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Manual - Grizzly Industrial Inc.

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1. H i 41 Feed Rate Gearbox Oil Reservoir ISO 68 or Check Half Way Fill Every 8 Mark in Sight Glass Equivalent Lubricant Hours of Operation The feed rate gearbox oil reservoir must be checked and oil added if necessary on a daily basis Tools Needed Qty Hex Wrench 8mm 1 To check and add oil to the reservoir 1 Check the oil reservoir sight glass shown in Figure 67 If the oil level is below the half way mark continue with the following steps to add oil 24 84 AT 98 1 Fr 4 ey 3 45 er LEI ever C A H x d i H i 5 Fill Plug ke 277 0 7 il 7 0 MADE IN CHINA Figure 67 Feed rate gearbox oil reservoir sight glass and fill plug 2 Wipe clean the area around the fill plug to prevent debris from falling into the reservoir when adding oil 3 Remove the fill plug 4 Slowly add oil until the level is centered in the sight glass 5 Replace the fill plug 42 NOTICE The feed rate gearbox oil must be changed after the first three months of operation then annually after that Tools Needed Qty Hex BA 3 96 Go 0 1 eaediecetadeetesacoaepaibetacteaceietecsetiee 1 Drain Pan at least 1 Gallon Capacity 1 To change the oil in the reservoir 1 DISCONNECT LATHE FROM POWER 2 Open the change gear cover on the left of the headstock 3 Remove the reservoir fill plug see Figure 67 Note fyou are experiencing difficulty
2. G2544 Solvent Cleaner amp Degreaser A great product for removing the waxy shipping grease from your machine during clean up F e Il D prayway ka K 1 800 523 4777 E LEANER amp DE GREASER 10 Orey eer Figure 4 Cleaner degreaser available from Grizzly EAR Site Considerations Floor Load Refer to the Machine Data Sheet on Page 4 for the weight and footprint specifications of your machine Some residential floors may require addi tional reinforcement to support both the machine and operator Make sure the workbench or stand you plan to use can safely handle the weight and vibration of the lathe and operational materials Placement Location Consider existing and anticipated needs size of material to be processed through each machine and space for auxiliary stands work tables or other machinery when establishing a location for your new machine See Figure 5 for the minimum working clearances CAUTION Children and visitors may be seriously injured if unsuper vised around this machine Lock entrances to the shop or disable start switch or power connection to prevent unsupervised use 12 Moving amp Placement AWARNING The Model G9972Z is a heavy machine Serious personal injury may occur if safe moving methods are not used To be safe get assistance and use power equipment rated for at least 750 Ibs to move the shipping crate and remove the machine
3. Step 2 600 5 Diameter of workpiece 1200 Result The correct spindle speed is 1200 RPM Example B You will rough turn a 1 diameter piece of stainless steel using a carbide cutting tool Step 1 60 SFM from chart x 2 for carbide tool 120 Step 2 120 Determined SFM x 4 480 Step 3 480 1 Diameter of workpiece 480 RPM Result The correct spindle speed is 480 RPM 29 BC3 ACT AC2 AC3 Figure 36 Model G9772Z spindle speed V belt configuration chart AWARNING The V belt change gears and pulleys represent a serious entanglement 3 Use Figures 37 38 to identify the A B and C pulleys Also note the location of the idler pulley hazard when the lathe p L sg is running Always dis UR connect the lathe from power before opening the change gear cover Configuring the V Belt There are six spindle speeds available by prop erly positioning the V belt on the motor idler and spindle pulleys Tools Needed Qty Figure 37 V belt in the A C configuration Wrench 17mm 1 To configure the V belt Idler Pulley Adjustment 1 DISCONNECT LATHE FROM POWER Stud amp Nut ec 2 Refer to the chart in Figure 36 above and find the spindle speed on the top row that is closest to your calculated spindle speed Note This chart is also on the front of the headstock In most cases the calculated spindle speed will be between t
4. Industrial Itc MODEL G9972Z 11 x 26 LIGHT DUTY LATHE w GEARBOX OWNER S MANUAL COPYRIGHT JULY 2008 BY GRIZZLY INDUSTRIAL INC REVISED JULY 2014 ST WARNING NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL INC TS10714 PRINTED IN CHINA 4 amp WARNING This manual provides critical safety instructions on the proper setup operation maintenance and service of this machine tool Save this document refer to it often and use it to instruct other operators Failure to read understand and follow the instructions in this manual may result in fire or serious personal injury including amputation electrocution or death The owner of this machine tool is solely responsible for its safe use This responsibility includes but is not limited to proper installation in a safe environment personnel training and usage authorization proper inspection and maintenance manual availability and compre hension application of safety devices cutting sanding grinding tool integrity and the usage of personal protective equipment The manufacturer will not be held liable for injury or property damage from negligence improper training machine modifications or misuse WARNING Some dust created by power sanding sawing grinding drilling and other construction activities contains chemicals known to the State of California to cause cancer
5. Loosen the inner spanner nut one full turn counterclockwise Note You may have to tap on the outboard spindle tube as explained in Step 6 to help unload the spindle preload and break the spanner nut loose Place a wooden block over the outboard end of the spindle and hit it soundly with the heavy dead blow hammer see Figure 80 Your goal is to slide the spindle forward just enough to introduce spindle end play that you can feel by hand Ip E E E d H play Place a dial indicator on the cross slide and move the carriage toward the spindle until the contact point of the indicator lightly touches the spindle face and the dial reads exactly zero see Figure 81 SE SS Figure 81 Dial indicator setup Move the carriage an additional 0 100 toward the headstock Insert the handle of a chuck key or similar tool in the spindle indents to keep the spindle from rotating then tighten the inner spanner nut until the indicator dial needle just stops moving and is back to exactly zero Note While tightening the spanner nuts rock the spindle back and forth slightly to make sure the spindle tapered roller bearings seat properly in their races When the dial indicator needle stops mov ing there will be no spindle end play and no bearing preload It is essential that you find this point without tightening the spanner nut too much and inadvertently preloading the spindle bearings G9972Z 11 x 26 Lathe w Ge
6. Power feed lever disengaged Half Nut Lever The half nut lever engages the carriage with the leadscrew which moves the tool along the workpiece see Figure 47 S i Engaged On AA iy det 1 ti k tt Cipher pp pare ylber aia ar ut Udine ER h he hp Bie Disengaged Off Figure 47 Half nut lever engaged disengaged G9972Z 11 x 26 Lathe w Gearbox Thread Dial amp Chart The numbers on the thread dial are used with the thread dial chart Figure 49 on Page 36 to show when to engage disengage the half nut during inch threading operations The thread dial must be engaged with the leadscrew to operate To engage the thread dial loosen the mounting cap screw pivot the thread dial gear onto the leadscrew so the gear teeth mesh with the leadscrew then re tighten the cap screw see Figure 48 A y j et G Gi Cap Screw y ek ech Ze Tee KN Figure 48 Thread dial NEVER attempt to engage the carriage power feed lever up and the half nut lever down at the same time and NEVER force these levers Always disengage the power feed lever down before engaging the half nut Otherwise severe damage to the lathe could occur 35 To use the thread chart find the thread pitch per inch TPI on the thread dial chart see Figure 49 that you want to cut and reference the Dial num ber next to it The dial number s indicate when to engage the half nut when cutting
7. and press the top red button to cut power to the motor C Spindle Switch Starts stops spindle rota tion turn the switch to the left for clockwise rotation to the right for counterclockwise rotation and to the center to stop spindle rotation D Configuration Chart Provides configuration information for spindle speeds power feed rates and threading operations E Spindle Holds a chuck faceplate or center for workpiece mounting F Feed Rate Dials Configure the feed rate gearing for carriage power feed and thread ing operations G9972Z 11 x 26 Lathe w Gearbox Carriage Figure 12 Carriage controls and components A Follow Rest Follows the movement of the carriage and provides support for long slen der stock to prevent workpiece flexing from the pressure of the cutting tool B 4 Way Tool Post Lock Lever Secures the cutting tools in the tool post C Compound Slide Handwheel Moves the compound slide and tooling toward or away from the workpiece D Thread Dial Shows when to engage the half nut during inch threading operations E Half Nut Lever Opens and closes the half nut on the longitudinal leadscrew which engages the carriage power feed for thread ing F Power Feed Lever Configures the apron gears for powered carriage movement Move the lever up to engage the power feed and down to disengage NOTICE NEVER attempt to engage the carriage power feed lever up and the half
8. clamp block from the bottom of the steady rest 2 Clean away any debris and grime from the bedways the steady rest ways and the clamp block 3 Position the steady rest on the bedway so the triangular notch fits over the rear angled bedway rail as shown in Figure 30 then re install and tighten the clamp block Figure 30 Steady rest controls G9972Z 11 x 26 Lathe w Gearbox 4 Loosen the finger lock nuts turn the adjust ment knobs to fit the fingers snug to the workpiece then re tighten the lock nuts Note The fingers should be snug enough to fully support the workpiece at all three points and also allow free rotational movement of the workpiece 5 Lubricate the finger tips with an anti seize grease during operation Note After prolonged use the fingers will require milling or filing to clean up the contact surface Follow Rest The follow rest shown in Figure 31 is mounted on the front of the saddle and follows the movement of the tool The follow rest is used on long slender parts to prevent flexing of the workpiece from the pressure of the cutting tool This rest requires only two fingers as the cutting tool acts as the third Figure 31 Follow rest attachment The follow rest can be attached removed from the carriage by two cap screws located at the base of the follow rest The sliding fingers are set similar to those of the steady rest free of play but not binding Always lubricate the t
9. from the crate To move and place your lathe 1 Remove the top and side crating materials and the chip pan 4 jaw chuck faceplate and toolbox from the shipping pallet 2 Position the chip pan on the selected mount ing surface and use it as a template to pre pare holes for the mounting hardware refer to Mounting on Page 13 3 Use the 17mm wrench to remove the hex nuts that secure the lathe to the shipping pal let AWARNING Only use lifting straps and power lifting equipment rated for at least 750 Ibs and in good working condition If the lathe falls or tips over while moving it serious personal injury and property damage could result G9972Z 11 x 26 Lathe w Gearbox 4 Wrap the lifting straps around the bed and between the leadscrew and the bedway as shown in Figure 6 Figure 6 Lifting strap positions NOTICE Make sure the lifting straps are between the leadscrew and bedway to avoid bending the leadscrew when lifting the lathe 5 Position the lifting straps at either end of the bedway then secure them to the lifting equip ment 6 With the help of an assistant to balance and steady the load lift the lathe and place it on the chip pan with the mounting holes aligned Note f necessary move the carriage or tailstock to help balance the load 7 To ensure accurate results from your lathe use a machinist s precision level to make the lathe bedway exactly level from side to s
10. ground Supplied in wooden box Figure 54 G1070 Live Center Set H7540 Metalworking Kit No 1 Get started with the practical lathe kit that includes the following hand essentials e Double ended boring bar with holder and two Ys HSS tool bits Two round head fly cutters Six head knurling tool Double ended knurling tool Straight turning tool holder with 6 HSS tool bit e Cut off tool holder with three HSS blades e Hex wrenches e Protective wooden case Figure 55 Model H7540 Metalworking Kit No 1 Gall V 800 523 417 77 Vo 38 G1075 52 PC Clamping Kit 72 T Nut Our clamping kits are among the best in the world All the blocks bolts nuts and hold downs are case hardened This clamping kit includes 24 studs 6 step block paris 6 T nuts 5 flange nuts 4 coupling nuts and 6 end hold downs The rack can be bolted to the wall or side of the machine for easy access Figure 56 G1075 52 PC Clamping Kit G9256 6 Dial Caliper G9257 8 Dial Caliper G9258 12 Dial Caliper These traditional dial calipers are accurate to 0 001 and can measure outside surfaces inside surfaces and heights depths Features stainless steel shock resistant construction and a dust proof display An absolute treat for the perfection ist Figure 57 Grizzly Dial Calipers G9972Z 11 x 26 Lathe w Gearbox H2972 Cut Off Holder with Blade H4268 22 x x 5 Replacement Blade Small enough
11. pin is designed to break and disengage power to the leadscrew to help protect more expensive lathe components if you crash your carriage or take too large of a cut and overload the lathe Connecting Collar Tools Needed Qty 65 19 610 0 EE a 1 Punch 2 5MM ME 1 To replace the shear pin 1 DISCONNECT LATHE FROM POWER 2 Rotate the leadscrew so the shear pin faces up and down If the connecting collar rotates independently from the leadscrew then rotate the collar so the shear pin holes align with those in the leadscrew 3 Use the punch and hammer to drive out the pieces of the old shear pin 4 Make sure the holes in the collar and leadscrew are aligned then tap the new shear pin completely through the holes in the collar and leadscrew G9972Z 11 x 26 Lathe w Gearbox Ribbed Belt Replacement The ribbed belt transfers power from the motor to the secondary drive pulley see Figure 78 If the ribbed belt becomes excessively worn or dam aged you will need to replace it b nuts Tools Needed Qty Hex Wrench 5mm optional 1 Wrench 14MM erarnnnonnnnnnrnarnnnnnernannnnennnrnnennnener 1 To replace the ribbed belt 1 DISCONNECT LATHE FROM POWER 2 Open the change gear cover and remove the V belt 3 Loosen the four motor mount hex nuts and raise the motor up Note t may be more convenient to access the motor mount hex nuts if you first remove the rear splash guard 4 Roll the old ribbed be
12. Only allow trained or properly supervised people to use machine When machine is not being used dis connect power remove switch keys or lock out machine to prevent unauthorized use especially around children Make workshop kid proof CHILDREN amp BYSTANDERS Keep children and bystanders a safe distance away from work area Stop using machine if children or bystand ers become a distraction FEED DIRECTION Unless otherwise noted feed work against the rotation of blades or cutters Feeding in the same direction of rotation may pull your hand into the cut SECURING WORKPIECE When required use clamps or vises to secure workpiece A secured workpiece protects hands and frees both of them to operate the machine UNATTENDED OPERATION Never leave machine running while unattended Turn machine OFF and ensure all moving parts completely stop before walking away MAINTENANCE amp INSPECTION A machine that is not properly maintained may operate unpre dictably Follow all maintenance instructions and lubrication schedules to keep machine in good working condition Regularly inspect machine for loose bolts alignment of critical parts binding or any other conditions that may affect safe opera tion Always repair or replace damaged or mis adjusted parts before operating machine EXPERIENCING DIFFICULTIES If at any time you are experiencing difficulties performing the intended operation stop using the machine Contact our T
13. Power Lifting Equipment rated for at least PU nr As Needed e Machine Mounting Hardware As Needed e NGLI 2 Grease As Needed e ISO 68 or Equivalent Lubricant As Needed Unpacking Your machine was carefully packaged for safe transportation Remove the packaging materials from around your machine and inspect it If you discover the machine is damaged please imme diately call Customer Service at 570 546 9663 for advice Save the containers and all packing materials for possible inspection by the carrier or its agent Otherwise filing a freight claim can be difficult When you are completely satisfied with the condi tion of your shipment inventory the contents If any nonproprietary parts are missing e g a nut or a washer we will gladly replace them or for the sake of expediency replacements can be obtained at your local hardware store G9972Z 11 x 26 Lathe w Gearbox Inventory The following is a description of the main compo nents shipped with your machine Lay the compo nents out to inventory them Note f you can t find an item on this list check the mounting location on the machine or examine the packaging materials carefully Occasionally we pre install certain components for shipping purposes Inventory Figure 3 Qty A Lathe 11 x 26 not ebown 1 B Faceplate 8 ee 1 GE TOODO EE 1 D Steady Rest 1 E FOIOW e dE 1 F 4 Way Tool Post 1 GS JAN CARS nan
14. To set the compound slide angle 1 Loosen the two hex nuts on either side of the compound slide see Figure 33 F Ba re EE i Angle Scale a Figure 33 Compound slide angle controls 2 Use the angle scale shown in Figure 33 and the indicator mark on the cross slide to rotate the compound slide to the correct angle for your operation 3 Re tighten the two hex nuts to secure the slide in place 28 Tool Post The tool post included with the Model G9972Z lathe is a four way tool post The tool post is mounted on top of the compound slide and holds up to four tools at one time that can be indexed rotated to the workpiece as needed Tools Needed Qty Hex Wrench OA a een 1 To load and use the tool post 1 Loosen the tool post cap screws until the tool fits under the cap screws as shown in Figure 34 Note Jo properly secure the tool make sure a minimum of two post cap screws are hold ing the tool fk Rer TN TES EYE EE EE Cap Screws Lock Lever ie L P H ke A A Dee fe j i vi ei Se pt Figure 34 Tool post with a tool mounted 2 Evenly and firmly tighten the post cap screws until the tool is secure 3 Repeat Steps 1 2 for the remaining tools 4 Loosen the tool post lock lever rotate the tool post to index the desired tool to the workpiece then re tighten the lock lever Note The tool post is aligned in four rota tional positions by an indexing pin
15. birth defects or other reproductive harm Some examples of these chemicals are e Lead from lead based paints e Crystalline silica from bricks cement and other masonry products e Arsenic and chromium from chemically treated lumber Your risk from these exposures varies depending on how often you do this type of work To reduce your exposure to these chemicals Work in a well ventilated area and work with approved safety equip ment such as those dust masks that are specially designed to filter out microscopic particles Table of Contents INTRODUCTION tenets ieee 2 FINT ee eee eee eee ere nee eae eee 2 Contact 10 EE 2 Funetional OVervViIeN 2 Identification EE 3 Machine Data Sheet 4 SECTION 1 SAFETY ssnnennennnnennnnnnnnnnnnnnnnnnnn 6 Safety Instructions for Machinery 6 Additional Safety Instructions for Lathes 8 SECTION 2 CIRCUIT REQUIREMENTS 9 110V OPE IN 9 SECTION 3 SETUP eannnnnnnvennnnnnennnnnennnnnnnnn 10 Setup Safety 10 Items Needed for Getup 10 VED IG MAING NE 10 MENN EE 11 Clean EEE 11 Site Consideratons 12 Moving amp Placement 12 MOT Lure 13 Check Gearbox Ou 14 TESE RUN VE 14 Spindle Break In E 15 Carriage LOCK 15 Recommended Adjustments 15 SECTION 4 OPERATIONS nnnnernnnnnnnnnevnnnn 16 Operation Safety 16 BASIC COMORES 16 Chuck amp Faceplate Mounti
16. in the compound slide that engages indents in the tool post base G9972Z 11 x 26 Lathe w Gearbox Spindle Speed To set the correct spindle speed for your opera tion you will need to 1 Determine the spindle speed RPM needed for your workpiece mate rial and 2 configure the V belt for the calculated spindle speed Calculating the Correct Spindle RPM 1 Use the table in Figure 35 to determine the recommended cutting speed for the workpiece material Note Cutting speeds are expressed in sur face feet per minute SFM that the cutter moves against the workpiece Recommended Cutting Speeds Stainless Steel 60 180 Titanium 90 200 Note These values are based on HSS cutting tools For carbide cutting tools double the aver age speed These values are a guideline only Refer to the MACHINERY S HANDBOOK for more detailed information Figure 35 Recommend cutting speed table G9972Z 11 x 26 Lathe w Gearbox 2 Determine the final diameter in inches for the cut you intend to make Note For this step you will need to aver age out the diameters or work with the finish diameter Use the following formula to determine the correct spindle speed RPM for your opera tion Dia of Cut in inches x 3 14 RPM Double if using carbide cutting tool Example A You will finish cut 72 diameter piece of cast steel stock using an HSS cutting tool Step 1 150 SFM from chart x 4 600
17. machine or the manual Thank you again for your business and continued support We hope to serve you again soon CON TOOL WEBSITE Buy Direct and Save with Grizzly Trusted Proven and a Great Value Since 1983 Visit Our Website Today For Current Specials ORDER 24 HOURS A DAY 1 800 523 4777 ER AMERICAN VISA Mastercard GS NOVUS HEER
18. or alterations or lack of maintenance This is Grizzly s sole written warranty and any and all warranties that may be implied by law including any merchantability or fitness for any par ticular purpose are hereby limited to the duration of this written warranty We do not warrant or represent that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants In no event shall Grizzly s liability under this warranty exceed the purchase price paid for the product and any legal actions brought against Grizzly shall be tried in the State of Washington County of Whatcom We shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential damages arising from the use of our products To take advantage of this warranty contact us by mail or phone and give us all the details We will then issue you a Return Number which must be clearly posted on the outside as well as the inside of the carton We will not accept any item back without this number Proof of purchase must accompany the merchandise The manufacturers reserve the right to change specifications at any time because they constantly strive to achieve better quality equipment We make every effort to ensure that our products meet high quality and durability standards and we hope you never need to use this warranty Please feel free to write or call us if you have any questions about the
19. remov ing the fill plug do not remove the drain plug to drain the reservoir until you can success fully remove the fill plug This way you can still operate the lathe until the issue IS resolved 4 Hold the drain pan under the reservoir drain plug then remove the drain plug shown in Figure 68 and allow the oil to completely drain into the pan x Figure 68 Feed rate gearbox oil reservoir drain plug G9972Z 11 x 26 Lathe w Gearbox 5 While holding the pan under the drain hole Compound Slide pour approximately 1 2 quart of clean oil into the reservoir to flush out any sediment from Lubricant Qty along the bottom Way Oil very 8 Hours Thin Coat of Operation 6 Re install the drain plug and add oil to the reservoir until the oil level is centered in the Maintain a thin coat of way oil on the slide surface sight glass of the compound slide Use the handwheel to move the compound slide all the way toward you 7 Re install the fill plug and close the change see Figure 70 then wipe clean the bottom slide gear cover with a rag and mild solvent Apply the lubricant and move the compound slide back and forth to Longitudinal Leadscrew amp Carriage AEE NE Ol Rack ISO 68 or Every 8 Hours Thin Coat Equivalent of Operation Lubricant Maintain a thin coat of oil on the longitudinal leadscrew threads and the carriage rack see Figure 69 at all times Use a stiff brush and mild solvent to remove any debr
20. the workpiece onto the faceplate and clamp it in place with a min imum of three independent clamping devices see Figure 21 for an example Note Jake into account the rotation and cutting forces that will be applied to the workpiece when clamping it to the faceplate Figure 21 Faceplate with properly mounted workpiece clamped in four locations G9972Z 11 x 26 Lathe w Gearbox Centers The Model G9972Z lathe includes an MT 3 dead center for the tailstock quill and an MT 4 dead center for the spindle Matching tapers in the spindle and tailstock quill provide the locking action for installing the cen ters Before inserting any center or arbor make sure the mating surfaces are perfectly clean If oil or grit is present on the mating surfaces the tapers will not interlock or will be extremely dif ficult to remove These parts will last long and remain accurate if properly maintained Centers are most often installed in the tailstock quill or used with the faceplate See Figure 22 for examples r 3 A PE d NT ek G art IT 4 Mar ee a Af Figure 22 Centers installed in the tailstock quill and the spindle with a faceplate Live centers are typically built with bearings and spin during use so they do not need lubrication However dead centers do not spin during use and require the tip to be constantly lubricated with anti seize grease NOTICE To avoid premature wear of the dead center or damage
21. to blow away chips from the lathe to avoid the risk of Schedule For optimum performance from your machine follow this maintenance schedule and refer to any specific instructions given in this section flying metal debris injuring yourself or oth ers or driving the chips deep into the lathe mechanisms resulting in damage or prema ture wear Daily Check e Loose mounting bolts e Damaged or worn belts e Worn or damaged wires e Any other unsafe condition e Use a dry cloth to wipe off any remaining coolant at the end of the day Metal chips Every 6 8 Hours of Operation e Clean lathe e Lubricate lathe Pages 41 44 After First Three Months and Annually e Change feed rate gearbox oil Page 42 40 soaked with water based coolant left on the machine will invite oxidation and gummy resi due to build up around moving parts Follow Federal State and the manufacturer s requirements to properly dispose of used coolant and cleaning products Protect the unpainted metal surfaces on the lathe by wiping them clean at the end of oper ations Keep these surfaces especially the bedways rust free and working smoothly with regular applications of products like Model H8257 Primrose Armor Plate with Moly D Machine and Way Oil see ACCESSORIES on Page 37 G9972Z 11 x 26 Lathe w Gearbox Lubrication Your lathe has numerous moving metal to metal contacts that require proper lubrication to help ensure ef
22. to the workpiece always keep the dead center tip well lubricated during use G9972Z 11 x 26 Lathe w Gearbox Using a Center in the Spindle 1 DISCONNECT LATHE FROM POWER 2 Thoroughly clean the mating surfaces of the center and spindle then firmly insert the MT 4 dead center into the spindle Note When using the dead center in the spindle use a lathe dog so that your part will rotate with the spindle 3 To remove the center from the spindle insert a piece of round bar stock or similar tool through the outboard end of the spindle on the left side of the headstock then tap the center loose Note Hold onto the center as you tap it loose to avoid it dropping it and damaging the tip or the bedways Using a Center in the Tailstock 1 Feed the tailstock quill out about 1 then insert the MT 3 dead center into the quill 2 Position the tailstock so the center presses against the workpiece then lock the tailstock in place 3 Feed the quill and dead center into the workpiece then lock the quill in place Note The force against the mounted workpiece will fully seat the center s taper 4 To remove the center from the quill hold on to the center with one hand then retract the quill back into the tailstock until the center pops free 23 Offsetting Tailstock The tailstock can be offset slightly to cut shallow tapers When the tailstock is positioned toward the operator and away from the spind
23. 1 Mounting Workpiece in 3 Jaw Chuck 1 DISCONNECT LATHE FROM POWER 2 Use the chuck key to open the jaws until the workpiece sits flat against the chuck face evenly on the jaw steps or fits into the chuck hole and through the spindle 3 Close the jaws until they make light contact with the workpiece 20 E Rotate the chuck by hand to make sure all three jaws evenly contact the workpiece and the workpiece is centered lf the workpiece is off center loosen the jaws and adjust the workpiece Ilf the workpiece is centered fully tighten the jaws AWARNING Securely clamp your workpiece and remove the chuck key Thrown objects from a lathe can cause serious injury or M death to the operator and to bystanders many feet away Removing Jaws from 3 Jaw Chuck DISCONNECT LATHE FROM POWER Place a piece of wood below the chuck to protect the bedways Insert and turn the chuck key counterclock wise to back the jaws all the way out Clean the jaw mating surfaces then apply a thin coat of an anti rust protective lubricant Note Store the jaws in a place free from moisture and abrasives G9972Z 11 x 26 Lathe w Gearbox Installing Jaws into 3 Jaw Chuck 1 DISCONNECT MACHINE FROM POWER 2 Thoroughly clean debris and grime from the jaws and chuck jaw guides then apply a thin film of lubricant to the mating surfaces 3 Examine the jaws each is stamped with a number 1 3 4 Insert and rot
24. 1 H 4 Jaw Chuck Gi 1 I 3 Jaw Chuck Key ccccseeeeceeseeeseeeeeeees 1 J Dead Center MT 4 1 K External Jaws for 3 Jaw Chuck 3 L Dead Center MI 1 M Change Gears 28 35 63 69 70 77 78T Ree 1 Each N Screwdrivers Standard Phillips 1 Each O Hex Wrenches 3 4 5 6 8mm 1 Each P Wrenches 8 10 12 14 17 19mm 1 Each Q 4 Jaw Chuck key 1 R V belt 3L290 not Shown 1 S Splash Pan not shown cccceeeeeee ees 1 Figure 3 Model G9972Z inventory G9972Z 11 x 26 Lathe w Gearbox Clean Up The unpainted surfaces are coated with a waxy oil to prevent corrosion during shipment Remove this protective coating with a solvent cleaner or degreaser such as shown in Figure 4 For thor ough cleaning some parts must be removed For optimum performance clean all moving parts or sliding contact surfaces Avoid chlo rine based solvents such as acetone or brake parts cleaner that may damage painted surfac es Always follow the manufacturer s instructions when using any type of cleaning product AWARNING Gasoline and petroleum products have low flash points and can explode or cause fire if used to clean machinery DO NOT use these products to clean the machinery CAUTION Many cleaning solvents are toxic if inhaled Minimize your risk by only using these products in a well ventilated area
25. 4 JAW CHUCK 6 1 4 11 DEAD CENTER MT 3 121 TOOL BOX 122 FACEPLATE 8 123 3 JAW CHUCK REVERSE JAW SET 136 137 138 1139 124 P997221124 3 JAW CHUCK KEY 125 126 CARBIDE TIPPED DEAD CENTER MT 3 127 128 129 G9972Z 11 x 26 Lathe w Gearbox EN 69 Label Placement 1205 1204 1203 1202 REF PART DESCRIPTION REF PART DESCRIPTION 203 P9972Z1203 MACHINE ID LABEL 204 P997271204 THREAD DIAL CHART LABEL 205 P9972Z1205 PINCH HAZARD LABEL HORIZ AWARNING Safety labels warn about machine hazards and ways to prevent injury The owner of this machine MUST maintain the original location and readability of the labels on the machine If any label is removed or becomes unreadable REPLACE that label before using the machine again Contact Grizzly at 800 523 4777 or www grizzly com to order new labels 70 EN G9972Z 11 x 26 Lathe w Gearbox CUT ALONG DOTTED LINE Grizzlg WARRANTY CARD Industrial Inc Name Street City State Zip Phone Email Model Order Serial The following information is given on a voluntary basis It will be used for marketing purposes to help us develop better products and services Of course all information is strictly confidential 1 How did you learn about us Advertisement Friend Catalog Card Deck Website Other 2 Which of the following magazines do you subscribe to Cabinetmaker amp FDM Popular Science Wooden Boat Family Handyman Popular Woodworking Woods
26. 5 1 17 1 1 2 2 22 23 24 25 CO KR CO SIG VOD CA CA O CO OD NO OD oo QD Ex amp CO O Jv CO O0OJ O 8 LA LA 60 9 REF PART DESCRIPTION 27 P9972Z0327 KEY 4 X 4 X 10 28 P9972Z0328 29 P997220329 30 P9972Z0330 3 3 33 34 _ P9972Z0334 35 _ P9072Z0335 36 _ P9972Z0336 37 _ P9972Z0387 38 P997270338 P9972Z0339 P9972Z0340 4 STEEL BALL 5MM 42 P997220342 43 P997220343 P9972Z0344 4 46 P997220346 47 48 P997270348 49 P997220349 50 SHIFTING FORK LA O CO CO N CA Q gt AJIO AJO O 0 O O1 OO S f G9972Z 11 x 26 Lathe w Gearbox Apron Breakdown 446 442 1 D Y Wa SR D G9972Z 11 x 26 Lathe w Gearbox EN 61 Apron Parts List REF PART DESCRIPTION REF PART DESCRIPTION 62 EN G9972Z 11 x 26 Lathe w Gearbox Saddle amp Cross Slide Breakdown 519 REF PART DESCRIPTION REF PART DESCRIPTION SADDLE CROSS SLIDE CROSS SLIDE GIB CROSS SLIDE LEADSCREW NUT CROSS SLIDE LEADSCREW CROSS SLIDE LEADSCREW BRACKET CAP SCREW M8 1 25 X 25 G9972Z 11 x 26 Lathe w Gearbox EN 63 Compound Slide amp Tool Post Breakdown 622 614 REF PART DESCRIPTION 606 P997220606 LEADSCREW NUT 609 P997220609 FLATWASHER 10MM REF 620 627 PART D
27. Depth front to back x Height naannnnennnnennnnnnnnnnnnnnnnnnnnnnnnnnnnrensnrrrennrneennnnne 51 x 23 x 19 in FEN VG 51 x 18 in Shipping Dimensions Ne RE ETE EE EE EE Wood Crate Eaa n A T E E E A E A T E AA A A E E E E E Machine WOOR GE 560 Ibs F dde 58 x 30 x 26 in lee RR edel EEE EEE EE EEE NE EE A E ETT Yes Electrical Power REQUIFEMENL cccceccceecececeeeseeceeeeeeeeseeeceeeessueeeeeseueesueesaeecsaeesueesueeseuesseeeseeeesaes 110V Single Phase 60 Hz MN ee 110V Full Load Current FU NG EEE EEE EEE fous 13 6A life ag Ge EE EE ne 20A CEN TY OG rekke Cord amp Plug Power Cord IN6UdEA tee eeben ene med seeks kededkedak stndeciad dedssbaenssdedichaneandscdcdasssaiaess dived arrra nerunt renn eege Yes POWET Cod LEN EE 4 ft Power Eeer LE 12 AWG OO RO EE NE EE NE EN ENE Yes FEV NT 6 Ze Fug EOS EE EE EV EE EE ET EE EEE 5 15 MAT ae a oo ON OFF Push Button Switch w Safety Cover Motors Main TYD a rl ee TEFC Capacitor Start Induction KEIER EE 1 HP Kat Single Phase L E e EE EE NE ER 13 6A E3 o EE 1725 RPM Seen Belt Drive PETN Shielded amp Permanently Lubricated Main Specifications Operation Info ONE nee ere eon nt ners E ey ne ee eee eee E 10 63 in Distance Between Centers cccccccseecccceseececaeeeeeeseeeeceaaeeecessasecesaeeeeessueeeeeseueeesseaeeessaaeessueeeesseeeeesaaneeseas 26 in Swing Over Cross E 6 3 8 in S RE ee 6 3 8 in Maximum Tool Ee 1 2 in else Eine Trave E 3 1 2 in
28. E deer EE 23 in Eelere Eege 7 in Other NTS G9973 4 EN G9972Z 11 x 26 Lathe w Gearbox Headstock Info EE Ee 1 in NE A A E E E E E OR 1 3 4 in SC E MT 4 Spindle 0 sn dns messe aE eR AA EVES EEEE OEO REEE EEE AER AEn ELA Ia ARSENE HIROD 8 TPI Number eng elle EE 6 NE 0121016 r E rane acntesaaatahetteeaugsantenns 150 2400 RPM SDS Ke Threaded SOG ete ATOS EE EE FEE Tapered Roller Tailstock Info pe tole GE ee aa celte EEE ea EEE 2 1 2 in HE Te 0 GET 0 EE a mn in den MT 3 Tailstock Barrel DIGMICTCN PR scien deundndeeiendemeeilasueusiten Giechionetinmaateaetedessaecaiacataedis 1 125 in Threading Info NUDE OF Longitudinal FE E 12 Range of Longitudinal EE 0 0022 0 0150 in rev N mBEr of neh TCAD gt RE E AEAEE NE NEENA DERREN EAE Aaii 24 Ranga or neh WiC ACS EE 8 56 TPI Number of Metric Un E 10 Range OF Motie ele Te E 0 5 3 0 mm Dimensions BEY I E 6 in Carnage EET RTE EE 3 4 in GAG er W ER en E ee E a 8 TPI Carriage Leadscrew Lengih AEN 34 1 2 in steady Rest e er A ER 1 4 2 in Follow RES PC ADACINE dns rca tenseur tant 1 4 2 in FN 8 in Construction gt SEE sin EE E E A Formed Steel Fead 1910 SR EE EE Cast Iron 06 EE EE EE iasennenessyanne Steel Eege Hardened and Precision Ground Cast Iron Zeie Cast Iron FANEN Epoxy Other Specifications CON OP OA A po a ane tee De ne dead a ne onde China L AUTRE I ER EE EE EEE EEE 1 Year Approximate Assembly amp Setup Time c
29. ESCRIPTION CAP SCREW M5 8 X 30 P9972Z0616 HEX NUT M5 8 64 E G9972Z 11 x 26 Lathe w Gearbox Tailstock Breakdown 706 701 REF PART DESCRIPTION REF PART DESCRIPTION 715 716 G9972Z 11 x 26 Lathe w Gearbox EN 65 Bed Breakdown REF PART DESCRIPTION REF PART DESCRIPTION P9972Z0805 LEADSCREW END BRACKET P9972Z0813 FLAT WASHER 8MM P9972Z0806 BALL OILER P9972Z0814 HEX NUT M8 1 25 P9972Z0807 CAP SCREW M6 1 X 20 815 P9972Z0815 CHIP PAN P9972Z0808 HEX NUT M10 1 5 66 EN G9972Z 11 x 26 Lathe w Gearbox Steady Rest Breakdown 907 J 908 REF PART DESCRIPTION REF PART DESCRIPTION STEADY REST CASTING 906 P997220906 ADJUSTING SCREW FINGER FINGER T BOLT LOCK WASHER 8MM 909 P997220909 FLAT WASHER 12MM 9 905 P9972Z0905 HEX NUT M6 1 Follow Rest Breakdown 1004 REF PART DESCRIPTION REF PART DESCRIPTION 1001 P9972Z1001 1005 P9972Z1005 HEN NUT M6 1 1002 P997271002 1006 P9972Z1006 FLAT WASHER 8MM 1003 P9972Z1003 P9972Z1007 CAP SCREW M8 1 25 X 35 1004 P9972Z1004 1008 P9972Z1008 FLAT WASHER 6MM G9972Z 11 x 26 Lathe w Gearbox EN 67 Electrical Components Breakdown 1105 1106 ge S 1113 1106 1 1114 1101 1107 1108 REF PART DESCRIPTION REF PART DESCRIPTION 68 EN G9972Z 11 x 26 Lathe w Gearbox Accessories Breakdown 1121 REF PART DESCRIPTION REF PART DESCRIPTION 11
30. Install the 35T change gear in position a and the NEVER move the feed rate dials while the 70T change gear in position P lathe is running and NEVER force the dials when shifting If the dial will not engage Step 4 rotate the spindle by hand while keeping Turn the left feed rate dial to II and the right dial light pressure on the dial As the spindle to B see Figure 44 rotates the feed rate gears will align and the dial will slip into position Note t may be necessary to Jog the spindle by hand to mesh the feed rate gearing and complete the setting of the dials Example of Setting Feed Rate You will rough cut the length of an aluminum workpiece reducing the diameter Step 1 Examine the recommended feed rate table Figure 40 on Page 32 to find the feed rate should be 0 015 0 025 IPR Step 2 Select the nearest feed rate from the feed rate chart Figure 42 on Page 32 for the lathe In this case it will be 0 0150 IPR 39 707 _35 70 I 1 7513 50 Figure 45 Feed rate chart for threading 34 EN G9972Z 11 x 26 Lathe w Gearbox Threading Controls The purpose of this subsection is to orient you with the controls used when threading and how to use the threading dial on this machine Power Feed Lever The power feed lever must be in the disengaged position down and horizontal for threading oper ations or the half nut will not engage with the leadscrew see Figure 46 Figure 46
31. QUIREMENTS 110V Operation AWARNING Serious personal injury could occur if you connect the machine to power before com pleting the setup process DO NOT connect the machine to the power until instructed later in this manual AWARNING Electrocution or fire could result if machine is not grounded and installed in compliance with electrical codes Compliance MUST be verified by a qualified electrician Full Load Amperage Draw This machine draws the following amps under maximum load Amp D 13 6 Amps Power Supply Circuit Requirements You MUST connect your machine to a grounded circuit that is rated for the amperage given below Never replace a circuit breaker on an existing cir cuit with one of higher amperage without consult ing a qualified electrician to ensure compliance with wiring codes If you are unsure about the wiring codes in your area or you plan to con nect your machine to a shared circuit consult a qualified electrician Minimum Circuit Gze 20 Amps G9972Z 11 x 26 Lathe w Gearbox Power Connection Device The Model G9972Z comes with a 5 15 plug simi lar to Figure 2 to connect the machine to power GROUNDED 5 15 RECEPTACLE Grounding Prong Neutral Hot Figure 2 Typical 5 15 plug and receptacle CAUTION This machine MUST have a ground prong in the plug to help ensure that it is grounded DO NOT remove ground prong from plug to fit into a two pronged outlet If the plug wil
32. TING A CUTTING TOOL CHUCK CRASH Always disengage the power feed and half nut after completing a job 9 AVOIDING STARTUP INJURIES Make sure the workpiece cutting tool and tool post have adequate clearance before start ing the lathe Check the chuck saddle clearance before starting the lathe Make sure the spindle RPM is set correctly for the workpiece diameter before starting the lathe Large parts can be ejected from the chuck if the chuck speed is set too high CHUCK SAFETY Chucks are surprisingly heavy and awkward to hold so protect your hands and the bedways Always use a chuck cradle or piece of plywood over the bedways 11 WORKPIECE SUPPORT Support a long workpiece if it extends outboard from the headstock so it will not wobble violently when the lathe is turned ON If the workpiece extends more than 2 5 times its diameter from the chuck support it by a center or steady rest or it may deflect and fall out of the chuck while cutting MAINTAINING A SAFE WORKPLACE Never leave lathe unattended while it is run ning CAUTION No list of safety guidelines can be complete Every shop environment is different Always consider safety first as it applies to your individual working conditions Use this and other machinery with caution and respect Failure to do so could result in serious per sonal injury damage to equipment or poor work results G9972Z 11 x 26 Lathe w Gearbox SECTION 2 CIRCUIT RE
33. Technical Support at 570 546 9663 COLOR KEY YELLOW te PURPLE PINK LIGHT BLUE BLUE WHITE QUOISE Gi G9972Z 11 x 26 Lathe w Gearbox Wiring Diagram SS Shown From Behind Si Motor ON OFF Switch Switch EX Spindle Switch Switch D fe Di Fw PA et i E L Ground N I on Run Capacitor 20 MFD 450VAC Be O O Q O Le D pen OU 150 MFD 265 VAC Go Figure 84 Electrical box wiring NEMA 5 15 Plug As Recommended Motor 1HP 110V Figure 85 Motor wiring G9972Z 11 x 26 Lathe w Gearbox D READ ELECTRICAL SAFETY 55 ON PAGE 222 56 SECTION 9 PARTS Headstock Breakdown EN G9972Z 11 x 26 Lathe w Gearbox Headstock Parts List REF PART DESCRIPTION 6 ___ P997270006 FLATWASHER6MM 8 ___ P997270008 THREADED BLOCK G9972Z 11 x 26 Lathe w Gearbox 9 REF PART DESCRIPTION 57 Change Gears Breakdown 107 REF PART DESCRIPTION 217 REF PART DESCRIPTION P9972Z0209 BALL OILER 6MM 58 9 G9972Z 11 x 26 Lathe w Gearbox Feed Rate Gearbox Breakdown 301 302 G9972Z 11 x 26 Lathe w Gearbox EN 59 Feed Rate Gearbox Parts List REF PART DESCRIPTION 01 02 03 0 0 0 0 08 0 10 1 1 1 1 1
34. adscrew should turn clock wise Note Listen to and watch for abnormal noises or actions The machine should run smoothly with little or no vibration or rubbing noises Strange or unusual noises should be inves tigated and corrected before operating the machine further Always disconnect the machine from power when investigating or correcting potential problems 9 Flip the spindle switch to the center O posi tion and wait for the spindle to come to a complete stop 10 Turn the spindle switch to the left L posi tion the spindle should rotate clockwise and the leadscrew should turn counterclockwise G9972Z 11 x 26 Lathe w Gearbox 11 Press the red button on the motor ON OFF switch the motor stops the emergency stop fea ture of the switch is working as designed lf the motor does NOT stop immediately disconnect the machine from power The emergency stop feature is not working correctly This safety feature must work properly before proceeding with regular operations Call Tech Support for help 12 After successfully completing all the Test Run steps proceed to Spindle Break In Spindle Break In NOTICE Successfully complete all of the spindle break in steps to avoid rapid deterioration of the spindle bearings and other related parts 1 DISCONNECT LATHE FROM POWER 2 Make sure the lathe is properly lubricated refer to Lubrication on Page 41 for detailed instructions 3 Configur
35. arbox 10 11 Since it takes great effort to turn the inner Spanner nut you may find it difficult to know if you have gone past the zero end play point or not It is easiest to have someone watch the dial while you tighten the inner spanner nut If you think you may have gone past the zero end play point take the time to unload the bearings as described earlier then re tighten the inner spanner nut until you know you have reached the correct setting When you are confident that you have adjust ed the inner spanner nut until zero spindle end play and preload exist tighten the inner Spanner nut an additional Le of a turn clock wise to introduce the correct amount of spindle bearing preload see Figure 82 Inner Spanner Nut S Figure 82 Turning inner spanner nut 1 4 clockwise Without causing the inner spanner nut to tighten any farther install and tighten the outer spanner nut against the inner nut NOTICE Do not overtighten the outer spanner nut because additional pressure can force the bearings even tighter against the races in the headstock and cause the headstock to compress crack or cause bearing failure G9972Z 11 x 26 Lathe w Gearbox 9 To confirm that the spindle bearings are cor rectly preloaded 1 Re attach all removed lathe components and prepare it for operation Install the chuck and tighten the jaws into the center Set the spindle speed to a medium setting C
36. ate the chuck key clockwise until you see the beginning of the scroll gear lead thread come into view through the jaw guide then back it off slightly until it disap pears see Figure 18 Scroll Gear Lead Thread 1 A a r Figure 18 Installing the first jaw in the 3 jaw chuck 5 Slide the 1 jaw into the jaw guide and hold it firmly against the scroll gear threads then rotate the chuck clockwise a couple of turns to send the lead thread through the jaw 6 Repeat Steps 4 5 for jaw 2 and 3 in sequence If installed correctly the three jaws will con verge evenly at the center of the chuck lf the jaws do not come together evenly remove them make sure the numbers of the jaws and jaw guide match then re install the jaws G9972Z 11 x 26 Lathe w Gearbox 4 Jaw Chuck The 4 jaw chuck included with this lathe features independently adjustable hardened steel jaws Each jaw can be removed from the chuck body and reversed for a wide range of work holding configurations Install the 4 jaw chuck on the spindle according to the instructions on Page 18 AWARNING Large chucks are very heavy Always get assistance when removing or installing large chucks to prevent personal injury or damage to the chuck or lathe Tools Needed Qty 4 Jaw Chuck Key rrrrnrronnnrrnrarernnnnonnnnrnnnnnennnnen 1 To mount a workpiece in the 4 jaw chuck 1 DISCONNECT LATHE FROM POWER 2 Plac
37. cccccceccccssseeeeceseeececeesececseueeeesseaseeessuaeceeeseaseeeesuecessseaseeessuseeeessagees 1 Hour Beal NUMDEF LOCAUO en ne den nn tte NE te E ID Label SOS OO Nee EE No E En EE No Features Easy to Read Control Panel Emergency Stop Long Bed Accommodates 26 Between Centers Threading Dial G9972Z 11 x 26 Lathe w Gearbox EN SECTION 1 SAFETY AWARNING For Your Own Safety Read Instruction Manual Before Operating this Machine The purpose of safety symbols is to attract your attention to possible hazardous conditions This manual uses a series of symbols and signal words intended to convey the level of importance of the safety messages The progression of symbols is described below Remember that safety messages by themselves do not eliminate danger and are not a substitute for proper accident prevention measures T Indicates an imminently hazardous situation which if not avoided DANG E R WILL result in death or serious injury AW AR N NG Indicates a potentially hazardous situation which if not avoided COULD result in death or serious injury C AUTI ON Indicates a potentially hazardous situation which if not avoided MAY result in minor or moderate injury It may also be used to alert against unsafe practices NOTICE This symbol is used to alert the user to useful information about proper operation of the machine AWARNING Safety Instructions for Machinery OWNER S MANUAL Read and understand this own
38. d instructions but it also depends on spindle speed NOTICE Feed rate is based on the spindle speed High feed rates result in a rapidly moving carriage Pay close attention to the feed rate you have chosen and keep your hand poised over the power feed lever Failure to fully understand this could cause the car riage to crash into the spindle or tailstock resulting in severe damage to the lathe G9972Z 11 x 26 Lathe w Gearbox When the proper feed rate has been selected for the operation simply move the power feed lever up to engage the carriage with the power feed see Figure 39 Move the lever down to disen gage the power feed When the spindle is rotating counterclockwise towards the operator the carriage will move toward the spindle when engaged with the power feed Conversely when the spindle is rotating clockwise away from the operator the carriage will move toward the tailstock Note f the spindle is not turning you may have to manually jog the carriage to engage the apron gearing with the leadscrew ra p d Fee E Be es SE ERI s k L Atta ee Wren Disengaged Off KE n EL LS Pr Jeer i A y i F it Bia T d TO Figure 39 Power feed lever engaged and disengaged NOTICE NEVER attempt to engage the carriage power feed lever up and the half nut lever down at the same time Always disengage the half nut lever up before moving the power feed lever up Otherwise sev
39. d properly slide or carriage adjust gibs Page 49 feed hard to move 5 Gibs are too tight 2 Adjust gibs Page 49 3 Leadscrew backlash setting too tight cross 3 Properly adjust cross slide leadscrew backlash slide only Page 48 4 Bedways are dirty dry 4 Clean and lubricate bedways 5 Gearing is at fault 5 Inspect replace gearing Inaccurate turning 1 Tailstock not properly aligned with 1 Properly align tailstock with headstock Page 24 results from one end headstock of workpiece to the other Chuck jaws will 1 Chips debris lodged in jaws 1 Remove jaws clean and lubricate jaws scroll gear not move or do not threads and chuck then replace jaws move easily Tailstock quill will not 1 Quill lock is tightened down 1 Turn quill lock counterclockwise to loosen feed out of tailstock G9972Z 11 x 26 Lathe w Gearbox EN 47 Cross Slide Backlash Adjustment Ta RB Ze A Adjustment Screw Les Le de Backlash is the amount of play in a leadscrew It is felt when turning a handwheel in one direction then turning it in the other direction The distance that the handwheel moves without moving the leadscrew or components is the backlash When adjusting backlash tighten the compo nents enough to remove excessive backlash but not so much that the components bind the leadscrew making it hard to turn Overtightening will cause excessive wear to the sliding block and Figure 73 Cr
40. e a piece of wood below the chuck to protect the bedways 3 Use the chuck key to open each jaw until the workpiece can lie flat against the chuck face or evenly on the jaw steps Continued on next page gt 01 4 With assistance to hold the workpiece in place tighten each jaw in small increments After adjusting the first jaw continue tight ening in opposing sequence as shown in Figure 19 until the workpiece is firmly secure in the desired position Figure 19 Tightening sequence for the 4 jaw chuck 5 Make fine adjustments to the workpiece posi tion by using a test indicator and adjusting the jaws until the workpiece is precisely aligned see Figure 20 for an example Figure 20 Example of aligning workpiece with a test indicator on a 4 jaw chuck e TS D9 AWARNING Always use a low spindle speed when machining non cylindrical or off center workpieces to avoid ejecting the workpiece from the holding device at a high rate of speed Failure to heed this warning could lead to serious personal injury death or property damage Faceplate The faceplate can be used for mounting non cylin drical parts or for off center turning by clamping the workpiece to it Refer to the ACCESSORIES section on Page 38 for clamping options To mount a workpiece to the faceplate 1 DISCONNECT LATHE FROM POWER 2 Place a piece of wood below the chuck to protect the bedways 3 With assistance place
41. e the spindle belt for the lowest spin dle speed refer to Spindle Speed on Page 29 for detailed instructions 4 Connect the machine to power turn the spin dle switch to the R position to start spindle rotation in the counterclockwise direction then let the lathe run for 10 minutes 5 Stop the spindle rotation and wait until the spindle has come to a complete stop 6 Start spindle rotation in the opposite clock wise direction and let the lathe run for 10 minutes 7 Disconnect the machine from power then repeat Steps 4 6 for each of the spindle speeds G9972Z 11 x 26 Lathe w Gearbox 8 Turn the lathe OFF The spindle break in is complete and your lathe is ready for opera tion Carriage Lock The carriage is supplied with a lock bolt on the front right hand side of the saddle See Figure 10 This bolt locks the carriage in place for increased rigidity when making face cuts This lock bolt must be loosened before attempting to move the car riage manually or with the power feed ETES paa Figure 10 Carriage lock bolt Recommended Adjustments For your convenience the adjustments listed below have been performed at the factory However because of the many variables involved with shipping we recommend that you at least verify the following adjustments to ensure the best possible results from your new machine Step by step instructions for these adjustments can be found in the SERVICE section star
42. ears gross ly out of alignment move the tailstock until it appears to be centered refer to the previous subsection for detailed instructions Make a dead center by turning a shoulder on a similar piece of round bar stock then flip the piece over in the chuck and turn a 60 point See Figure 24 Note As long as the fabricated dead center remains in the chuck the point of this center will remain true to the spindle axis or center line Keep in mind that the point will have to be re finished whenever it is removed and re installed in the chuck Figure 24 Fabricated dead center G9972Z 11 x 26 Lathe w Gearbox 6 Figure 25 Bar stock mounted between centers Install the MT 3 dead center in the tailstock quill and lubricate the tip Attach a lathe dog at the spindle end of the bar stock from Step 2 then mount it between the centers see Figure 25 for an example am ie vk Ida Be e H a sie Turn approximately 0 010 off the diameter of the entire length of the workpiece Mount a dial indicator so that the plunger is on the tailstock barrel Measure the diameters of both ends of the workpiece the machined workpiece is thicker at the tailstock end move the tailstock toward the operator half the distance of the amount of taper see Figure 26 Move tailstock in half the distance of the taper Looking down
43. echnical Support Department at 570 546 9663 AWARNING Additional Safety Instructions for Lathes UNDERSTANDING THE MACHINE Read and understand this manual before operat ing the machine CLEANING MACHINE To avoid lacera tions do not clear chips by hand Use a brush and never clear chips while the lathe is operating USING CORRECT TOOLING Always select the right cutter for the job and make sure cutters are sharp The right tool decreases strain on the lathe components and reduces the risk of unsafe cutting ELIMINATING A PROJECTILE HAZARD Always remove the chuck key after use and never walk away from the lathe with the chuck key installed SECURING A WORKPIECE Make sure the workpiece is properly held in the chuck before starting the lathe A workpiece thrown from the chuck could cause severe injury AVOIDING OVERLOADS Always use the appropriate spindle speed and feed rate AVOIDING ENTANGLEMENT INJURIES Never attempt to slow or stop the lathe chuck and tie back long hair ponytails loose clothing and sleeves so they do not dangle AWARNING Like all machinery there is potential danger when operating this machine Accidents are frequently caused by lack of familiarity or failure to pay attention Use this machine with respect and caution to decrease the risk of operator injury If normal safety pre cautions are overlooked or ignored serious personal injury may occur 9 10 12 8 PREVEN
44. ere damage to the lathe could occur Bd Feed Rate Feed rate is the speed the tool travels during the operation and is expressed in inches of carriage travel per revolution of the spindle IPR and is set by configuring the change gears and feed rate dials The correct feed rate is determined by the workpiece material the type of tooling used and the desired finish The table in Figure 40 shows the recommended feed rate for turning most met als Recommended Feed Rates Tool Feed Rate IPR Rough Cuts Finish Cuts 0 015 0 025 0 005 0 010 0 015 0 025 0 005 0 010 0 015 0 025 0 003 0 010 0 010 0 020 0 004 0 008 0 015 0 025 0 005 0 010 0 010 0 020 0 003 0 010 0 010 0 020 0 003 0 010 0 010 0 020 0 003 0 010 0 010 0 020 0 003 0 010 0 010 0 020 0 003 0 010 0 010 0 020 0 003 0 010 0 010 0 020 0 003 0 010 0 010 0 020 0 003 0 010 Note These values are a guideline only Refer to the MACHINERY S HANDBOOK for more detailed information Figure 40 Recommended feed rate table AWARNING The V belt change gears and pulleys represent a serious entanglement hazard when the lathe is running Always dis connect the lathe from power before opening the change gear cover Use Figure 41 to identify the change gears and their positions Note This lathe is shipped with the 24 tooth gear installed in the a position and the 84 tooth gear in the b position
45. ers manual BEFORE using machine Untrained users can be seriously hurt EYE PROTECTION Always wear ANSI approved safety glasses or a face shield when operating or observing machinery to reduce the risk of eye injury or blindness from fly ing particles Everyday eyeglasses are not approved safety glasses HAZARDOUS DUST Dust created while using machinery may cause cancer birth defects or long term respiratory damage Be aware of dust hazards associated with each workpiece material and always wear a NIOSH approved respirator to reduce your risk 9 WEARING PROPER APPAREL Do not wear clothing apparel or jewelry that can become entangled in moving parts Always tie back or cover long hair Wear non slip footwear to avoid accidental slips which could cause a loss of workpiece control HEARING PROTECTION Always wear hear ing protection when operating or observiing loud machinery Extended exposure to this noise without hearing protection can cause permanent hearing loss MENTAL ALERTNESS Be mentally alert when running machinery Never operate under the influence of drugs or alcohol when tired or when distracted G9972Z 11 x 26 Lathe w Gearbox AWARNING Safety Instructions for Machinery DISCONNECTING POWER SUPPLY Always disconnect machine from power supply before servicing adjusting or changing cutting tools bits blades cutters etc Make sure switch is in OFF position before reconnecting to avoid an u
46. ficient and long lasting operation Other than the lubrication points covered in this section all other bearings are internally lubricated and sealed at the factory Simply leave them alone unless they need to be replaced Before adding lubricant clean away any debris and grime from the lubrication point to avoid con taminating the lubricant and increasing wear of the moving parts DISCONNECT THE LATHE FROM POWER BEFORE PERFORMING LUBRICATION Ball Oilers ISO 68 or Every 8 Hours 1 squirt Equivalent of Operation from Oil Lubricant Can Wipe clean and lubricate the ball oilers shown in Figures 62 66 To insert the oil depress the ball with the tip of an oil can and squirt once ot gt y AN s a 7 AR AN vi s Kl F lt 2 Ball Oilers LS ai NA eet TON 2 vel e Ku ne R I ig DA p OF C at ze BE et CAF 15 1 4 ich e eg gt d Dw OH pe Eg H A main KR FF gt ni 6 CSC at j SR S Cile Figure 62 Change gear ball oilers Follow reasonable lubrication practices as outlined in this manual for your lathe Failure to do so could lead to premature failure of your lathe and will void the war ranty G9972Z 11 x 26 Lathe w Gearbox NI Z S a rs Ae ks 2 aa r 7 La SE a ji y oilers E Ball Oilers Wes Le a Ki Figure 66 Tailstock quill and leadscrew ball TARN E Mt di gt 4 Ball Oilers Ky 3 Ball Oilers
47. for your lathe Failure to do so could lead to premature failure of your lathe and will void the war ranty G9972Z 11 x 26 Lathe w Gearbox SECTION 7 SERVICE Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel ops If you need replacement parts or you are unsure of your repair skills then feel free to call our Technical Support at 570 546 9663 Troubleshooting Motor amp Electrical Machine does not start or a breaker trips Machine has vibration or noisy operation incorrectly Start capacitor is at fault Wall fuse or circuit breaker is blown or tripped Motor connection is wired incorrectly Power supply is at fault or is switched OFF Motor ON OFF button is at fault Centrifugal switch is at fault Spindle switch is at fault Cable or wiring is open or has high resistance Motor is at fault Motor or component is loose V belt worn damaged or loose Motor fan is rubbing on fan cover Pulley set screws or keys are missing or loose Machine is incorrectly mounted Cutting tool is chattering Workpiece or chuck is at fault Spindle bearings are at fault Motor bearings are at fault Test power plug and receptacle for good contact and correct wiring Test capacitor and replace if necessary Make sure circuit breaker fuse is sized correctly for machine load replace faulty breaker C
48. from above Figure 26 Tailstock adjustment toward the operator viewed from above G9972Z 11 x 26 Lathe w Gearbox lf the machined workpiece is thinner at the tailstock end move the tailstock away from the operator half the distance of the amount of taper see Figure 27 Move tailstock in half the distance of the taper Looking down from above Figure 27 Tailstock adjustment away from the operator viewed from above Refer to Offsetting Tailstock on Page 24 for making adjustments to the tailstock position Turn another 0 010 off the diameter of the workpiece then re check the taper Repeat this process as necessary until the desired amount of accuracy is achieved DEG Drilling with Tailstock The tailstock can be used to drill holes by mounting a drill bit in the tailstock rotating the workpiece with the spindle then using the tailstock quill handwheel to advance the drill bit into the workpiece See Figures 28 29 for examples of drill chuck and tapered drill bit installation Figure 29 Example of drill bit installation 26 Steady Rest The steady rest serves as a support for long slender workpieces where the length to diameter ratio is 3 1 or greater The steady rest can be posi tioned anywhere along the length of the bedway Tools Needed Qty Wrench A 1 To install and use the steady rest 1 Remove the clamp hex nut flat washer and
49. g a silicon carbide grinding wheel G8235 37 on your grinder Figure 51 H2670 HSS Square Tool Bits Call V 800 523 417 77 Vo G9972Z 11 x 26 Lathe w Gearbox H8257 Primrose Armor Plate with Moly D Machine and Way Oil 1 Quart This superior machine and way lubricant prevents stick slip and chatter due to anti friction capa bilities resulting in greater precision machining capabilities Provides the thinnest oil film pos sible while effectively providing needed lubrication and rust corrosion protection Adhesive cohesive components are added for vertical surfaces Resists squeeze out running dripping and non gumming This is good stuff use it on my lathes at home S Balolia President r d WC Ca hs Te ef no S e One Ge ue hee La Figure 52 Primrose Armor Plate Lubricant G9849 Magnetic Base Dial Indicator Combo Precision measurements and setups have never been so easy Magnetic base engages with just the turn of a switch and allows pinpoint adjust ment The dial indicator features 0 1 travel and has a resolution of 0 001 This fine set includes a molded case for protection and convenience Figure 53 G9849 Magnetic Base Dial Indicator Combo 07 G1070 MT3 Live Center Set A super blend of quality and convenience this live center set offers seven interchangeable tips High quality needle bearings prolong tool life and special tool steel body and tips are precision
50. he bottom base is the carriage which moves left and right and is equipped with a power feed system for automated cutting and threading operations The middle base is the cross slide which moves in and out The top base is the compound slide which moves diagonally The lathe is also outfitted with a support device called a tailstock The tailstock is mounted on the lathe bed opposite of the spindle and it moves toward or away from the spindle and can be locked against the bed to firmly support the end of a long workpiece G9972Z 11 x 26 Lathe w Gearbox Identification Figure 1 Model G99727 identification A Change Gear Cover N Splash Guard B Headstock O Tailstock Lock Bolt C Motor ON OFF Switch P Compound Slide amp Handwheel D Spindle Switch Q Thread Dial E Threaded Spindle 1 8 MT 4 R Half Nut Lever F 3 Jaw Chuck 5 S Power Feed Lever G Steady Rest T Cross Slide Handwheel H Follow Rest U Carriage Handwheel I 4 Way Tool Post V Leadscrew 8 x 341 J Tailstock Quill W Right Feed Rate Dial K Quill Lock X Feed Rate Gearbox Oil Sight Glass L Tailstock Y Left Feed Rate Dial M Quill Handwheel Z Chip Pan G9972Z 11 x 26 Lathe w Gearbox EN 3 7 C Grizzly ACHINE DATA Industrial Inc Customer Service 570 546 9663 To Order Call 800 523 4777 Fax 800 438 5901 MODEL G9972Z 11 X 26 BENCH LATHE WI GEARBOX Product Dimensions NA 490 Ibs Width side to side x
51. he available speeds Use your best judgement when choosing either a higher or lower spindle speed Figure 38 V belt in the B C configuration Note There is hex nut on either end of the idler pulley adjustment stud that is loosened when adjusting the idler pulley 30 EN G9972Z 11 x 26 Lathe w Gearbox 4 Configure the V belt on the pulleys according to the letter and number combination under the selected spindle speed from the chart in Figure 36 Position the idler pulley on top of the V belt with enough downward pressure to provide tension to the belt then fully secure it in place There is correct tension to the V belt when there is approximately 12 deflection when moderate pressure is applied to the V belt half way between the pulleys Note The pulley slots are numbered 1 3 with number 1 being the outside slot For A C configurations see Figure 37 position the longer V belt 32 in circumfer ence in the correct C pulley slot then roll it onto the A pulley For B C configurations see Figure 38 place the shorter V belt 29 in circumfer ence in the correct C pulley slot then roll it onto the B pulley Power Feed Power Feed on a lathe simply means using the machine driven components to feed the tool into the workpiece rather than feeding it manually with handwheels The speed at which the carriage travels is set with the feed rate dials see Feed Rate on Page 32 for detaile
52. hop News Hand Loader Precision Shooter Woodsmith Handy Projects in Metal Woodwork Home Shop Machinist RC Modeler Woodworker West Journal of Light Cont Rifle Woodworker s Journal Live Steam Shop Notes Other Model Airplane News Shotgun News Old House Journal Today s Homeowner Popular Mechanics Wood 3 What is your annual household income 20 000 29 000 30 000 39 000 40 000 49 000 50 000 59 000 60 000 69 000 70 000 4 What is your age group 20 29 30 39 40 49 50 59 60 69 70 5 How long have you been a woodworker metalworker 0 2 Years 2 8 Years 8 20 Years 20 Years 6 How many of your machines or tools are Grizzly 0 2 3 5 6 9 10 7 Do you think your machine represents a good value Yes No 8 Would you recommend Grizzly Industrial to a friend Yes No 9 Would you allow us to use your name as a reference for Grizzly customers in your area Note We never use names more than 3 times Yes No 10 Comments FOLD ALONG DOTTED LINE Industrial Inc GRIZZLY INDUSTRIAL INC P O BOX 2069 BELLINGHAM WA 98227 2069 FOLD ALONG DOTTED LINE Send a Grizzly Catalog to a friend TAPE ALONG EDGES PLEASE DO NOT STAPLE WARRANTY AND RETURNS Grizzly Industrial Inc warrants every product it sells for a period of 1 year to the original purchaser from the date of purchase This warranty does not apply to defects due directly or indirectly to misuse abuse negligence accidents repairs
53. ht that the half nut will not release and possibly cause dam age to the lathe Tools Needed Qty Wrench OMI EE 1 Hex Wrench 5mm 1 Hex Wrench 2 E 1228 ee 1 To adjust the half nut 1 DISCONNECT LATHE FROM POWER 2 Move the half nut lever up to disengage the half nut from the leadscrew then remove the thread dial from the apron 3 Loosen the two adjustment hex nuts then adjust the set screws in small increments see Figure 76 h e ail gt D I WS i e VE ni i D ell 51e SE d ag OG E F SE RA gy i 1 el KE Za e gt PAAT bo al n Ae 14 LS AA SL B a Kei a lt a gt Adjustment Le Y BAA i d Se St ur lt os T We H S 4 Nk F Mu o E ya D 4 D n S h E dv P gt Hy TER A te ru ty 1 Si e ey gt i Save 8 i Ze D 1 rv ene BL de ET Large j Wy E r d K LZ be ele ug Ui N I SEL Figure 76 Half nut gib adjustment hex nuts and set screws thread dial removed 5 Engage the half nut with the leadscrew then manually rock the carriage back and forth while observing the half nut for looseness 6 When you are satisfied with the adjustment keep the set screws from moving while you re tighten the hex nuts then re install the thread dial 50 Shear Pin Replacement The longitudinal leadscrew is secured to the feed rate gearing in the headstock with the use of a soft metal shear pin see Figure 77 The shear
54. i Change Gear 120 127T gt 4 Change L Gear a i Jed Pivot Arm amp Cap Screw Va y D Jeu LV KR al DA Pach Fo h Us H Le 1 bh o LZ i WK AA di al b lever C A B 24 84 IT 10 002210 004510 0090 28 70 I 10 003010 006010 0120 28 77 TI 10 003310 006710 0135 35 70 I IT 10 003810 007710 0150 Figure 42 Feed rate chart for power feed movement of the carriage 32 G9972Z 11 x 26 Lathe w Gearbox Tools Needed Qty b Remove the E clip that secures change MOVIE RO Eu IN 1 gear a replace the gear with correct Hex Wrench Gmm 1 one then replace the E clip MN 1 Mena 1 c Raise the pivot arm so that the 120 127T Retaining Clip LE ge 1 gear properly meshes with change gear NLGI 2 Grease l a As Needed a then re tighten the cap screw to Configuring Change Gears secure it in place Change Gear b 1 DISCONNECT LATHE FROM POWER a Lower the pivot arm as described above 2 Examine the chart in Figure 42 or Figure 45 b Loosen the square nut on the 120 127T to determine the change gear configuration gear and slide it along the pivot arm and for the selected feed rate away from change gear b Note The feed rates are given in inches of c Loosen and remove the cap screw secur carriage travel per revolution of the spindle ing change gear b then remove the flat IPR washer bushing and the gear 3 Open the change gear co
55. ide and front to back If necessary use shims between the lathe and chip pan Note Re check the bedway after 24 hours after two weeks then annually to make sure it remains level G9972Z 11 x 26 Lathe w Gearbox Mounting The strongest mounting option is a Through Mount where holes are drilled all the way through the workbench and hex bolts washers and hex nuts are used to secure the lathe to the workbench as illustrated in Figure 7 Hex Bolt Flat Washer z Machine Base d s Workbench ET e Flat Washer Lock Washer TTT Hex Nut Figure 7 Example of a through mount setup Another option for mounting is a Direct Mount where the machine is simply secured to the work bench with a lag screw as illustrated in Figure 8 Lag Screw Flat Washer Figure 8 Example of a direct mount setup Note We recommend using a silicon sealant between the flat washers and the chip pan to avoid coolant or other fluids leaking through onto the bench or floor ree Check Gearbox Oil It is critical that you make sure there is oil in the feed rate gearbox before proceeding with the test run Refer to the Lubrication instructions on Page 41 for more details on which type of oil to use how much to use and where to put it GEARBOXES MUST BE FILLED WITH OIL STOP NO OIL SHIPPED WITH MACHINE Refer to the Lubrication Section in this Manual for Recommended Oil Type Te
56. ips with an anti seize grease before and during operation Remove the follow rest from the saddle when not in use After prolonged use the fingers will require milling or filing to clean up the contact surface G9972Z 11 x 26 Lathe w Gearbox Cross Slide Handwheel Dial Increments Resolution Each Mark ee ne eee ee 0 001 One Hevoluton 0 060 The cross slide sits directly on the saddle and moves perpendicular to the workpiece when the handwheel is rotated see Figure 32 TA i CC Cross Slide Le Handwheel S ee Figure 32 Cross slide handhweel and dial Note The cross slide graduated dial is a 2 1 dial The amount removed from the workpiece will be twice the actual distance the cross slide moves For example if you wanted to remove 0 20 from the diameter of a workpiece you would move the cross Slide only 0 10 AWARNING The metal lathe repre sents an entanglement hazard from rotating parts Always tie back long hair ponytails loose clothing and sleeves and remove all jewelry 7 Compound Slide Handwheel Dial Increments Resolution AC MATE 0 001 One Hevoluton 0 040 The compound slide sits on the cross slide and is the base for the tool post An important feature of the compound slide is that it can position the cut ting tool at angles other than 90 to the workpiece which is necessary when matching chamfers or when cutting threads Tools Needed Qty Wrench 14MM EEN 1
57. is or grime before using a clean shop rag to wipe on the oil KKK E 3 d 8 T SON A Figure 69 Longitudinal leadscrew and carriage rack G9972Z 11 x 26 Lathe w Gearbox EN 43 Feed Lever Plunger ISO 68 or Every 8 Hours 1 squirt Equivalent of Operation from Oil Lubricant Can Wipe clean the feed lever plunger shown in Figure 71 then apply the lubricant With the machine OFF move the feed lever up and down to distribute the oil DH D KKK 3 177111121112 A ets A Figure 71 Feed lever plunger Bedways Way Oil Every 8 Hours Thin Coat of Operation To keep the bedways rust free and components sliding smoothly along the surface maintain a thin coat of way oil on the bedway Move the steady rest carriage and tailstock to access the entire length of the bedway We recommend using Model H8257 Primrose Armor Plate with Moly D Machine and Way Oil see ACCESSORIES on Page 37 44 Change Gears NLGI 2 Grease Check Add Thin Coat Every 8 Hours of Operation Maintain a thin coat of grease on the change gear teeth Move the V belt away from the gears then use a stiff brush and a mild solvent to clean debris and grime from the gears Use a clean dry rag to wipe off the solvent Brush on a thin coat of lubri cant to the teeth and rotate the spindle by hand to distribute the grease NOTICE Follow reasonable lubrication practices as outlined in this manual
58. k Correctly set V belt for your operation Page 29 Low power supply Make sure all hot lines and grounds are operational and have correct voltage Run capacitor is at fault Test and replace if necessary V belt is slipping Check V belt and re tension replace if necessary Page 30 Plug or receptacle is at fault Test power plug and receptacle for good contact and correct wiring Motor connection is wired incorrectly Correct motor wiring Page 55 Motor bearings are at fault Rotate motor shaft to check for noisy or burnt bearing repair replace as necessary Machine is undersized for the task Use sharp cutting tools at the correct angle reduce feed rate or depth of cut and use coolant if possible 11 Motor has overheated 11 Clear obstacles away from the motor fan cover let motor cool and reduce workload on machine 12 Spindle switch is at fault 12 Test replace if necessary 13 Motor is at fault 13 Test repair replace 14 Centrifugal switch is at fault 14 Adjust replace 46 EN G9972Z 11 x 26 Lathe w Gearbox Operations Possible Cause Possible Solution Bad surface finish 1 Incorrect spindle speed or feed rate 1 Adjust for proper spindle speed and feed rate Pages 29 32 2 Dull tool or poor tool selection 2 Use sharp tools use correct tool for the operation 3 Too much play in gibs 3 Adjust gibs Page 49 4 Tool too high 4 Lower tool position Cannot remove 1 Quil
59. l Placement rrrnnonnnrnnrnnnnnnnrnnnnnnnrrne 70 WARRANTY AND RETURNS ervnnnrevnnnvevvnnnn 73 INTRODUCTION Foreword We are proud to offer the Model G9972Z 11 x 26 Light Duty Lathe w Gearbox This machine is part of a growing Grizzly family of fine met alworking machinery When used according to the guidelines set forth in this manual you can expect years of trouble free enjoyable operation and proof of Grizzlys commitment to customer satisfaction The specifications drawings and photographs illustrated in this manual represent the Model G9972Z when the manual was prepared However owing to Grizzly s policy of continuous improve ment changes may be made at any time with no obligation on the part of Grizzly For your conve nience we always keep current Grizzly manuals available on our website at www grizzly com Any updates to your machine will be reflected in these manuals as soon as they are complete Visit our site often to check for the latest updates to this manual Contact Info We stand behind our machines If you have any service questions parts requests or general ques tions about the machine please call or write us at the location listed below Grizzly Industrial Inc 1203 Lycoming Mall Circle Muncy PA 17756 Phone 570 546 9663 Fax 800 438 5901 E Mail techsupport grizzly com If you have any comments regarding this manual please write to us at the address below Grizzly Indus
60. l not fit the outlet have the proper outlet installed by a qualified electrician Extension Cords We do not recommend using extension cords but if you find it absolutely necessary e Use at least a 14 gauge cord that does not exceed 50 feet in length e The extension cord must have a ground wire and plug pin e A qualified electrician MUST size cords over 50 feet long to prevent motor damage O SECTION 3 SETUP Setup Safety AWARNING This machine presents serious injury hazards to untrained users Read through this entire manu al to become familiar with the controls and opera tions before starting the machine AWARNING Wear safety glasses dur ing the entire setup pro cess AWARNING The Model G9972Z is a heavy machine Serious personal injury may occur if safe moving methods are not used To be safe get assistance and use power equipment rated for at least 750 Ibs to move the shipping crate and remove the machine from the crate AWARNING SUFFOCATION HAZARD Immediately discard all plas tic bags and packing materi als to eliminate choking suf focation hazards for children and animals 10 Items Needed for Setup The following items are needed to complete the setup process but are not included with your machine Description Qty e E EE 1 e Safety Glasses 1 For Each Person e Machinist s Level 1 e Lifting Straps rated for at least 750 Ibs 2 e
61. l not retracted all the way back into the 1 Rotate the quill handwheel until the tapered tool is tapered tool from tailstock forced out of quill tailstock quill 2 Debris oil not removed from tapered mating 2 Always make sure that tapered mating surfaces are surfaces before inserting into quill clean before inserting Gear s will not line 1 Gear s not aligned in headstock 1 Rotate spindle by hand until gear s falls into place up and mesh Cutting tool 1 Tool holder not tight enough 1 Check for debris clean and re tighten or machine 2 Cutting tool too far out from holder lack of 2 Re install cutting tool with no more than of total components vibrate support length is sticking out of tool holder ane during I 3 Too much play in gibs 3 Adjust gibs Page 49 4 Cutting tool is dull 4 Sharpen replace 5 Incorrect spindle speed or feed rate 5 Adjust for proper spindle speed and feed rate Pages 29 32 Cross compound 1 Too much play in gibs 1 Adjust gibs Page 49 slide or carriage 2 Handwheel s loose 2 Tighten handwheel fasteners feed has sloppy 3 Too much leadscrew backlash cross slide 3 Adjust leadscrew backlash Page 48 operation only 4 Leadscrew mechanism worn or out of 4 Tighten any loose fasteners on leadscrew adjustment mechanisms check for excessive wear replace if necessary Cross compound 1 Gibs are loaded up with chips grime 1 Remove gibs clean ways lubricate an
62. le center line the machined workpiece end will be smaller in diameter at the tailstock end Conversely if the tailstock is positioned away from the operator the taper will be at the spindle end Alternately loosen and tighten the two tailstock adjustment set screws until the desired offset is indicated on the offset scale See Figure 23 To return the tailstock back to the original position repeat the process until the centered position is indicated on the scale then perform the Aligning Tailstock instructions te H mm L Va lt gt FN ven Offset Scale Adjustment Set Screw 1 of 2 SW al KH i We Figure 23 Tailstock offset adjustments Aligning Tailstock The tailstock alignment with the headstock was set at the factory However we recommend that you take the time to ensure that the tailstock is aligned to your own desired tolerances To align the tailstock 1 Use a machinist s precision level on the bedways to ensure the lathe is level side to side and front to back If the lathe is not level correct this condition before proceeding refer to Moving and Placement on Page 12 for detailed instructions D4 2 Center drill a 6 long piece of round bar stock on both ends Set it aside for use in Step 5 Note ff the tailstock is slightly out of align ment by a few thousands of an inch the center drill will find the center point during the drilling process If the tailstock app
63. le or Piece of Plywood 1 Mounting a Chuck or Faceplate 1 DISCONNECT LATHE FROM POWER 2 Lay a chuck cradle see Figure 14 or a piece of plywood over the bedways below the spindle to reduce the risk of injury and to protect the precision ground surfaces of the bedways Figure 14 Simple chuck cradle made from scrap lumber 18 Figure 15 Example of using chuck keys to Clean away any debris and grime from the threads of the spindle and chuck or faceplate then apply a thin coat of light machine oil to the inside threads of the chuck or faceplate Thread chuck or faceplate onto the spindle and fully tighten by hand If necessary insert a chuck key handle into the spindle indent to keep the spindle from rotating Note Overtightening the chuck or faceplate will make removal difficult and could damage the threads Spindle Indent tighten the chuck onto the spindle AWARNING Make sure the chuck or faceplate is firmly secure on the spindle and remove the chuck key Objects thrown from the lathe could cause serious per sonal injury or death to the operator or bystand ers G9972Z 11 x 26 Lathe w Gearbox 5 Position spindle clamps as shown in Figure Removing a Chuck or Faceplate 16 then tighten the cap screws to secure 4 DISCONNECT LATHE FROM POWER chuck or faceplate to spindle 2 Lay a chuck cradle see Figure 14 or a a piece of plywood over the bedways be
64. low Clamp amp Cap the spindle to reduce the risk of injury and to Ny Jo protect the precision ground surfaces of the bedways 3 Remove both spindle clamps from behind the chuck or faceplate see Figure 16 EEN ti 4 Insert the chuck keys into the spindle indent as shown in Figure 15 then unthread the chuck or faceplate from the spindle Figure 16 Spindle clamp and cap screw securing chuck faceplate to spindle 6 Remove the chuck cradle or plywood and any tools used before starting the lathe PINCH HAZARD Protect your hands and the precision ground bedways with plywood or a chuck cradle when removing the lathe chuck The heavy weight of a falling chuck can cause serious injury G9972Z 11 x 26 Lathe w Gearbox EN 19 3 Jaw Chuck The 3 jaw chuck included with this lathe is a scrolling type chuck which means all three jaws move at the same time when the chuck key is turned There is also an external set of jaws included that accommodate additional workpiece configura tions Use the correct jaws to hold your workpiece firmly and securely on the chuck See Figure 17 for examples Clamping on an Outside Diameter 1 2 Figure 17 Examples of using the 3 jaw chuck to 3 hold a workpiece Tools Needed Qty G 3 Jaw Chuck Key rrrrrnrernnrronnnronnnrernnnrnvnnnennnnen
65. lt off the pulleys and replace it with a new one making sure that the belt ribs are seated in the pulley indents 5 Lower the motor to produce reasonable ten sion on the ribbed belt then re tighten the motor mount hex nuts 6 Re install the V belt and close the cover G9972Z 11 x 26 Lathe w Gearbox Bearing Preload This lathe is shipped from the factory with the spindle bearing preload properly adjusted If the spindle ever develops excessive end play and the workpiece finish suffers you can adjust the bear ing preload to remove the unnecessary end play and improve the workpiece finish Tools Needed Qty Spanner Wrench EE 1 Large Phillips Screwdriver 1 Dial Indicator with Magnetic Base 1 Heavy Dead Blow Hammer 1 Wooden Block 1 To adjust the spindle bearing preload 1 Run the lathe for approximately 20 minutes on high speed to bring the lathe to normal operating temperature 2 DISCONNECT LATHE FROM POWER 3 Remove the chuck or faceplate from the spindle then open the change gear cover to expose the outboard end of the spindle see Figure 79 PERA A Spanner Nuts J Spindle Outboard End Le AN F E Figure 79 Outboard end of spindle nuts Ee and spanner 51 Insert the handle of a chuck key or similar tool in a spindle indent to keep the spindle from rotating then remove the outer spanner nut see Figure 79
66. nexpected or unintentional start INTENDED USE Only use the machine for its intended purpose and only use recommended accessories Never stand on machine modify it for an alternative use or outfit it with non approved accessories STABLE MACHINE Unexpected movement during operations greatly increases the risk of injury and loss of control Verify machines are stable secure and mobile bases if used are locked before starting FORCING MACHINERY Do not force machine It will do the job safer and better at the rate for which it was designed GUARDS amp COVERS Guards and covers can protect you from accidental contact with mov ing parts or flying debris Make sure they are properly installed undamaged and working correctly before using machine REMOVING TOOLS Never leave adjustment tools chuck keys wrenches etc in or on machine especially near moving parts Verify removal before starting AWKWARD POSITIONS Keep proper foot ing and balance at all times when operating machine Do not overreach Avoid awkward hand positions that make workpiece control dif ficult or increase the risk of accidental injury DANGEROUS ENVIRONMENTS Do not use machinery in wet locations cluttered areas around flammables or in poorly lit areas Keep work area clean dry and well lighted to mini mize risk of injury G9972Z 11 x 26 Lathe w Gearbox 9 APPROVED OPERATION Untrained operators can be seriously hurt by machinery
67. ng Removal 18 3 Jaw Chuck 20 NAW CNUCKR eeneg EN lee 22 Centers Eeer 23 Offsetting Tailstock 24 aleet TANO sann 24 Drilling with Tailstock 26 Steady Rest EEE 26 Follow Rest 27 GOSS e E 27 Cross e a 28 TAP tot nent e ante mrerereer 28 Spindle SUC E 29 Power Feed 31 FECRIS 32 Threading Controls cccccccccsseeeeeeeeeeeeees 35 SECTION 5 ACCESSORIES 37 SECTION 6 MAINTENANCE 40 CNE AUE SRE ne ee eee ene 40 Cleaning amp Protecting 40 Beidel E 41 SECTION 7 SERVICE ennnennnnnnnnnnennnnonnnnennnn 45 Troubleshooting RE 45 Cross Slide Backlash Adjustment 48 Gib AUILIS MONS de 49 Half Nut Adjustment orrorarernnrrnnrennnnnnnnen 50 Shear Pin Hepnlacement 50 Ribbed Belt Replacement 51 Bearing Preload E 51 SECTION 8 WIRING 54 Electrical Safety Instructions 54 Winng DEN 55 SECTION 9 PARTS nanas 56 Headstock o nnnnnennennnnonnnnnennnnnnnrnnrnnnnrrnnennne 56 Change Gears 58 Feed Rate Gearbox 59 1 010 EE 61 Saddle amp Cross Glde 63 Compound Slide amp Tool Poet 64 TAO eeren eee nseou ace ce N 65 BS es wee A ciara once enemas EEE 66 Steddy RSR E 67 Follow FE 67 Electrical Components 68 ACCessonies sir 69 Labe
68. nut lever down at the same time and NEVER force these levers Always disengage the half nut lever up before moving the power feed lever up Otherwise severe damage to the lathe could occur G9972Z 11 x 26 Lathe w Gearbox EN d es Tr es T De I a ae Figure 13 Tailstock controls and Carriage Handwheel Moves the carriage along the bedway Cross Slide Handwheel Move the cross slide and tooling in a path perpendicular to the workpiece Compound Slide Lock Nuts Secures the rotational position of the compound slide Tailstock components A Quill Holds a tapered center or tool and moves toward or away from the spindle with the use of the handwheel Quill Lock Locks the quill and the installed tool in place Quill Handwheel Moves the quill in and out of the tailstock casting Tailstock Lock Nut Secures the tailstock in place on the bedway 17 Chuck amp Faceplate Mounting Removal The Model G9972Z lathe is shipped with a 5 3 jaw chuck installed on the spindle but also includes a 6 2 4 jaw chuck and a 8 faceplate The chucks and faceplate mount to the threaded spindle in the same manner Before installing or storing the chucks or faceplate clean away debris and grime then apply a protec tive coat of a product like Primrose Armor Plate to avoid rust and corrosion see ACCESSORIES on Page 37 Tools Needed Qty Hex Wrench SE 1 Chuck key As Needed Chuck Crad
69. onnect the lathe to power and turn the lathe spindle ON Let the lathe run for 20 minutes Turn the spindle OFF disconnect the lathe from power remove the chuck then check the temperature of the spindle lf the spindle nose is slightly warm to the touch you have correct bearing preload lf the spindle nose is hotter than you can comfortably keep your hand on the preload is too tight and you must repeat the bearing preload adjustment procedure When repeating the procedure rotate the inner spanner nut a little less during Step 10 in the preceding instructions 3 SECTION 8 WIRING These pages are current at the time of printing However in the spirit of improvement we may make chang es to the electrical systems of future machines Study this section carefully If there are differences between your machine and what is shown in this section call Technical Support at 570 546 9663 for assistance BEFORE making any changes to the wiring on your machine AWARNING Wiring Safety Instructions 54 SHOCK HAZARD Working on wiring that is con nected to a power source is extremely dangerous Touching electrified parts will result in personal injury including but not limited to severe burns electrocution or death Disconnect the power from the machine before servicing electrical com ponents MODIFICATIONS Modifying the wiring beyond what is shown in the diagram may lead to unpre dictable results including serio
70. orrect motor wiring Page 55 Make sure all hot lines and grounds are operational and have correct voltage Replace faulty motor ON OFF button Adjust replace Test replace if necessary Troubleshoot wires for internal external breaks check for disconnected or corroded connections repair or replace faulty wiring or connections Test repair replace Inspect replace stripped or damaged fasteners re tighten with thread locking fluid Replace re tension V belt Page 30 Repair replace dented fan cover or fan Inspect set screws keys replace tighten if necessary Re tighten replace machine mounting hardware as necessary use shims where required Re sharpen replace cutting tool index tool to workpiece use correct feed rate and spindle speed Re center and properly secure workpiece in chuck or faceplate replace defective chuck faceplate Tighten replace spindle bearings Page 51 Rotate motor shaft to check for noisy or burnt bearing repair replace as necessary 10 Gears are at fault 10 Replace bad gears bearings G9972Z 11 x 26 Lathe w Gearbox EN 45 Motor amp Electrical continued Possible Cause Possible Solution Machine stalls or is 1 Wrong workpiece material Only process metal that has the correct properties overloaded for your type of machining Workpiece alignment is at fault Re center and properly secure workpiece in chuck or faceplate Incorrect spindle speed for tas
71. oss slide backlash adjustment set screw compound slide removed lead SS SEN 2 Remove the compound slide and place it in a Tools Needed Qty clean stable location Hex W h Amm ccc eeeceeececeeeteeeeteeeeeeeteneeaneees 1 Ge Wiele Si 1 3 Adjust the backlash adjustment cap screw roere Ne kue fen Note Turn the adjustment screw clockwise to reduce backlash and counterclockwise to increase It To adjust the cross slide backlash 1 Loosen the hex nuts and remove the set screws and flat washers that secure the compound slide to the cross slide see Figures 72 73 4 Test after each adjustment by rotating the handwheel back and forth until the backlash amount is acceptable 5 Re install the compound slide 48 EN G9972Z 11 x 26 Lathe w Gearbox Gib Adjustments The gibs on the Model G9972Z control the accu racy of the cross slide and compound slide move ments These gibs are sliding plates that either increase or decrease pressure on the sliding components around them The goal of gib adjustment is to remove unneces sary sloppiness without causing the ways to bind Tight gibs make the movements more accurate but harder to perform Loose gibs make the move ments sloppy but easier to perform NOTICE Excessively loose gibs may cause poor workpiece finishes and may cause undue wear of the sliding surfaces and ways Over tightening the gibs may cause prema ture wear of these sliding surfaces Tool
72. s Needed Qty Wrench 8MM 5220 ecsnncercdonnecmoneerceseestee 1 Hex Wrench 2 5MmMmJ 1 To adjust the cross slide and compound slide gibs 1 DISCONNECT LATHE FROM POWER 2 Loosen the three hex nuts on the side of the slide see Figures 74 75 Figure 74 Cross slide gib adjustment hex nuts and set screws G9972Z 11 x 26 Lathe w Gearbox PPT 200 al ae Compound Slide VW MS 5i kracht oe or Plane E se A La p A pe TN AE RE Es gh Le SC GE NEE EE Figure 75 Compoun D 5 d EL Adjustment Fasteners ie Fn gt cs S d slide gib adjustment hex nuts and set screws Make adjustments in small and equal incre ments to the three set screws then test the movement of the slide by rotating the handwheel Note Turning the set screws clockwise will tighten the gib and turning them counter clockwise will loosen the gib When you are satisfied with the gib adjust ment keep the set screws from moving and re tighten the hex nuts to secure the set tings Re check the movement of the slide and if necessary repeat Steps 2 4 49 Half Nut Adjustment Over time and with normal wear the half nut may become excessively loose when it engages the leadscrew The half nut gib is a flat bar that exerts pressure against the half nut mechanism The goal of the half nut adjustment is to remove unnecessary looseness as the half nut engages the leadscrew without binding it so tig
73. st Run Once the assembly is complete test run your machine to make sure it runs properly If during the test run you cannot easily locate the source of an unusual noise or vibration stop using the machine immediately then review the Troubleshooting on Page 45 If you still cannot remedy a problem contact our Tech Support at 570 546 9663 for assistance To test run the machine 1 Make sure you have read the safety instruc tions at the beginning of the manual and that the machine is set up properly 2 Read and understand the Basic Controls subsection on Page 16 3 Make sure all tools and objects used during setup are cleared away from the machine 4 Perform all lubrication procedures as instructed in the Lubrication subsection on Page 41 14 9 5 Move the half nut lever up to disengage the half nut and push the power feed lever down to disengage the carriage power feed as shown in Figure 9 Se Half t Nut ET 7 Up Horizontal 00 P Figure 9 Half nut and power feed lever positions for Test Run ALWAYS make sure the power feed lever and the half nut lever are disengaged before starting the lathe to avoid carriage crashes with the headstock or tailstock 6 Connect the machine to the power source 7 Lift the cover of the motor ON OFF switch and turn the motor ON 8 Flip the spindle switch to the right R posi tion the spindle should rotate counterclock wise and the le
74. that TPI 3 THREAD DIAL TP DIAL 9 7 a 26 Figure 49 Thread dial chart 36 For example to cut a TPI of 11 engage the half nut when the thread dial pointer is on the 1 3 5 or 7 To cut a TPI of 24 engage the half nut on any number between 1 and 8 To maintain accuracy and consistency engage the half nut on the same thread dial number on each pass Failure to start on the same number each time may lead to cutting off the thread made in the previous pass Note The thread dial is not used when cutting metric threads Leave the half nut engaged until the threads are complete NOTICE DO NOT engage the half nut when the spin dle speed is over 300 RPM Ignoring this instruction could result in damage to the leadscrew or carriage components G9972Z 11 x 26 Lathe w Gearbox SECTION 5 ACCESSORIES H6879 Lathe Operation amp Maintenance Book This detailed metal lathe book provides extensive coverage of a wide variety of metalworking opera tions Special emphasis is placed on lathe com ponents accessories and operating procedures including basic machine setup and routine main tenance must have reference for all metal lathe owners 260 pages Figure 50 H6879 Lathe Operation amp Maintenance Book H2670 HSS Square Tool Bits Our ground tool bits are M 2 HSS making them some of the most durable tool bits around Make your own specialized cutters in any shape usin
75. ting on Page 45 Factory adjustments that should be verified e Cross slide backlash adjustment Page 48 e Gib adjustments Page 49 45 SECTION 4 OPERATIONS Operation Safety AWARNING To reduce the risk of serious injury when using this machine read and understand this entire manual before beginning any operations AWARNING Damage to your eyes and face could result from using this machine without proper pro tective gear Always wear safety glasses ora face shield when operating this machine AWARNING Loose hair clothing or jewelry could get caught in machinery and cause serious personal injury Keep these items away from moving parts at all times to reduce this risk NOTICE If you have never used this type of machine or equipment before WE STRONGLY REC OMMEND that you read books trade maga zines or get formal training before begin ning any projects Regardless of the con tent in this section Grizzly Industrial will not be held liable for accidents caused by lack of training AG 9 Basic Controls Refer to Figures 11 13 and the descriptions below to become familiar with the basic controls and components of your lathe Headstock Figure 11 Headstock controls and charts A Thread Dial Chart Shows the numbers on the thread dial to engage the half nut for threading operations B Power Switch Allows power to flow to the motor lift the switch for the ON button
76. to fit most 4 way turret tool posts but rugged enough to handle the job this cut off tool holder is a must Comes with a wrench and cut off tool bit Uses s2 x x 5 tool bits Shank measures 2 x 4 x 3 Figure 58 H2972 Cut Off Holder with Blade H2996 Double Ended Boring Bar This is a well made boring bar and holder The boring bar holds the tool bit at 90 at one end and 45 at the other Comes with a wrench and tool bit Bar size is x 4 holder is 24 x 2 uses Ys tool bits Figure 59 H2996 Double Ended Boring Bar G9972Z 11 x 26 Lathe w Gearbox H5936 2 Pc Knurling Tool Set This 2 piece set includes a 2 x 4 Single Knurling Tool Holder and a 12 x 472 Double Knurling Tool Holder with Pivoting Head Both have a black oxide finish Figure 60 H5936 2 Pc Knurling Tool Set H2987 2 Bent Lathe Dog Just the thing for precision machining between centers These bent tail Lathe Dogs are made of durable cast iron and feature square head bolts Figure 61 H2987 91 Lathe Dogs Call 1 200 028 4777 VO 39 SECTION 6 MAINTENANCE Cleaning amp AWARNING Protecting Always disconnect power to the machine before performing maintenance Failure to do this may e Disconnect the lathe from power before result in serious person cleaning al injury e Vacuum excess metal chips as they accumu late and wipe off built up grime 4 CAUTION DO NOT use compressed air
77. trial Inc Co Technical Documentation Manager P O Box 2069 Bellingham WA 98227 2069 Email manuals grizzly com Functional Overview The primary purpose of the metal lathe is to make concentric cuts in metal stock With the lathe round stock can be made perfectly con centric threaded drilled knurled bored tapered etc Square stock can be made into precision round shafts used for axles spindles leadscrews punches etc The maximum size of workpiece a lathe can cut is determined by the swing which is the distance from the center line of the spindle to the bed and the throw which is the maximum distance between the tailstock and the spindle However this lathe features an open spindle that allows lon ger workpieces to extend through the headstock During typical operations the lathe cuts with a fixed cutting tool that is positioned against a rotat ing workpiece To rotate a workpiece the operator centers it on a clamping device called a chuck or faceplate then securely clamps the chuck or faceplate to the spindle so it will not fly loose dur ing operation The spindle connects to the motor through a series of pulleys that control the speed the spindle can rotate which allows the operator different options for cutting based on the type of metal and size of workpiece The cutting tool is mounted on a tool post which is positioned by three different bases that move linearly in their own designated direction T
78. us injury or fire This includes the installation of unapproved after market parts WIRE CONNECTIONS All connections must be tight to prevent wires from loosening during machine operation Double check all wires dis connected or connected during any wiring task to ensure tight connections CIRCUIT REQUIREMENTS You MUST follow the requirements at the beginning of this man ual when connecting your machine to a power source NOTICE The photos and diagrams included in this section are best viewed in color You can view these pages in color at www grizzly com BLUE BROWN GRAY ORANGE 9 WIRE COMPONENT DAMAGE Damaged wires or components increase the risk of serious per sonal injury fire or machine damage If you notice that any wires or components are damaged while performing a wiring task replace those wires or components MOTOR WIRING The motor wiring shown in these diagrams is current at the time of printing but may not match your machine If you find this to be the case use the wiring diagram inside the motor junction box CAPACITORS INVERTERS Some capacitors and power inverters store an electrical charge for up to 10 minutes after being disconnected from the power source To reduce the risk of being shocked wait at least this long before working on Capacitors EXPERIENCING DIFFICULTIES If you are expe riencing difficulties understanding the information included in this section contact our
79. ver then arrange d Install the correct change gear b the the change gears as needed Leave approxi mately 0 002 0 003 0 05 0 08mm back lash between the gears Note Before you install the gears thoroughly clean them with a stiff brush and mild solvent then apply a light coat of NLGI 2 grease to the teeth Change Gear a a Loosen the cap screw securing the pivot arm then lower it to disengage the 120 127T gear from change gear a see Figure 43 bushing flat washer and cap screw Note f change gear b must mesh with the 120T gear when cutting metric threads mount the bushing between the gear and the headstock to properly align the gear e Slide the 120 127T gear over to properly mesh with change gear b then re tight en the square nut f Raise the pivot arm and secure it in place as described above Rotate the spindle by hand and make sure all change gears are properly meshed and rotat ing I f the change gears are not properly meshed or rotating freely repeat this procedure until they are 5 Close and secure the change gear cover Setting the Feed Rate Dials 1 Make sure the spindle motor is OFF and the spindle has come to a complete stop Figure 43 Change gear pivot arm in lowered position 2 Examine the chart in Figure 42 or Figure 45 then correctly set feed rate dials for your selected feed rate G9972Z 11 x 26 Lathe w Gearbox EN 33 Step 3 NOTICE

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