in by adjusting legs downwards Wet Weight 3220 kg 6500 Ib 384 25 in Consists of Deutz BF4L 914 Power Unit Grp Tier Il Hydraulic Module Draw Works Grp c w Cable Lower Mast Assembly Middle and Upper Mast Assembly Rotational Unit Grp c w Nitro Chuck Base Frame Bare Fuel Tank Wet Cap 15 USG Battery Stabilizer Legs x 4 Operator Platform 2590 mm 56 25 in 102 in 1429 mm Side view of drill with mast in horizontal position Dimensions Deduct 3235 mm 127 4 in from overhang if Middle Mast section is removed Wet Weight 3220 kg 6500 Ib NOTE Base dimensions are with mechanical stabilizer legs at OOO eR the uppermost position Overall height ca
111. nce and Trouble Shooting 1 37 Once the final drive pinion carrier plate has started evenly with the O ring remaining in place pull the plate into position with the four 1 2 all steel UNC locknuts Item 46b 47 Place the Funk transmission in neutral and rotate the drive gear by hand to ensure the final drive pinion sprocket bearings are not binding ltem 47 NOTE The following step may be 48 Refit the drive head chain tensioning square head set screw and hex omitted if the wire was installed as nut but do not adjust ie the drive train assembly should be as close described in step 17 to the spindle as possible 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 38 49 Feed a thin piece of wire through the front of the head box service door and around the final drive driven sprocket Continue to feed the wire around the final drive pinion sprocket so that both ends of the wire end up protruding through the head box front service opening Item 49a Attach the drive head chain to the end of the wire which wraps around the final drive driven spindle sprocket Tie the wire to one shaft of the master link and install the other shaft of the master link in the chain Keep tension on the other end final drive sprocket of the wire
112. ndle bearing cap Ensure the wear sleeve is in place as shown 1 1 4 82 mm from the bottom of the spindle nut The seal should be started evenly and tapped home with a soft hammer When correctly seated the seal is flush with the bottom of the spindle bearing cap Oil Seal Spindle Nut 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 36 ltem 44 45 Refit the bottom rod bushing guide plate to the bottom bearing nut using four 3 8 x 3 4 UNC cap screws Using a gear puller remove the two original bearings off the pinion carrier Using an arbour press or soft faced hammer install the new bearing 46 Fit a new O ring to the final drive pinion carrier plate and install this onto the four studs on the bottom of the head box As this is a piloted fit the final drive pinion carrier plate will have to be tapped into position When doing this ensure the O ring does not become dislodged A small smear of grease on the O ring should hold it in place Item 46a 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintena
113. ne hoist is protected from overrun by a counterbalance valve which is located on the motor exhaust oil port when in the lowering mode This valve is in the closed position when the wireline hoist lever is in the neutral position which isolates the wireline hoist motor A positive pressure is required from the lowering side of the spool to open the counterbalance valve and allow a load to be lowered If the load begins to overrun the hoist ie when lowering an inner tube assembly into a dry hole on the overshot the counterbalance valve will close preventing the load from running away 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation 544 Primary Circuit Return Oil Return oil from the primary circuit rotation fast feed main line hoist and wireline hoist valve functions is directed to a thermal metering valve Main Return Line Filter Thermal Valve When the oil is below operating temperature this valve is closed and directs the oil to the main return line filter When hydraulic oil temperature rises to 100 F 88 C the thermal valve begins to open and redirects oil to the heat exchanger Full flow through the thermal valve to the heat exchanger is achieved at 140 F 60 C The thermal metering valve also incorporates a pressure relief valve which is designed
114. ng pattern 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 108 42 Puta bead of RTV high temp sealant around the flange of the service cover Put a bead of RTV high temp sealant around the thread of the four 5 16 UNC x 3 4 bolts Install the service cover and hand tighten bolts 43 Coat the remaining spindle thread with a film of multipurpose EP2 grease and then install the spindle nut Four 3 8 UNC x 3 4 capscrews are used in the spindle nut to secure desired spindle bushing 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 109 Transmission Assembly 44 45 46 47 44 CAUTION Do not force the transmission into place Line the transmission and main housing up and gently rock the transmission until it slides into place freely Position the transmission machined surface down and output shaft facing horizontal on the work bench Slide the splined adapter on to the spline of the output shaft with the machined O D of the splined adaptor against the transmission output shaft bearing Machined O D of Splined A
115. o or operated with Boart Longyear drills or other products to be free from defects in material and workmanship under normal use and service for 90 days from date of use but not to exceed 6 months from the date of shipment from a Boart Longyear Inc factory the obligation of this warranty being limited to the replacement or repair at a Boart Longyear Inc facility in Ontario Canada or at a point designated by it of such parts as shall appear to it upon inspection at such point to have been defective in material or workmanship at the time sold providing that the part or parts claimed defective are returned to inspection point transportation charges prepaid This warranty applies only to new and unused products and accessory equipment which after shipment from the Boart Longyear factory have not been altered changed or repaired in any manner Exclusion of Liability for Consequential Damages It is further agreed by the purchaser that in no event shall Boart Longyear be liable for increased costs loss of profits or goodwill or any special indirect incidental or consequential damages whatsoever 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drill Introduction 2 2 General Drill Arrangement 2 4 Tech Data 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve it
116. o not represent the max rated drum capacity they are typical values only Dimension and weights are nominal and should be checked before crating or lifting Conversion factors have been used to convert from Imperial to Metric measures Boart Longyear Inc is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 2006 Boart Longyear Inc TECH DATA No 8 TECHDATA MKT1617 Date January 2007 Page 7 of 10 LF70 Diamond Core Drill System DIMENSIONS AND WEIGHTS Lower Mast Section Weight 554 kg 1222 Ib 838mm 33 in 3467 mm 136 5 in Middle and Upper Mast Sections Combined Weight 363 kg 800 Ib Width ps oe 5 in 572 mm 22 5 in o a 3284 mm A 129 3 in FA ee Width ps OY 533 Io mm 21 5 in I lt lt 3302 mm ser 130 in Drill Base Bare 286 kg 630 Ib Wheel and Stub Axle each 51kg 112 1b Towing Hitch 25kg 55 b Fuel Tank wet 57 kg 125 Ib i t 260 mm 10 5 in Battery Box inlcuding battery 61 kg 134 Ib a mo e nr Mud Tank Outriggers each 12kg 26 lb Stabilizer Legs each 11kg 251b Operator Platform 12kg 26 lb a 2591 mm 102 in 1626 mm 64 in Dimension and weights are nominal and should be checked before crating or liftin
117. opposite cartridge adjusting screw of PRD PRV valve Sandwiched below this valve is a pressure reducing valve PRD pressure relief valve PRV With the selector shifted to open the PQ chuck turn the cartridge adjusting screw in clockwise to increase pressure setting to 1200 psi 8274 kPa and tighten locknut Replace gauge plug on back side of PRD PRV valve Once set this should not be altered during normal operation 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice PQ Head Disassembly Procedures NOTE It is recommended that the 1 head assembly be disassembled in a shop environment with the use of overhead lifting capabilities This will be required to move and support 2 the PQ Head 3 4 5 9 NOTE The silicone seal between the transmission and the input carrier will have to be worked apart in order to remove the transmission Open the chuck and insert the lifting bail which was supplied with the chuck Remove the spindle nut bushing Disconnect all hydraulic hoses to the rotation motor and chuck Drain the head and transmission of oil This can be accomplished by removing a return line hydraulic hose from the transmission The position of the drill feed frame will determine which hydraulic return line to remove Remove the head unit from the drill befo
118. ottom centre of head box aligns in its two respective bores on upper hinge support and lower hinge plate If the chain adjustment has affected the hinge pin alignment reposition the flat washers behind the upper hinge bore to regain correct alignment Item 56a gy BOART l LONGYEAR Yj Item 56b 57 Rotate the entire internal drive drill head components by hand to ensure the unit is free to turn and not binding anywhere 58 Apply RTV silicon sealant to the bottom chain link service cover and fasten this with four 5 16 x 3 4 UNC bolts and spring washers Coat the threads of the bolts with RTV silicon sealant to prevent leakage from the head box 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 42 59 Apply RTV silicon sealant to the front service plate and secure with the ten 10 24 1 2 machine screws cap screws Seal the threads of these with silicon to prevent leakage from the head box Item 59 60 Apply RTV silicon sealant to the top threaded chain link service cover and secure with the four 5 16 x 3 4 UNC bolts Seal the threads with silicon to prevent leakage from the head box Item 60 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the
119. ount around the oil gallery port as too much silicon could plug the port Item 20 21 Sameas 5 6 7 8 8 amp 9 22 Blow compressed air into the bottom spindle bearing cap oil feed port and confirm there is a free flow to both the top and bottom bearing feed holes 23 Place the bearing shim spacer tube over the threaded end of the spindle and allow the bearing shim spacer tube to slide down onto the driven sprocket NOTE This is a slip fit 24 Place the bottom bearing cone over the threaded end of the spindle and allow the bottom bearing cone to come to rest on the bearing shim spacer tube 25 Liberally apply a full thread depth coating of a lithium based grease to the entire spindle thread Item 25 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting NOTE This is a right hand thread 26 2 28 Before installing the spindle nut onto the spindle ensure the wear sleeve is serviceable If there is any doubt replace it Liberally apply a full thread depth coating of a lithium based grease to the bottom spindle nut and install this onto the spindle Once the spindle nut is snug on the bearing cone install the spindle nut tool onto the spindle nut This tool has an D large enough to see when alignment between nut and sp
120. out notice 7 48 PO Head Installation 1 With suitable lifting equipment carefully place the PQ head onto the head carriage while lining up pivot point with new hinge pin provided with PQ drive group Lifting eye bolts are provided for this 2 Lock head into place with the pivot pin bolt on left side top plate 3 Ensure head is filled to the correct level with hydraulic oil original factory fill quantity is 9 quarts U S 8 5 L Drill must be level in all directions A WARNING Dena with head assembly in the vertical position and no spindle rotation the svei Todo ca canresui in maximum or full level will be when the oil reaches the oil level plug located overheating on front left side of transmission This oil level can also be monitored through the clear tubing 3 4 drain line on the right side of head 4 Reconnect the head hoses to corresponding quick couplers on head gt E Do vipo _ me a on MUCK f e Chuck Mode Selector Valve 1 4 NPTF Plug Cartridge Adjusting Screw 5 Readjust the pressure reducing relief valve on drill as follows 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 49 Install a pressure gauge 0 1500 psi 0 10350 kPa in place of the 1 4 NPTF plug located on the back side
121. owels item 23 into the piston item 3 NOTE 2 Install the two urethane cup seals item 13 on the piston item 8 The orientation of the seals should outside diameter grooves Be sure to coat the seals with hydraulic oil be as shown in the planograph before installation NOTE 3 Lubricate the inner urethane cup seal item 12 with hydraulic oil and be as shown in the planograph 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 114 NOTE 4 Lubricate the urethane cup seal item 14 and install in outer chuck The location and proper orientation cylinder item 4 of seal should be as shown in the planograph NOTE 5 Lubricate the O ring item 17 and the backup ring item 18 Install in The installation order should be as the O D of the inner cylinder item 2 shown in the planograph 6 Install the external retaining ring item 30 on the PQ chuck spindle item 1 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 115 7 Install the lower spindle wear ring item 19 on the PQ chuck spindle item 1 NOTE
122. products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting For ease of chain installation it is recommended that a heavy gauge wire be fed through the front of the head box service door and around the spindle Continue to feed the wire around the inside of the head box so that both ends of the wire end up protruding through the head box front service opening Be sure to keep the wire tight against the inside walls of the head box to prevent any internal parts interfering with the wire during reassembly 18 Place the final drive driven sprocket onto the spindle extended boss toward the bearing As the final drive driven sprocket is a slip fit onto the spindle ensure this is started evenly and not forced Be careful not to get your fingers caught between the final drive driven sprocket and head box as the sprocket slides into place Item 18 19 Replace the 1 2 O D x 3 8 I D O ring which seals the internal gallery on the head box which feeds the bottom bearing cone 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 20 Apply RTV high temperature silicon sealant to the mating surface of the bottom spindle bearing cap Do not use an excessive am
123. r and lower chain link service covers of the head box Item 4 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 15 10 11 12 Remove the four bolts which secure the lower chain link service cover and remove cover Remove the four bolts which secure the upper chain link service cover and remove cover Leave breather hose attached Feed a piece of clean cloth through both chain link service openings and underneath the drive head chain This is to catch the roll pins or chain master link should they be inadvertently dropped Remove the roll pin from the drive head chain master link with suitable pliers Withdraw the drive head chain master link through the top chain link service opening A small pin punch may be required to assist the removal of the master link Thread a piece of thin wire through the end of the drive head chain Hold tension on the wire and withdraw the blank end of the chain by rotating the spindle by hand ensure you have enough wire to accomplish this Maintaining tension on the wire stops the chain from bunching up and jamming internally in the head box Remove the oil pump suction hose and pressure hose located on the bottom of the head box Remove the four bolts and lock washers securing the hydraul
124. r assembly into the bore Using a soft face hammer gently tap the intermediate shaft and gear assembly in the housing bore Ensure that the intermediate shaft and gear assembly is square in the bore Using a proper lifting sling roll the main housing on its side so as to have access to the bottom bore NOTE Take note of the orientation of the two 1 2 1 27 cm UNC threaded holes they must be at right angles to the main housing 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 11 Use the intermediate lock plate and two 1 2 UNC bolts of the appropriate length to draw the intermediate shaft into place in the main housing Tighten each bolt alternately being careful not to bottom out the bolts in the thread holes 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 12 When intermediate shaft is drawn into position remove the intermediate lock plate There must a gap of approximately 060 1 5 mm from end of the intermediate shaft and the bottom of the counter bore 13 Apply RTV high temp silicone to the outer edge of the intermediate
125. r opens or closes the mud mixer cathead circuit py Auxiliary Mud Mixer Selector Valve A flow control valve is below this selector valve which controls the mud mixer speed Clockwise adjustment of the flow control valve will reduce speed while counterclockwise adjustment will increase speed Comes with a mechanical lever lockout device to prevent accidental actuation of selector valve Lift to shift lever for raising or lowering mast A sequence valve is sandwiched below this flow control valve which ensures the fine feed circuit receives priority from the secondary pump To set this sequence valve join the two mud mixer hoses together and place the lever in the off position Adjust the flow control valve to maximum open by rotating the knob counterclockwise When the auxiliary lever is put in the on position the indicated pressure on the feed pressure gauge should drop 100 psi 0 7 MPa That is if the fine feed circuit has been adjusted to 2000 psi 13 8 MPa this should drop to 1900 psi 13 MPa when the mud mixer cathead circuit is switched on To maintain priority in the fine feed circuit the sequence valve meters flow to maintain pressure in the feed circuit before it will allow flow to the mud mixer circuit a Y L Mud Mixer Sequence Valve Adjusting Screw 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to c
126. racket and position in its respective bracket on the drill base do not tighten the clamping jaw set screw Next loosen the outside mast support leg clamping jaw set screw Restart the diesel engine and place the mast to the desired drilling angle by pulling the mast raising control lever towards the operator Once the desired angle has been reached firmly secure the outside mast support leg clamping jaw set screw and locknut before doing the same to the inside mast support leg clamping jaw Retension the four mast pivot block bolts 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice GQEOART TONGYEAR aa en REZ Raising the Mast Hydraulic Mast Raising Option NOTE Ensure there are no overhead power lines trees or structures which could foul the mast during the raising drilling or lowering operations Mast Raising Lowering Selector Valve This is a spring centered motor spool four way three position valve which either raises or lowers the mast assembly hydraulically when activated The lever for this valve is situated under the control panel surface to prevent accidental actuation of selector valve The front panel on the control console must be opened to access the lever for raising or lowering the mast Raising the Mast 1 Prior to starting the machine ensure the drill is leve
127. re starting disassembly of the unit Place the head on a solid work table and block it up to support it Lay the head down so that the spindle is horizontal to the work table Remove all hoses fittings gear shift lever etc from the head all external components Remove the chuck with either the lifting bail or a suitable lifting sling Remove the mounting group brackets and or bulkheads Remove the four bolts which hold the rotation motor assembly The motor is siliconed to the transmission and will have to be pried off to break the seal Support the transmission preferably with the aid of a crane and sling arrangement Remove the six mounting bolts that secure the transmission to the input carrier Carefully slide the transmission back and out of the main housing a T Remove the lock wire from the two bolt heads on the retaining washer on the transmission output shaft Remove the two bolts retaining washers and shim pack 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 13 Slide the splined adapter forward off the transmission output shaft NOTE This is a right hand thread Spindle Bushing Adapter Nut 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve th
128. refore reserve the right to change designs materials specifications and price without notice Drilling Operations Bit Weight Table 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Off Pressure PSI 100 150 200 250 300 350 400 450 900 550 600 650 700 750 800 850 900 950 1 000 1 050 1 100 1 150 1 200 1 250 1 300 1 350 1 400 1 450 1 500 1 550 1 600 1 650 1 700 1 750 1 800 Downward Force on Bit Lbf 706 1059 1 412 1 765 2 118 2 471 2 824 3 177 3 530 3 883 4 236 4 589 4 942 5 295 5 648 6 001 6 354 6 707 7 060 7 413 7 66 8 119 8 472 8 825 9 178 9 531 9 884 10 237 10 590 10 943 11 296 11 649 12 002 12 355 12 708 kg 320 480 640 800 961 121 281 441 601 761 1 921 2 082 2 242 2 402 2 561 2 722 2 882 3 042 3 202 3 362 3 522 3 683 3 843 4 003 4 163 4 323 4 483 4 643 4 804 4 964 5 123 5 284 5 444 5 604 5 764 ee b Drilling Operations Shut Down Procedures 1 If the drill string is rotating close the fine feed valve and allow any drill string compression or stretch to drill out You will notice the bit weight gauge needle begin to rise as the weight comes off the bit 2 Return the fine feed selector to neutral centre position and crack open the feed rate control 3 Low
129. reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 45 NOTE Drill assembly must always 65 Refill head box to the correct level with hydraulic oil original factory be level fill quantity is 7 quarts U S 7 5 L Refer to page 7 11 for a list of lubricants Drill assembly must be level in all directions With head CAUTION po not assembly in the vertical position and no spindle rotation the maximum overfill To do so will result in or full level will be at the lower end of the 3 oil level gauge located on overheating operator s side of the head box Oil Level Gauge Max Full Level gt gt BOART LONGYEAR FA LF 70 Core Orii Temperature gauge is measured in degrees Fahrenheit F Conversion to degrees Celsius C F x 0 556 C a ees HOO a kinai ET A E Se a N NOTE Actual equipment may not be exactly as shown 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 7 46 PQ Head Drive Group Optional The PQ Head Drive Group is situated in the drill carriage on the 11 ft 3 4 m mast section This drive group consists of a two speed variable displacement bent axis hydraulic motor a four speed mechanical transmission a 2 1 drive ratio gear box with a s
130. rill in a level manner Use timber planks under the four leveling jack legs if necessary 2 Add the required mast sections either upper and middle or upper only and make sure they are firmly secured with their respective mounting bolts 3 Route the main line hoist and wireline hoist cables through the sheave wheels of the crown block assembly making sure to replace the cable retaining spacers and bolts Item 3 Wireline Cable Retainer Spacers and Bolts Main Line Cable Retainer Spacers and Bolts 4 Secure the overshot and hoisting plug if connected or main line hoist and wireline hoist cables to the mast to prevent them from falling during the raising operation 5 Start the drill as described in the previous section and stroke the drill head the entire length of its stroke up and down a few times To accomplish this raise the fast feed lever to stroke the drill head to the extended position and push the fast feed lever down to lower the drill head towards the base of the mast This will eliminate any entrapped air from the feed cylinder which will allow for a smooth mast raising 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations CEID 6 Loosen the four bolts on the mast swivel mounting blocks do not completely unscrew loosen only two turns I
131. rive Head Chain Field Maintenance Check and Adjusting Procedures 7 6 Head Slide Wear Bars Field Maintenance Check and Adjustment 7 10 Auxiliary Pump Output Field Maintenance Check and Adjustment 7 11 Lubrication PQ Head Bearing Lubrication PQ Head Box Oil Level Lubrication Chart 7 14 HQ Rotation Unit Group Drill Head Disassembly 7 22 HQ Rotation Unit Group Drill Head Reassembly 7 46 PQ Head Drive Group Optional PQ Head Installation PQ Head Disassembly Procedures PQ Head Reassembly Procedures Intermediate Gear Assembly Intermediate Shaft and Gear Assembly Input Pinion and Shaft Assembly Output Shaft Assembly Spindle Output Carrier and Pump Mounting Transmission Assembly Hydraulic Module Control Panel 7 112 PQ Nitro Gas Chuck Assembly Procedures Installation of New Jaws Nitrogen Gas Springs 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 2 Drive Head Chain Field Maintenance Check and Adjusting Procedures The proper tension of the drive head chain is of utmost importance The first tension inspection should be carried out after approximately 500 hours of operation Following the above break in procedures for the drive head chain a regular tension inspection should be carried out after approximately every 1000 hours of oper
132. rnal case drains have these plumbed together with the secondary circuit return oil into the case drain filter This is a spin on cartridge which will remove any contamination prior to oil entering the hydraulic reservoir Case Drain Oil Filter 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 0241 GAH OLLWAWSAHOS NOILdIMOS3d L 40 133 s 1H93M daAONdd a3X93H9 JVJA9NOQOT LYVOd i Sas HSIMYSHLO SSIINN ee SNOLLWOISIOAdS TWHANA9 A1IVOS LON Od MOV AOH HLIM LSYN ISd 0081 0081 MOVY GO ON HLIM LSVW ISd 0091 0091 SONILLAS AANTVWA ONISIVY LSYN WO TWIMSdWI ee l X ISd 00SE Wd9 p CAA NE ISd 0002 FA AY Wd9 LL he jean a ee E M i I N anNOYOL ascii F z aow i Ct T Fg P ti Ti De i ISd 009 ee l bee o d W S AYNSsadd YsalvM Hydraulic Explanation X ISd 0S AP 001 pik V cf i co OLE T Kini X ISd 098 099 1H93M lg ISd 00 0S rh i bt XI STH cE oog 3 2 LSIOH JAVY ANV aNNAYIM LSIOH 3NI NIV MONHD OMNVYCAH QVAHLVO YAXIN ann Ge I u 5 SYSACNINIAD LSVI AAA Li NOILVLO ALO NOLLdINoSaqd ON Lud WALI 40 NOILdIdoSaqd ON LYWd WALI 0 NOlLdINOS3d ON LYWd WALI L00z ou JeaABu07 p
133. ront service opening facing up 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 17 24 Remove the top spindle bearing oil seal with a screwdriver Item 24 25 Remove the four capscrews retaining the bottom guide bushing plate to the spindle nut and remove the plate 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 18 26 Remove the two capscrews which retain the bottom spindle nut locking keys and remove the keys Item 26 2 7 Remove the bottom spindle bearing oil seal with a screwdriver Item 27 28 Turn the head box upside down bottom spindle bearing cap facing up and attach a spindle nut removal tool to the bottom spindle nut with four capscrews Item 28 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting NOTE This is a right hand thread NOTE the oil gallery port location which is sealed with an O ring when the bottom spindle
134. rouble Shooting Using an appropriate tool cut through the lip of each wear sleeve CAUTION The lip being Roll the lip off each wear sleeve by inserting a pair of needle nose removed from the wear sleeves pliers into the lip and rolling the severed lip off the wear sleeve and is extremely sharp caution is around the needle nose pliers advised 29 Turn the completed spindle up so that the threaded end of the spindle is resting on the work bench Using the 3 4 UNC tapped holes in the spindle chuck adaptor flange install the appropriate lifting aid Sling the spindle up and guide it through the main housing being careful not to damage the threaded portions of the spindle A slight twist of the spindle may be required to line up the spline of the spindle with the internal spline of the output gear Be sure that the tapered roller 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting bearing on the spindle is completely seated in the bearing race of the housing cover Output Carrier and Pump Mounting 30 Place the output carrier face down on the work bench Install the first oil seal lip down Drive the seal down until it bottoms out on the bottom of the counter bore 2005 Boart Longyear Inc Boart Longyear is constantly striv
135. rough the lifting eyes on the four corners of the drill base and the entire machine cinches down onto supporting timbers 1 Dig two trenches 10 ft 3 m long and 3 ft 1 m wide in front of and behind the drill These trenches should be a minimum of 3 ft 1 m deep 2 Place a minimum of a 10 25 cm diameter log hardwood in good condition or alternately 3 old 10 ft 8 m HQ drill rods in each trench Securely fasten enough 3 8 1 cm diameter chain or 5 8 16 mm wire rope to each end of the log or drill rod bundle so there will be 5 ft 1 5 m protruding from the surface after the trenches have been filled 4 Place a covering of rocks and boulders over the logs or drill rod bundles and lay the free end of the chain or cable over the top of the trench removing any slack 5 Cement the log or rod bundles into position with enough grout mixture to cover the layer of rocks and boulders Backfill and compact the soil into the trenches and restore the site to a level position Allow 12 hours for the cement to cure 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations 440 No Drill Hole Interference Trenches i Run chain or wire rope through two lifting lugs and attach as per 6 L09 OF Rod Bundle inch or Turnbuckle Saeer eatnge eran
136. rviced in a shop environment with the aid of an overhead lifting device and appropriate shop tools AX CAUTION All PQ Head internal parts must be free and clean of any foreign matter Extreme caution is advised in the handling and assembly of the PQ Head due to the size and weight of parts Watch for pinch points during the disassembly and reassembly procedure All parts must be cleaned and free of dirt burrs and RTV sealant All threaded holes must be cleaned of locktite and RTV sealant using the appropriate size taps Take care to ensure that all internal oil galleries are clean and unclogged Install the bottom spindle bearing race using an appropriate driver Make sure race is pressed tight against bottom of counter bore 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 66 z bO aO _ NOTE Notice the direction ofrace 2 Apply a thin film of oil on outside diameter of bearing race before installation to accommodate input installation Install bottom bearing input shaft race using appropriate driver shaft bearing Install race approx 1 4 0 64 cm into the bore 4 NOTE Clean and re install magnetic pipe plug using an appropriate pipe thread sealant 2005 Boart Longyear Inc Boart Longyear is constantly stri
137. s approximately 8 200 mm above the work bench 30 Remove the six 1 2 UNC bolts and lock washers from the pump mounting cover z reg 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting NOTE The silicone seal must be 31 Remove the pump mounting cover ke free first peace 32 Remove the 1 2 UNC bolts and lock washers from the output carrier NOTE The silicone seal must be 33 Remove the output carrier broke free first 34 Place the output carrier face down on the work bench Using a punch drive the two oil seals out of the output carrier bore 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting NOTE Caution is advised so as not to damage the threads on the spindle NOTE Itis recommended thata punch made of a soft material be used preferably brass NOTE During the removal of the wear sleeves be careful to avoid damaging the spindle O D 35 36 37 If the large snap ring is removed from the spindle the spindle can now be removed To remove the spindle insert two 3 4 UNC lifting eyes into the 3 4 UNC
138. s products and must therefore reserve the right to change designs materials specifications and price without notice Drill Introduction 22 General Drill Arrangement YOKED ROD GUIDES ALUMINUM ROD SLIDES STEEL ROTATION UNIT OPERATOR S LEVELING JACK LEGS 4 ONE LOCATED O a eas CSS Te ay not be exactly as shown NOTE Actual equipment m 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice BOART LONGYEAR O CROWN BLOCK t ASSEMBLY UPPER MAST SECTION MIDDLE MAST SECTION LOWER MAST SECTION HYDRAULIC MODULE MUD TANK SUPPORTS 4 NOTE Actual equipment may not be exactly as shown TOWING HITCH DIESEL ENGINE WHEELS 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Tech Data See Appendix A 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice amp BOART LONGYEAR Drill Components 3 2 Drill Base 3 4 Power Unit Module 3 5 Draw Works Sub Frame Module 3 6 Wireline Hoist Assembly 3 7 Lower Mast Section 3 8 Upper Mas
139. sembly will also be removed with the main housing cover 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 60 46 Lay the main housing cover down flat on the work bench with the output gear exposed 47 Remove the larger spindle snap ring spacer and output gear 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 61 48 Raise the cover up and off of the main spindle 49 The intermediate idle shaft and gear assembly can be removed with a soft punch or set up in a press and pressed out of the intermediate shaft 50 Turn the cover upside down and blocked up approximately 2 50 mm above the work bench 51 Drive out the two remaining bearing races 52 Slide the intermediate spacer off the intermediate idler shaft 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 62 53 Slide the intermediate gear assembly off the intermediate idler shaft
140. ssembly in the vertical position when determining the proper full level Schedule Change Interval 250 hrs overfill To do so can result in overheating 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 7 13 General Maintenance and Trouble Shooting Lubrication Chart YVIADNOT LUVOE Q pa6ueyo s 10 oNespAy peeH eana UO ulds J AOUYM JO SjeAJBIUI INOY OGZ juawaja ebueyo L6CcVGE UOIDI Go 19 SQN PESH IHA Od G JO 9394S pebueyo si jlo oIINeupAy pe H anug uO ulds c ON 8nss JBABUBYM JO SjeAJBIUI INOY OGZ juaewaja suey O6LOOL uoJ GZ J9 I4 qN7 PeoH Hq v POYLOL aGueyo jio oINespAH JO OS OP 0 UO ulds Ajquessy Iua OZ 47 sAejdsip Joyeoipul pensia uayM u waja eBHueYyD i ZEZOOL UOIDII SZ Jayi4 ureig aseg e eyg uonesnqn aGHueyo jio 2NeIpAH JO OS op 0 nea ssed g oe sAejdsip Joyedipul pensia uym JUsWE a BHueyD i 9ez00 4 UOJDII OH 1 l4 UIN Y UW Z aGueyo jio 2NeIpAH JO OS op 0 nea ssed g sAejdsip soyeoipul pensia uym u waja BHueyD i 8891004 UOIJOII OL INSS Id dwnd UEN i JOqUNN Hed syew y S O u w jg 419314 uol el jld uodos qg 1 14 Wes yeys 9U 319 Y 193 14 amp MV UIIQOW cdg XNI QON IIQOI cdd X8ld 4IN UOIABYD eune s JO nse w SN U a SELUNIOA y F G finn IIO reueduy esealdy sod ndyny SdW A E ETE ia joc
141. st is slightly over centre Stop the diesel engine Once the mast has broken over centre with the lower mast section resting against the drill base release the outside i e furthest away from the control panel mast support leg from its retaining bracket on the lower mast section and position it in its respective bracket on the rear of the drill base Secure the clamping jaw firmly Once the mast is firmly supported in a vertical position by the outside mast support leg remove the inside mast support leg from its retaining bracket and position in its respective bracket on the drill base do not tighten the clamping jaw set screw Next loosen the outside mast support leg clamping jaw set screw Restart the diesel engine and place the mast to the desired drilling angle by pulling the mast raising control lever towards the operator Once the desired angle has been reached firmly secure the outside mast support leg clamping jaw set screw and locknut before doing the same to the inside mast support leg clamping jaw Retension the four mast pivot block bolts 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations 424 NOTE Actual equipment may not be exactly as shown Item 16 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its pro
142. t Section 3 9 Middle Mast Section 3 10 Hydraulic Module 3 11 Control Panel 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice DrillComponents 3 2 Drill Base NOTE The towing group is optional and includes two axles wheels and a towing hitch A WARNING rne towing group is designed for off road use only Ensure that the towing vehicle used has the proper towing hitch rating Included in the base are provisions for two single axle wheels a towing hitch pintle eye four leveling jack legs manual four mud tank supports operator s stand battery box and fuel tank The base is such that all top side components can be easily positioned and slid into place during assembly of the drill Weight Base Complete Including fuel tank full battery box and battery 4 leveling jack legs operator s stand 4 mud tank supports 2 wheels towing hitch 1398 Ibs 635kgs 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drill Components NOTE Actual equipment may not be exactly as shown Individual Components Ib kg Wheels and Stub Axle each 112 51 Battery Box amp Battery 134 60 Fuel Tank full 125 57 Towing Hitch 55
143. t the output power of the diesel engine to the various drill functions Following is a description of each circuit Hydraulic Pump 5 S Ttaasammv ues 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation Drive Source The hydraulic pumps are driven by a toothed composite synthetic adapter plate flywheel coupling which is bolted to the flywheel of the diesel engine The main pump has a toothed driven sprocket mounted on its input shaft which fits into the composite flywheel adapter plate with the pump flange being bolted to an aluminum bell housing adapter plate The secondary pump is piggybacked to the main pump and connected by a through shaft Drive for the fluid pump hydraulic power source is via a toothed timing belt inside the aluminum bell housing pump mounting plate Behind the toothed driven sprocket on the main pump input shaft is a toothed pulley to which a timing belt is connected This in turn powers the hydraulic pump fluid pump which is mounted towards the upper outside diameter of the aluminum bell housing pump mounting plate Hydraulic Pump Fluid Pump 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price wit
144. t the threads of the holes for removal of the housing cover 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 86 Output Shaft Assembly Spindle 26 Place the spindle in a press Apply a film of oil on the spindle bearing shoulder Assemble the top tapered bearing cone onto the spindle with the large bearing O D towards the chuck flange on the spindle 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice BOART LONGYEAR Paraihiainionaneacndiiobiachoaia 7 87 Place the output spacer over the spindle and on top of the bearing PN Now place the output gear onto the spindle as the gear will only be used to press the top bearing cone into position against the chuck adaptor flange and then removed Position a suitable piece of hollow tubing over the threaded section of the spindle onto the output gear 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 88 Press the top bearing into position against the chuck
145. tapped holes in the chuck adapter flange Connect a chain or sling and utilizing an overhead hoist to lift the spindle up and out of the PQ head With the threaded end of the spindle resting on the work bench drive the output wear sleeve down and off the chuck adapter flange portion of the spindle 38 39 Now drive off the top cone bearing with the same punch Turn the spindle over so that the chuck adapter flange is resting on the work bench Remove the two wear sleeves 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 40 Remove the eighteen 1 2 UNC x 1 3 4 capsrews 41 Locate and remove the four 1 2 UNC x 3 4 setscrews These locations are the four jack screw locations 42 Install four 1 2 UNC bolts with approximately 2 50 mm of thread length 43 Begin removal of the housing cap by tightening the jack screw bolts in a cross hatch pattern 44 When the housing cover has broke lose from the main housing by approx 1 2 install a proper lifting arrangement so as to lift the housing cover off the main housing as level as possible 45 If the lower spindle cone bearing was left on the spindle it will now drop off and onto the work bench The spindle output gear and the intermediate idle shaft and gear as
146. tem 6 7 Before raising the mast loosen the capscrews which hold the mast A WARNING Ens r support legs in their travelling position do not remove completely there are no overhead power Accomplishing this step prior to raising the mast will avoid any lines trees or structures which unnecessary delays in securing the mast support legs once the tower could foul the mast during the has been raised raising drilling or lowering 8 Prior to raising the mast make sure that all hoses fittings and cables operations ioe are free and will not get caught on anything during the raising operation a a Na l 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations 4419 9 Slowly begin to raise the mast by moving the mast raising control lever forward away from the operator oe y a i gt f 4 jae s i Item 9 7 NOTE Actual equipment may not be exactly as shown 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drilling Operations ETID 10 11 Raising the mast should be accomplished in a gentle smooth fashion Avoid jerky and erratic stop and start motions Once mast raising has comm
147. terials specifications and price without notice General Maintenance and Trouble Shooting 16 Install the pump adapter into the bore of the input pinion and shaft Line up the matching holes Install the pump adaptor drive tang Push the 1 4 6 4 mm diameter dowel all the way through the input pinion and shaft pump adaptor and pump adapter drive tang 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 80 NOTE Make sure that the pump 17 Coat the input pinion and shaft bearing race in the main housing adapter tang is in the vertical with a thin film of oil Install the input pinion and shaft into the main position housing meshing the pinion with the intermediate gear 44 CAUTION Pinch point condition in this part of the assembly 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 81 18 Install the output gear inside the main housing while meshing with the 4 CAUTION Pinch point put g g g intermediate gear condition in this part of the assembly Coat the face and the internal spline of the gear with a thin film of oil Place
148. the output spacer on top of the spindle gear centering it on the bore diameter 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 82 19 Install four 1 2 x 5 UNC bolts remove the heads one in each corner of the main housing These will act as line up pins for the installation of the housing cover 20 Spread a coating of RTV high temp sealant in the groove in the top of the intermediate shaft Run a bead of RTV high temp sealant on the face of the main housing inside the bolt pattern 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 83 44 CAUTION The cap must be drawn down evenly or it will gall the intermediate shaft 1 2 UNC bolts of the appropriate length can be inserted into the housing cover bolt holes in order to assist with this operation Care must be taken as not to bottom out the bolts in the thread holes which would damage the threaded holes of the main housing Once the housing cover has seated firmly to the main housing remove all bolts line up pins and the washer or bar from the intermediate shaft 21 Usin
149. therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 75 7 Once the drive head chain has been correctly tensioned check that the drill head hinge pin bottom centre of head box aligns in its two respective bores on upper hinge support and lower hinge plate If the chain adjustment has affected the hinge pin alignment reposition the flat washers behind the upper head hinge support on the upper left side of the Funk transmission to regain correct alignment Wy Loncvear ff Item 7 8 Clean the top chain link service cover and appropriate four capscrews Apply new RTV silicon sealant to the bottom cover and the four 5 16 x 3 4 UNC capscrews to prevent leakage from the head box Now fasten the cover to the head box 9 Reinstall the square head pipe plug drain plug in the base of the head box NOTE Be sure the head is exactly 10 Refill the head box with the correct amount of NEW hydraulic oil through level and vertical when filling with the top chain link service port Refer to page 9 05 for a list of lubricants oi 11 Clean off any old sealant from the top chain link service cover and the four 5 16 X 3 4 UNC capscrews used for fastening Now apply new RTV silicon sealant to the top cover and capscrews to prevent leakage from the head box Secure the top chain link service cover to the head box with the four capscrews 12 When ch
150. tice General Maintenance and Trouble Shooting 7 34 NOTE This is a left hand thread 40 Place the segmented sealing ring 51508 onto the chuck adapter spindle Now generously lubricate the chuck body sleeve with a lithium based grease and position this on top of the segmented sealing ring Next screw the chuck body onto the adapter flange gt 5 b 3 b 31038 LAS SE E E e E Item 40 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 35 41 Next refit the rotation motor into the adapter shaft and Funk adapter box Ensure the O ring on the rotation motor flange boss is serviceable prior to doing this Use spring washers then torque the two mounting flange bolts down to 240 ft lb 825 Nm Item 41 42 Lubricate the appropriate chuck jaws and springs with lithium based grease and fit these to the chuck body 43 Fit a new wear ring to the chuck hood and assemble the chuck hood to the chuck body with the three shoulder bolts Tension these to a final torque of 150 ft lb 205 Nm 44 Turn the drill head onto its back which will allow access to the bottom spindle bearing cap Lubricate the D of the oil seal and the O D of the wear sleeve with a lithium based grease Fit the oil seal into the bottom spi
151. tion Pump Group W09 Wet Weight 145 kg 320 Ib The max output of the standard 2 speed motor for the LO9 is as follows High vol low pres 20 gpm 300 psi Low vol high pres 10 gom 800 psi rT ma Sees i mgA 759 mm lt f ___ _ 29 9 in Dimension and weights are nominal and should be checked before crating or lifting Conversion factors have been used to convert from Imperial to Metric measures Boart Longyear Inc is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice 2006 Boart Longyear Inc TECH DATA No 8 TECHDATA MKT 1617 Date January 2007 Page 10 of 10 LF70 Diamond Core Drill System DIMENSIONS AND WEIGHTS Fluid Circulation Pump Group W11 Wet Weight 254 kg 560 Ib The max output of the standard 2 speed mo ey WAG f motor for the W11 is as follows aa anu e i WOI High vol low pres 35 gom 300 psi 6 2 hp C3 Low vol high pres 17 gom 800 psi 7 9 hp If a higher output pressure system is required Se m i eee an optional 2 speed motor can be supplied with the following max output High vol low pres 23 gom 950 psi 12 7 hp Low vol high pres 11 gom 1000 psi 6 4 hp Ta 28 9 in E Mud Mixer Assembly ee Wet Weight 31 kg 68 Ib 1219 mm 48 in NOTE Maximum speed of mud mixer shaft at full flow is 2300 rp
152. traight cut gear set PQ Chuck high pressure filter and chuck head guard The final drive of the rotation unit is through the 2 1 gear box out to the spindle The PQ Chuck is used to transmit the rotary power of the drill head to the drill string NOTE Actual equipment may not be exactly as shown NSS PQ Head Reservoir Assembly To check the maximum or full level when the spindle To check the maximum or full level when the is not rotating the oil level should be 1 25 mm spindle is rotating in 4th gear at 1250 rom the below the top elbow of the sight tube when the head oil level should be 1 25 mm above the bottom is in a vertical position elbow of the sight tube when the head is ina vertical position 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 1 47 In order to convert an existing LF 70 drill from the HQ to the PQ head the following steps are required 1 With suitable lifting equipment remove the existing HQ rotation unit from the head carriage on lower mast section Use the three lifting points provided 2 Replace existing top plates with new top plates The pivot pin 3 4 10 capscrew and 3 4 flatwasher should be transferred to the new top plates Head Slide Wear Bars Field Maintenance Check and Adjustment 3
153. ttaching the outside mast support leg A WARNING nsure tnat no one is in the vicinity of the mast lowering area and that there are no overhead power lines trees or structures that may foul the mast during the lowering operation 1 2 D Stop the diesel engine Loosen the clamping jaw set screw on the inside mast support leg ie closest to the diesel engine and detach the sliding section from the front of the drill base Now push the telescoping inner support leg section into the outer support leg section and fold the support leg back to its travelling position on the lower mast section and retain it in the bracket provided Repeat step 2 with the outside mast support leg ie furthest from the diesel engine and retain it in its travelling position Loosen the four mast swivel mounting block bolts two 2 turns Start the diesel engine and adjust to 1500 rom Slowly move the raising lowering control lever back towards the operator This function will retract hydraulic cylinders lowering the mast Mast lowering should be accomplished in a smooth steady fashion Avoid jerky stop start motions When lowering the mast ensure no hydraulic hoses fittings or cables will get caught or snagged during this operation or that the hoisting and wireline cables and accessories are firmly secured to the mast and cannot fall off Once the mast has come to rest on its support brackets at the front of the drill
154. ving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 1 67 5 Turn main housing over face up Check dowel pins for signs of wear or burrs 6 Place housing cover face up Apply a film of oil on bore diameter before installation Install top spindle bearing race using an appropriate driver eo ee aa Apply a film of oil on bore diameter before installation Install top input shaft bearing race into bore approximately 1 4 deep na R op l x di wae ii Te gt g 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 68 Install the two 3 8 NPT pipe plugs using an appropriate pipe thread sealant Intermediate Gear Assembly 7 Install snap ring into snap ring groove in gear 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 7 69 NOTE This spacer must be installed in the proper direction The measurement out to end of gear must be approximately 1 5 16 3 33 cm both sides Press bearing races in one on
155. washed and reused if it becomes clogged The outlet of the primary pump goes directly to a high pressure filter 10 micron absolute rating which is fitted with a clogging indicator this should only be monitored at operating temperature as cold oil may give a false reading Oil from the high pressure filter is then directed to the inlet section of the main valve bank which is fitted with a rapid response relief valve factory set at 3600 psi 24 8 MPa All spools within the main valve bank are of closed centre design When the drill is initially started all levers on the main valve bank should be in the neutral position As these are closed centre valves pressure will immediately begin to build up A signal is however transmitted from the main valve bank to the low pressure standby feature on the primary pump This causes the primary pump to destroke itself to maintain 200 psi 1 4 MPa in this circuit The low pressure standby feature is attached to the 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation gt Filter and Clogging Indicator bottom of the primary pump and is the upper ie closest to the pump adjustment screw This is factory set at 200 psi 1 4 MPa lf the low pressure standby feature requires adjustment the pressure can be read from the rod torqu
156. with the top bearing cone place the spindle in a hydraulic press resting on the chuck adapter flange and position a suitable piece of hollow tubing over the threaded section of the spindle onto the final drive driven sprocket Press the top bearing into position against the chuck adapter flange Lis Se E pE ee ee di tit Li 1k BB ieee eh aE aE Tol ll AANI A EU ps Item 13 Remove the spindle from the press and invert the unit so the threaded end is resting on a soft piece of wood on the work bench Use a soft hammer to evenly tap the final drive driven sprocket off the spindle Place the spindle on a soft clean cloth with the chuck adapter flange facing down and the threaded end up 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice General Maintenance and Trouble Shooting 16 Lift the head box over the spindle and allow the top bearing cup on the head box to gently come to rest on the top bearing cone Using blocks of wood evenly position the head box over the spindle Item 16 17 Apply a light coating of lithium based grease to the spindle area where the final drive driven sprocket comes to rest Apply the same to the spindle keyways before inserting the drive keys Item 17 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its
157. without notice PQ Nitro Gas Chuck 1 Chuck Spindle 16 Backup Ring 28 Set Screw 1 2 13 UNC X 1 1 4 2 Inner Cylinder 17 O ring 29 Internal Retaining Ring 3 Chuck Piston 18 Backup Ring 30 External Retaining Ring 4 Outer Chuck Cylinder 19 Lower Spindle Wear Ring 31 Wear Sleeve Upper 5 Labyrinth Seal 20 Oil Guide Pin Seal 32 NA 6 Spring Retainer 21 Retainer Guide Bushing 33 Cap Screw 3 8 16 UNC X 1 1 4 Lg 7 Jaw Retainer 22 Dowel Pin 1 Dia X 3 1 2 Lg 34 Cap Screw 3 8 16 UNC X 3 4 Lg 8 Mounting Adapter 23 Dowel Pin 3 8 Dia X 1 Lg 35 Cap Screw 1 2 20 UNF X 2 Lg 9 Ball Bearing 24 NA 36 Cap Screw 1 2 13 UNC X 1 1 2 Lg 10 Nitrogen Gas Spring 25 Bowl 37 Seal kit 11 internal Retaining Ring 26 O ring 38 Support Plate 12 Inner Cup Seal 27 Grease Nipple 39 Grease 13 Outer Cup Seal 14 Piston Cup Seal 15 O ring 34 35 21 5 36 7 ea e LF H TT IL 31 26 H 10 i We ena ae te 29 ae 5 ar taut N re cL IT m KAY 19 ee J 2 la 7 PEN T M 9 T d ZNS ae l 30 LM oy 17 18 AN 13 12 wee 4 ie ml s N 7 y as N 23 NS F OS Ue N oo a ea an r A D 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice PQ Nitro Gas Chuck Assembly Procedures Refer to Planograph on previous page 1 Install the three d
158. wivel bail from unspooling as the drill head advances This situation could cause both equipment damage and personal injury Because of this circuit and the built in logic to pay out hoist cable as the drill head feeds down it is very important that the feed rate valve is left open when each drilling run is completed and the fine feed is turned off with the fine feed selector valve See photo reference page 5 16 If the feed rate valve was to be closed pressure could be trapped within the hoisting circuit holding the spring applied brake off and also the pilot check valves open This scenario would not allow correct hoist brake functioning and the hoist may not hold the rods from falling back down the drill hole A simple method of ensuring all oil is bled from the hoist circuit is to observe the bit weight gauge on the control console See photo reference page 5 16 When this drops to zero there is no residual pressure in the hoist circuit Hoisting can now be undertaken with the spring applied brake and pilot operated check valves controlled from the main line hoist lever on the main valve bank and not the fine feed circuit of the hydraulic module is the fine feed flow control valve This rotary valve controls the penetration rate weight on bit when the fine feed selector valve is in the down mode Conversely if the fine feed selector valve is in the up mode the fine feed flow control valve
159. y be insufficient pressure to open the chuck which also operates off this circuit 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation 548 Feed Pressure Reducing Control Valve Situated below the Fine Feed Flow Control valve and accessible from the front of the Hydraulic Module is the Feed Pressure Reducing Control Valve This valve controls the desired sensitivity of the Feed Rate Control item 22 as required when rod weight contributes to the force on bit At the start of the hole the Pressure Reducing Valve should be at maximum setting or at maximum feed circuit pressure 2000 psi 13 8 MPa As the rod weight contributes to the force on the bit the Pressure Reducing Valve setting can be decreased to maintain a relatively constant hold back pressure When the desired sensitivity of penetration is lost you may adjust the Pressure NOTE After the hole is Reducing Valve in order to regain the desired sensitivity Generally adjustment completed always reset the may be beneficial starting at approximately 3600 to 4100 lbf 16 014 to Pressure Reducing Valve to full 18 238 N of drill rod weight but is dependent on many factors open 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change
160. y circuit manifold from the secondary pump on the right hand side when viewed from the operator s platform All valves on the secondary circuit manifold are of closed centre design Mast Raising Lowering Selector Valve This is a spring centered motor spool four way three position valve which either raises or lowers the mast assembly hydraulically when activated Comes with a mechanical lever lockout device to prevent accidental actuation of selector valve Lift to shift lever for raising or lowering mast Mast Raising Lowering Selector Valve Feed Selector Valve This ts the first valve when viewed from the right in the operator s position on the secondary circuit manifold It is a four way three position detented valve and controls the fine feed mode in either the up or down direction Feed Selector Valve Fine Feed Flow Control Valve Situated below the fine feed selector valve and accessible from the front NOTE Actual equipment may not be exactly as showh Feed Rate Fine Feed Flow Control Valve 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Hydraulic Explanation A WARNING never it the bit weight pressure fall below 200 psi 1400 kPa during fine feed down operations as this will prevent the hoisting cable which is attached to the water s
161. y were pioneered by Boart Longyear To obtain the utmost in performance and life of the equipment it should be given regular care and operated in accordance with the instructions Read this manual carefully before attempting to operate the drill and keep this book handy at all times for reference when any question arises 2005 Boart Longyear Inc Boart Longyear is constantly striving to improve its products and must therefore reserve the right to change designs materials specifications and price without notice Drill Introduction Ordering and Returning Parts Ordering Parts The following procedure will expedite the filling of your parts order eliminate delays and assure correct replacement parts 1 List the model and serial number of the drill State exact quantity required Specify description and part number as shown in Parts Manual A W N Specify method of shipment ie Parcel Post Express Freight for Overseas shipment Air Freight Air Parcel Post or Ocean Freight All parts are priced F O B our factory and a separate charge will be made for transportation and export packing Returning Parts lf you wish to return parts whether for repairs replacement or warranty you should communicate the details of the return request in writing with your local Boart Longyear Representative In Canada the request can be sent via email to orderdeskrga boartlongyear com faxed to 705 474 2373 The request should r

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