MTX Series Service Manual - Multiquip Service & Support Center
Contents
1. 27 12 7N m 9 4ft lbf 12 7N m 9 4ft lbf No Size Bolt M8X40 28 Nut M8 Tightening torque Remarks 24 5N m 18 1ft lbf 15 68 6N m 50 6ft lbf No Size Socket Head Bolt M10X20 Socket Head Bolt M8X40 16 Tightening torque Remarks Apply Loctite 221 Apply Loctite 221 Nylon nut M12 fig 11 8 2 Disassembly and reassembly the guide cylinder and the spring cylinder fig 9 17 18 8 9 13 11 Only MTX 60 MTX 70 80 90 15 16 14 4 5 10 6 7 9 12 3 1 2 21 32 20 22 23 24 25 25 27 28 29 51 27 28 24 53 52 30 31 26 26 29 35 36 37 39 38 1 Disassembly 10 2 Loosening the center bolt of the spring cyl inder remover slowly will remove the foot plate 13 fig 13 Remove the spring cylinder remover when decreasing pressure of main springs 9 Then remove the lower main springs 9 and lower stopper 8 Load the piston rod holder P N 9839 10030 to the vice and put the spring cylinder as sembly which removed the foot plate upside down to it Then remove the bolt 5 SW and PW which fixing the piston end 4 fig 14 Assemble the piston end remover P N 9839 10010 to the piston end 4 and tightening the center bolt of it fig 15 H I i In case of MTX 70 80 90 1 Unscrew 2 pcs bolts which marked foot plate fig 12 Assemble2. Disassembly work should be conducted working space where it is free from dust Protect the parts or component with sheet to avoid smearing or damaging during service work Use proper tools and genuine parts in proper manner Level check or replacement of oil for main body and engine should be carried out on level ground Replace the disassembled O ring oil seal packing gasket or the like with new one Do not reuse any bolts which it has been heated for disassembly Use the specified standard tightening torque See Table 2 and bonding agent Loctite 221 and 242 or the like when tightening the bolts and nuts And clean the bolts and nuts before tightening them or coating with bonding agent to them 1 2 3 4 5 6 7 8 Screw diameter M6 M8 M10 M12 M14 The caller screws materials Aluminum type SS FCD Aluminum type Helisert N m Kgf cm ft lbf N m Kgf cm ft lbf N m Kgf cm ft lbf N m Kgf cm ft lbf N m Kgf cm ft lbf 11 8 14 7 120 150 8 7 10 8 24 5 29 4 250 300 18 1 21 7 58 8 68 6 600 700 43 4 50 6 98 1 107 9 1000 1100 72 3 79 6 117 7 127 5 1200 1300 86 8 94 4 14 7 17 7 150 180 10 8 13 0 32 4 35 3 330 360 23 9 26 0 73 5 78 5 750 800 54 2 57 9 112 8 122 6 1150 1250 83 2 90 4 166 7 176 5 1700 1800 123 0 130 2 Table 2 S
3. 4 by shocking the top end of center bolt with the plastic hammer fig 16 If it doesn t remove shock it after tightening the center bolt again Remove the protection sleeve 51 from the spring cylinder 12 fig 17 Disassembling the guide cylinder and spring cylinder are completed above Reassemble with the reversed procedure of disassembly with attention to the following terms Replace the disassembled O ring with new one Replace the main spring 9 as a set with upper and lower when replacing it Replace the bellows 23 with new one if it is damaged The bellows 23 is easy to install by applying grease to inner wall of its opening Be careful not to pinch and to twist the O ring when assembling the spring cylinder 12 and guide cylinder 20 Apply molybdenum grease to inner sliding parts of spring cylinder 12 guide cylinder 20 and main spring 9 before assembling them Assemble the foot plate 13 to the spring cyl inder 12 with the spring cylinder remover P N 9830 10040 after fitting position of the oil drain plug 17 of foot plate and the oil fill 39 24 5N m 18 1ft lbf 24 5N m 18 1ft lbf No Size Bolt M8X55 Bolt M8X15 40 Tightening torque Remarks 8 3 Disassembly and reassembly the crankcase 1 Disassembly 1 4 31 33 42 40 39 47 47 2 21 22 3 5 6 7 9 10 11 12 13 14 15 17 16 19 20 2
4. SERVICE M MAANNUUAALL M MTTXX SSEERRIIEESS RRAAM MM MEERRSS TOOLS DISASSEMBLY DIAGRAMS TROUBLESHOOTING Manual No MTX2015SM Multiquip Inc MTX Series Rammers Manual No MTX2015SM CCAALLIIFFO ORRNNIIAA Proposition 65 Warning Engine exhaust and some of its constituents and some dust created by power sanding sawing grinding drilling and other construction activities contains chemicals known to the State of California to cause cancer birth defects and other reproductive harm Some examples of these chemicals are Lead and lead based paint Crystalline silica from bricks Cement and other masonry products 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 ALWAYS work in a well ventilated area and work with approved safety equipment such as dust mask that are specially designed to filter out microscopic particles MTX TAMPING RAMMER SERVICE MANUAL Table of contents Preface Warning labels Precautions for safety Tool Inspection procedure Engine and oil Rules for conduction service work Disassembly and reassembly Periodic checks and adjustments Troubleshooting Work area Clothing and protective gear Cautions during refueling Preventing burns and accidentally being caught in the machine Tools and equipment etc Use of genuine part
5. 19 the groove and the gear of the stop switch In case of the threaded hole was broken by too over screwing the tapping screw M4X12 18 it is available by M4X16 In case of the threaded hole was broken by too over screwing the tapping screw M4X30 19 it is available by M4X34 Remove the lever 2 by unscrewing a bolt 12 after unscrewing a bolt 14 fig 32 Reassemble with the reversed procedure of disassembly with attention to the following terms Be careful the way of dick springs as per fig 33 when assembling the lever A B C D A Remove the fuel cock 3 by unscrewing 2 pcs tapping screw 16 fig 30 Reassemble with the reversed procedure of disassembly with attention to the following terms Assemble the fuel cock after fitting the posi tion of groove between the fuel cock and the stop switch Apply grease for combination lever P N 9800 10420 to the O ring 17 and the groove of the fuel cock In case of the threaded hole was broken by too over screwing the tapping screw M4X12 16 it is available by M14X16 In case of removing the stop switch 4 move to high speed position of the lever 2 ready fig 29 Remove the stop switch 4 by unscrewing 2 pcs tapping screws 19 and a tapping screw 18 fig 31 2 Reassembly 1 Disassembly 1 Reassemble 5 4 Disassembly and reassembly the lever 1 Disassembly 5 3 Disassembly and reassembly the stop switch
6. tank Otherwise engine problems may occur Secondary element fig 37 fig 38 Primary element fig 36 4 A B 5 6 17 10 TROUBLESHOOTING Engine 1 Won t start Fuel is present but the spark plug is not sparking Fuel and spark are both present Fuel is not being supplied to the carburetor Electricity is being supplied to the h i g h v o l t a g e cable Electricity is not being supplied to the high voltage cable Compression is good Compression is low The gap in the spark plug tip is clogged Carbon is stuck on the spark plug The spark plug has a short circuit due to faulty insulation The gap in the spark plug is the wrong size The stop button switch has a short circuit The ignition coil is broken The muffler is clogged with carbon The wrong fuel was used The air cleaner is clogged The fuel is contaminated with water or dirt The cylinder head gasket is blown or the head is not correctly tightened The piston rings don t fit well The cylinder is worn The spark plug is not seated tightly The valve seat is damaged No fuel in the fuel tank Faulty fuel cock operation The fuel filter is clogged The air hole in the cap on the fuel tank is clogged Air is trapped in the fuel line 2 Faulty operation Too little power Engine overheats Smoke comes from the muffler Good compression and no misfiring Good compression but misfires Black smoke Blue smoke White smoke Dirt
7. the engine from the crankcase slowly by having it firmly with both of hands 2 Remove the engine flange 26 by un screwing 4 pcs flange bolts 28 1 Unscrew 2 pcs flange nuts 27 and 2 pcs bolts 28 and remove the engine from the crankcase slowly by having it firmly with both of hands 2 Remove the engine flange 26 from the crank case by unscrewing 4 pcs flange bolts 29 F G fig 2 Ground terminal wire harness connector Curl cord Clamp Nut M6 fig 3 Pan head screw Speed control wire 61 17 6N m 13 0ft lbf No Size Socket Head Bolt M8X30 Apply Loctite 221 Tightening torque Remarks 29 53 9N m 39 8ft lbf No Size Flange Nut M10 Tightening torque Remarks 28 22 5N m 16 6ft lbf No Size Flange Bolt M10X40 Flange Bolt M10X30 MTX 60 MTX 70 Tightening torque Remarks 29 19 6N m 14 5ft lbf No Size Flange Bolt M8X30 Tightening torque Remarks 65 19 6N m 14 5ft lbf 19 6N m 14 5ft lbf No Size Nut M8 Apply Loctite 221 72 Socket Head Bolt M8X20 Tightening torque Remarks 27 53 9N m 39 8ft lbf 53 9N m 39 8ft lbf No Size Flange Nut M10 28 Bolt M10X70 Tightening torque Remarks Socket Head Bolt M8X20 PW 63 19 6N m 14 5ft lbf No Size Apply Loctite 221 Tightening torque Remarks 8 Unscrew a bolt 25 which is fixing the clu
8. the spring cylinder remover P N 9830 10040 there Then unscrew 6 pcs remaining bolts after tightening the center bolt of the spring cylinder remover fig 15 Piston end remover Special tool Center bolt 5 117 6N m 83 7ft lbf No Size Bolt M12X30 Fine Pitch Thread Tightening torque Remarks Apply Loctite 221 fig 13 Spring cylinder remover Special tool Center bolt fig 14 Piston rod holder Special tool 11 Rear Engine side Front Front cover side Mark Backside of Foot plate MTX 60 Socket head bolt M10 x 20 15 Socket head bolt M 8 x 40 16 Special tool wearing point Rear Engine side Front Front cover side Mark Backside of Foot plate MTX 70 80 90 Socket head bolt M10 x 20 15 Socket head bolt M10 x 40 16 Special tool wearing point fig 12 15 68 6N m 50 6ft lbf 53 9N m 39 8ft lbf No Size Socket Head Bolt M10X20 Socket Head Bolt M10X40 16 Tightening torque Remarks Apply Loctite 221 Apply Loctite 221 J K A B C D E F G Remove the engine assembly as per 8 1 Separate the crankcase and the guide cylin der as per 8 2 Remove the handle assembly by unscrewing 4 pcs bolts 4 which fixing it Remove the air cleaner assembly 33 by un screwing 2 pcs bolts 40 and 2 pcs bolts 39 which is fixing it fig 19 A B C D Remove the piston end
9. 1 106 101 44 32 23 fig 18 fig 19 12 Protection sleeve Spring cylinder fig 17 fig 16 Center bolt 2 Reassembly E F G H Remove the connecting rod 14 from crank gear 101 with the pulley puller after remov ing the stop ring 17 Remove the bearing 9 from the connecting rod with the press after removing the stop ring 16 fig 24 Remove the pinion drum 4 from the crank case 1 with the press after removing the stop ring 7 fig 25 Disassembling the crank case is com pleted above Reassemble with the reversed procedure of disassembly with attention to the following terms Be careful not to pinch fingers between the crank case and the front cover Apply molybdenum grease to contact surface of oil seal O ring tooth face of pinion gear and crank gear I J K A B Remove the shock absorber bracket 31 by unscrewing 4 pcs bolts 32 which fixing it fig 20 Remove the front cover 106 by shocking it with the plastic hammer after unscrewing 8 pcs bolts 21 which fixing it fig 21 Remove the stop ring 11 which fixing bear ing 10 through the hole of crank gear 101 with the snap ring plier fig 22 Remove the crank gear by tightening 2 pcs M8x50 full threaded bolts P N 0091 10044 to threaded holes which installed in the crank gear evenly after fitting position of the top end of bolts and the ribs of front cover which had thr
10. 2 Reassembly fig 32 2 12 13 14 15 fig 33 Lever Dick springs Socket head bolt M8 35 fig 31 19 18 4 18 0 78N m 0 58ft lbf 0 78N m 0 58ft lbf No Size Tapping Screw M4X30 Tapping Screw M4X12 19 Tightening torque Remarks 15 16 0 78N m 0 58ft lbf No Size Tapping Screw M4X12 Tightening torque Remarks 16 17 3 fig 30 fig 29 9 PERIODIC CHECKS AND ADJUSTMENTS Table 3 9 1 Table of scheduled checks 9 2 Periodic checks and adjustments How often Daily before starting operation After first 20 hours Every 50 hours Every 200 hours Every 200 to 300 hours Every 2 years Place to check Appearance Air cleaner Bolts nuts Handle Rubber damper Engine oil Lubrication oil in the main body Fuel tank Fuel system Engine oil Spark plug Engine oil Lubrication oil in the main body Pre air cleaner primary element Fuel hose Item to check Flaws deformity dirt Dirt flaws deformation Loose or missing parts Flaws deformity cracks damage Wear deformity cracks damage Dirt oil level Dirt oil level Leaks fuel level dirt Leaks wear looseness Replace once after the first 20 hours Clean adjust gap Replace Replace Cleaning Replace Oil etc Engine oil Engine oil Gasoline Engine oil Engine oil Engine oil Lamp kerosene Daily maintenance Carefully wipe off any mud dirt or oil from each compo
11. ad an instruction manual of a separate volume before work by all means in order to get security of work when I do right driving maintenance of TAMPING RAMMER and prepa ration On the handling of an engine please read an engine instruction manual and a preparation manual of a separate volume This preparation commentary handwriting mentions the point of the resolution assembling in preparation of TAMPING RAMMER and a preparation standard You read this preparation commentary handwriting carefully before getting it ready and please understand enough structure a function of each part For inquiries about repair parts parts lists service manuals and repair of the machine please contact Multiquip dealer in your area In addition parts lists are available on the MQ Service amp Support Center website at http service multiquip com The triangle shaped marks used in this manual and on the decals stuck on the main body indicate common hazards Be sure to read and observe the cautions described Warning labels indicating hazards to humans and to equipment Denotes an extreme hazard It calls attention to a procedure practice condition or the like which if not correctly performedor adhered to is likely to result in serious injury or death Denotes a hazard It calls attention to a procedure practice condition or the like which if not correctly performed or adhered to could result in serious injury or de
12. andle When using a hydraulic shovel as a crane never hoist up and down suddenly When the machine is hoisted never allow people or animals underneath the crane For safety reasons do not hoist to a height that is higher than necessary Be careful not to cause accidents while operating the hoisting equipment Also make sure the hoisting equipment is not malfunctioning Use appropriate tools Using tools that do not fit the parts will not only damage the parts but also cause unexpected injury Always refuel in a well ventilated area Make sure that the engine is stopped Refuel after the engine cools down Refuel on a flat surface area with no flammable objects around Be careful not to spill the fuel If a spill occurs wipe it well Keep away from open fires while refueling Smoking is strictly prohibited while refueling CAUTION 3 4 Preventing burns and accidentally being caught in the machine WARNING 3 5 Tools and equipment etc WARNING 3 3 6 Use of genuine parts and genuine oils 3 7 Tightening torque of bolts and nuts Always use genuine parts and oils The use of inappropriate parts will greatly shorten the life of the machine also resulting in unexpected accidents For tightening of bolts and nuts use the tightening torque specified in this maintenance manual Over tightening an
13. ath Denotes a hazard It calls attention to a procedure practice condition or the like which if not correctly performed or adhered to could result in injury to people and may damage or destroy the product Precautions without a triangular mark Failure to follow the instructions may result in damage to property WARNING CAUTION DANGER 3 1 Work area 3 PRECAUTIONS FOR SAFETY DANGER Do not work in a poorly ventilated area such as indoors or inside a tunnel Exhaust from engines contains toxic substances such as carbon monoxide and it is very dangerous if those oisonous gases and dust are inhaled Also to maintain better ventilation keep an appropriate distance from buildings when operating this machine Do maintenance work in a place with a flat robust surface to keep the machine stable while being maintained Also select an area with sufficient space for maintenance work Before maintenance work clean the floor thoroughly Oil and other soiling left on the floor may cause accidental fall For maintenance work make sure the work area is well lighted A portable lamp to illuminate the work site has to be protected by wire If the lamp breaks fuel and oil might ignite To prepare for emergency the work area should be equipped with emergency medical devices and fire extinguishers CAUTION 2 3 2 Clothing and protective gear 3 3 Cautions du
14. d the lack of torque will not only shorten the life of the machine but also result in unexpected accidents such as breakage and break down of the machine while in use Store waste engine oil lubrication oil and fuel in a container Never release such wastes on the ground or discharge them in side ditches Handle them in compliance with the applicable laws and other regulations her than necessary Be careful not to cause accidents while operating the hoisting equipment Also make sure the hoisting equipment is not malfunctioning Use appropriate tools Using tools that do not fit the parts will not only damage the parts but also cause unexpected injury CAUTION WARNING 3 8 Handling of wastes CAUTION 4 1 Wrench 6mm 8mm 10mm 12mm 13mm 14mm 17mm 19mm Offset wrench Socket wrench Adjustable wrench 2 Hexagonal wrench Hexagonal socket 5mm 6mm 3 External snap ring plier Internal snap ring plier bent type can be also used 4 Screwdriver flat and cross 5 Metal and plastic hammers 6 Sealing compound Locktite 221 and 242 7 Molybdenum grease 8 Grease for combination lever C1 Z P N 9800 10420 10 Pressing machine 11 Special tool Clutch puller A P N 9810 10400 Clutch puller B P N 9839 10020 Spring cylinder remover P N 9830 10040 Piston end remover P N 9839 10010 Clutch mounter P N 9830 10060 Piston rod holder P N 9839 10090 Socket h
15. ead bolt 8X50 Crank gear remover P N 0091 10044 4 TOOL 5 2 Operating test 5 1 External appearance check 5 INSPECTION PROCEDURE 5 Installation of parts loosened screw defective parts etc Damage on machine Oil check level and contamination A Engine oil SAE10W 30 when shipped See operation manual for the engine B Main body oil SAE10W 30 when shipped See table 1 Shock rubber for damage crack fatigue hardening etc Check for engine speed Idling and Operating speed Check for abnormal noise and jump during operation 1 2 3 4 1 2 6 ENGINE AND OIL Model Engine type Idling engine speed Setting speed Fuel tank capaity Lubricant for Body Capacity of Lubricant for Body Lubricant for Engine Capacity of Lubricant for Engine Fuel MTX 70 1900 2000 3800 4100 MTX 60 1900 2000 3800 4100 2 2 1 Honda GX100U KRBF 0 65 0 69 0 28 0 30 rpm rpm liters quart liters quart liters quart MTX 80 1900 2000 3400 3600 3 3 2 Automobile Oil SAE 10W 30 Class SE or higher Automobile Oil SAE 10W 30 Class SE or higher Unleaded Gasoline MTX 90 1900 2000 3500 3700 Robin EH12 2D46530 0 82 0 87 0 4 0 42 Table 1 7 RULES FOR CONDUCTING SERVICE WORK 6 Before removing or disassembly any parts or component be sure to know exactly how it was installed or assembled
16. ee o clock and nine o clock positions fig 23 2 Reassembly 1 4 3 6 7 5 fig 25 fig 22 Please match a position of this lib with a head of a bolt fig 23 9 14 17 16 101 fig 24 13 32 53 9N m 39 8ft lbf No Size Bolt M10X30 SW Tightening torque Remarks Apply Loctite 221 21 No Size Socket Head Bolt M8X25 Tightening torque Remarks Apply Loctite 242 24 5N m 18 1ft lbf fig 21 fig 20 A B C A B Remove the slider 9 and the inner wire from there Remove the outer wire by unscrewing 2 pcs nuts 7 after removing the wire cap 6 Reassemble with the reversed procedure of disassembly In case of removing the fuel cock 3 move to high speed position of the lever 2 ready fig 29 C D A Remove the fuel tank 10 from the handle by unscrewing 3 pcs bolts 11 after disconnect ing the fuel hose 19 Unscrew 2 pcs tapping screws 22 which fixing the meter finisher from the underside of the fuel tank and remove the hour amp tachom eter and the meter finisher at the same time because they are tightening at the same time In case of replacing the fuel filter 14 which installed in the fuel tank remove the fuel filter holder 16 by unscrewing 3 pcs nuts 17 which is fixing it Reassemble with the reversed procedure of disassembly with attention to the following terms Replace the damaged fue
17. in the air cleaner Air trapped in the fuel line Carbon has accumulated in the cylinder Faulty ignition coil Dirt on the spark plug Ignition coil shorts sometimes Choke lever wasn t returned to the open position Blended fuel for 2 cycle engines was used Too much oil Engine oil leaked into the air cleaner when the machine was laid down on the wrong side Worn piston rings The piston rings don t fit well Moisture in the gasoline The air cleaner is wet Low compression See Compression in low above Excessive accumulation of carbon in the combustion chamber Clog exhaust port or muffler Faulty spark plug Good compression Compression is low In the winter the machine may emit white smoke for a while when first started in the morning This is not abnormal Faulty governor adjustment Faulty governor spring Faulty fuel flow Air being sucked into the fuel line Engine speed fluctuates 18 Multiquip Inc MTX Series Rammers Manual No MTX2015SM Corporate Headquarters Multiquip Inc 18910 Wilmington Ave Carson Ca 90746
18. l hoses 19 103 104 with new one Be careful not too tightening the tapping screws 22 which is fixing the hour amp tachometer and the meter finisher because the threaded holes of the meter finisher made by plastic is broken by over tightening torque 1 Disassembly 5 2 Disassembly and reassembly the fuel cock 1 Disassembly 2 Reassembly 2 Reassembly fig 28 In case of removing the throttle wire 5 move to idling position of the lever 2 ready fig 28 Remove the end cap 11 and unscrew a bolt 10 and 2 pcs nuts 8 A B 8 5 Disassembly and reassembly the combination lever 1 Disassembly 5 1 Disassembly and reassembly the throttle wire fig 27 1 2 3 4 5 6 7 8 8 9 10 11 12 13 14 15 16 17 18 19 20 14 8 4 Disassembly and reassembly the handle 3 41 41 101 101 101 101 7 6 5 43 43 42 42 A 9 54 51 10 22 56 14 15 18 16 17 53 A 11 55 4 52 102 103 57 104 fig 26 20 19 20 Never disassemble the stop switch 4 CAUTION B A B C A B Reassemble with the reversed procedure of disassembly with attention to the following terms Assemble the stop switch after fitting the po sition of groove between the fuel cock and the stop switch Apply grease for combination lever P N 9800 10420 to the O ring
19. nent If oil leaks retighten the joints and check again Maintenance after every 50 hours of operation Remove the fuel filter cup and clean the inside thoroughly fig 34 Remove the spark plug and clean it Then adjust the gap to 0 6 to 0 7 mm Replacing the lubrication oil Remove the drain plug on the lower part of the machine body and drain the oil inside Then add the specified amount of new oil fig 35 1 2 3 Oil gauge Drain plug fig 35 Fuel filter fig 34 16 Cleaning the air cleaner Remove the upper air cleaner cover on the main body Loosen and remove the 2 Phillips screws that hold the cover on the air cleaner assembly Primary element clean every 80 to 100 hours If the primary element is dirty wash it with gasoline or lamp kerosene Then dip it in engine oil SAE10W 30 and wring it out Wring the element so that 25 to 30 cc of engine oil remains in the element fig 36 Secondary element clean every 100 to 150 hours When the secondary element under the primary element becomes dirty wash it with neutral detergent solution and dry it well Then reuse it fig 37 38 Be sure to check the fuel line for damaged or looseness Replace the fuel line every 2 years even if it does not show any abnormality Cleaning the machine body If you want to clean the machine body using high pressure steam do not spray water directly into the air cleaner carburetor muffler or top of the fuel
20. ring refueling DANGER To make the work safe wear work clothes that fit properly and use protective gear such as a helmet and safety boots appropriate for the work Work clothes that do not fit might be caught in the rotating parts leading to an unexpected injury When refueling pay attention to the following points Spills might occur if the fuel is filled to the top After refueling tightly close the tank cap by twisting it to the end Start your work only after the machine cools down completely The muffler in particular gets very hot and an accidental burn might occur The engine and engine oil also get very hot so be careful not to get a burn If you perform maintenance work with the engine running you might be accidentally caught in the rotating parts such as the clutch and gear Perform maintenance work after the engine is stopped Qualification is required for handling the crane Only someone qualified to operate a crane and do hooking work can handle the crane Before operating the crane for safety reasons check the machine parts especially the hook and anti vibration rubber for any damage and loosened or missing bolts Stop the engine while hoisting Use a sufficiently strong wire rope For safety reasons do not hoist to a height that is highter than necessary Do not use a wire rope if it is damaged For hoisting use only the one point hoisting hook and do not hoist at other parts such as the h
21. s and genuine oils Tightening torque of bolts and nuts Handling of wastes Engine Guide cylinder and Spring cylinder Crankcase Handle Combination lever 1 1 1 1 2 2 2 2 3 3 3 4 5 5 6 7 7 10 12 13 14 16 18 1 2 WARNING LABELS 1 PREFACE Please re
22. tandard torque table MTX 60 MTX 70 Figure is MTX 70 MTX 80 MTX 90 23 24 25 1 25 2 26 28 29 34 51 63 52 57 111 61 59 59 58 53 36 35 60 56 75 53 63 63 51 60 56 57 58 56 52 59 63 63 53 63 59 53 66 62 34 36 35 25 1 111 23 24 25 2 82 79 28 29 27 26 71 73 72 65 fig 1 8 DISASSEMBLY AND REASSEMBLY 8 1 Disassembly and reassembly the Engine 7 Remove the EX bar 57 by unscrewing 4 pcs bolts 58 Remove the muffler guard 52 and the link guard 51 by unscrewing 4 pcs bolts 63 and 2 pcs bolts 56 Remove the engine guard 60 as per follow ing terms i In case of MTX 60 70 Remove the engine guard 60 by unscrew ing 4 pcs bolts 61 ii In case of MTX 80 90 Remove the engine guard 60 by unscrew ing 4 pcs nuts 65 and 2 pcs bolts 72 Disconnect the fuel hose from the carburetor side Disconnect the wire harness of combination lever and the curl cord of hour amp tachometer from the engine fig 2 Remove the speed control wire by loosening a pan head screw and 2 pcs M6 nuts fig 3 A B C D E 1 Disassembly Remove the intake pipe 34 by loosening a flat screw of cyclone clamp 35 Remove the engine as per following terms i In case of MTX 60 70 ii In case of MTX 80 90 1 Unscrew 4 pce nuts 29 and remove
23. tch Then assemble the clutch puller B P N 9839 10020 to the clutch by tightening 4 pcs pan head screws and tighten the center bolt B to the crank shaft of engine fig 4 In addition assemble the clutch puller A P N 9810 10400 to the clutch puller B by tightening 2 pcs bolts A and tighten the center bolt A fig 5 Remove the clutch by shocking the top end of center bolt A with plastic hammer fig 6 If it doesn t remove shock it after tightening the center bolt A again Disassembling the engine is completed above H I J Reassemble with the reversed procedure of disassembly with attention to the following terms Replace the clutch with new one if it is dam aged Degrease the engine shaft when assembling the clutch Tighten a bolt which is fixing the clutch by fixing the clutch with the clutch mounter P N 9830 10060 fig 7 Adjust the operating speed of engine as table 1 The well nut 53 59 is tightened by com pressing the rubber of it when is tightening the bolt fig 8 A B C D E 2 Reassembly Bolt M8X25 25 32 4N m 23 9ft lbf No Size Apply Loctite 221 Tightening torque Remarks fig 6 fig 8 Bolt A fig 5 Clutch puller A Special tool Center bolt A fig 7 fig 4 Center bolt B Clutch puller B Special tool 9 Piston pin fig 10 A B Drain oil from drain plug 17 Remove
24. the guide cylinder 20 by removing a clamp 25 for the upper bellows 25 after removing the nut 28 bolt 27 and pin 29 which fixing it There is no pin 29 on the MTX 60 Remove the bellows 23 by removing a clamp 25 for the lower bellows after removing the nut 28 bolt 27 and pin 29 which fixing it There is no pin 29 on the MTX 60 Remove the foot assembly by unscrewing 4 pcs M12 nylon nuts fig 11 Remove the foot plate from the protection sleeve 51 as per following procedure i In case of MTX 60 1 Unscrew 2 pcs bolts which marked foot plate fig 12 Assemble the spring cylinder remover P N 9830 10040 there Then unscrew 6 pcs remaining bolts after tightening the center bolt of the spring cylinder remover C D E F G Unscrew 4 pcs bolts 22 which is fixing the crankcase and the guide cylinder Lift the crankcase and separate the connect ing rod and the piston rod by removing the piston pin 1 fig 10 38 78 4N m 57 8ft lbf No Size Nylon Nut M12 Tightening torque Remarks 22 53 9N m 39 8ft lbf No Size Bolt M10X35 SW Tightening torque Remarks Apply Loctite 221 17 39 2N m 28 9ft lbf 39 2N m 28 9ft lbf No Size Oil Drain Plug 30 Oil Fill Plug Tightening torque Remarks 27 12 7N m 9 4ft lbf 12 7N m 9 4ft lbf No Size Bolt M8X40 28 Nut M8 Tightening torque Remarks
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