FENDT 938 Vario MT, Workshop Service Manual

Page 1: ...ual Rubber Track Tractor 938 Vario MT AGCF09xxxLxxx1001 940 Vario MT 943 Vario MT North America 4205 River Green Parkway Duluth GA 30096 USA FENDT is a worldwide brand of AGCO AGCO 2020 March 2020 790...

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Page 3: ...in system 5 Brake system 6 Compressed air system 7 Hydraulic system 8 Electrical system 9 Cab 10 Air conditioning and heating system 11 Chassis 12 Track belt system 13 Implement drive system 14 Implem...

Page 4: ...1 1 27 Exhaust fumes 1 13 1 1 28 Noise prevention 1 14 1 1 29 Fire and explosion prevention 1 14 1 1 30 Fire extinguisher 1 15 1 1 31 Public road transportation 1 15 1 2 Machine identification informa...

Page 5: ...6 9 Maintenance to be made every two years 1 35 1 6 9 1 Change coolant 1 35 1 6 10 Additional maintenance instructions 1 36 1 6 10 1 Before the cold season 1 36 1 6 10 2 Tightening torques 1 36 1 6 10...

Page 6: ...al with these situations The safety section does not replace safety practices in other parts of this service manual Practice good safety to help prevent injury or death Learn how to operate the machin...

Page 7: ...are important safety instructions in the manual GUID 087C8B07 BA1A 4AC8 93FF E28F097F1E16 high jpg High Fig 2 1 1 4 Safety messages The words DANGER WARNING or CAUTION are used with the safety symbol...

Page 8: ...Know dangerous situations before an injury occurs A person must be alert to possible dangers This person must also have the necessary training skills and tools to do these operations correctly Incorr...

Page 9: ...steps Make sure lunch boxes tools and other loose items that are not a part of the machine are attached Know the applicable work location hand signals and the personnel that are approved to give the...

Page 10: ...u are on the ground during an electrical storm stay away from the machine 1 1 12 Mount and dismount the machine Mount the machine and dismount the machine only at locations that have steps and or hand...

Page 11: ...Always operate the engine in an open area If in a closed in area send the exhaust out WARNING If you turn the steering wheel with the transmission in the neutral position and the engine at idle speed...

Page 12: ...e When maneuvering to connect equipment make sure no personnel are between machine and trailing equipment Hold up the hitch of trailing equipment to align equipment with drawbar Know the maximum dimen...

Page 13: ...gloves when touching wire cable When hitting a retainer pin the retainer pin can fly out causing personal injury Make sure that there are no people in the area when hitting a retainer pin To prevent e...

Page 14: ...h a bare hand Remove the filler cap slowly to relieve the pressure The cooling system conditioner contains alkali Alkali can cause personal injury Do not allow alkali to contact skin eyes or mouth GUI...

Page 15: ...ose has a kink Outer coverings have embedded armoring The end fittings are displaced IMPORTANT Take care to contain fluids during the performance of the inspection the maintenance the testing the adju...

Page 16: ...ions can cause an explosion causing an injury Keep open flames or sparks away from the top of the battery Do not smoke in the battery charging areas To prevent an explosion never charge a frozen batte...

Page 17: ...to accumulate on machine Store fuels and lubricants in correctly identified containers away from not approved persons Store rags with oil and any flammable materials in protective containers Do not s...

Page 18: ...099107 high jpg High Fig 17 Make sure that a fire extinguisher 1 is available and know the operation Examine and service the fire extinguisher regularly Obey the recommendations on the instruction pla...

Page 19: ...ol SIS is installed in the rear window be sure to close the rear window when transporting the machine on the road CAUTION The operator must always use caution when driving on public roads In addition...

Page 20: ...1 2 Machine identification information GUID B4C4B3E4 103B 4436 AA92 69EC893E09B9 high jpg High Fig 19 GUID 50F4664B 3C1F 4977 8F2C B14B939DD001 V2 1 General Rubber Track Tractor 1 17 79037495A...

Page 21: ...Definition of the serial number 1 Beginning Symbol 2 World Manufacturer Code 3 Brand Code 4 Model 5 Check Letter 6 Model Year Code 7 Location Built Code 8 Compliance Region 9 Option Code 10 Machine S...

Page 22: ...collect waste fluids it can cause a person to drink from them Do not put or spill waste on the ground down a drain or into a water source Refrigerants for air conditioner released into the air can da...

Page 23: ...t a dealer if additional information is needed 1 4 2 Lubricant viscosities AGCO Genuine lubricants are the recommended products for this machine The use of other lubricants may not provide the same le...

Page 24: ...y 290 2 L Engine crankcase and filter AGCO Multiguard SAE 10W 40 34 8 L DEF Diesel exhaust fluid tank 71 0 L Windscreen washer reservoir 4 0 L Refrigerant R134A 1 3 kg Final drives hydraulic system st...

Page 25: ...eparator drain Window washer reservoir fill Window wipers inspect replace Windows clean 1 5 1 Maintenance schedule Initial checks Make sure that all hose clamps on the engine are tight at 10 hours and...

Page 26: ...7 Replace the idler and midwheel hub oil x Examine the ROPS x Examine the seat belt 1200 hours or annually that which occurs first Replace the DEF pump main filter 1200 hours or annually that which o...

Page 27: ...rval 4 Every 50 hours when in use otherwise every 250 hours 5 Initial occurrence then at given intervals 6 Earlier in dusty conditions 7 If operated in wet muddy or extremely dusty conditions replace...

Page 28: ...by specific service code 4 Always do an engine software update if there is an update available 5 The 98 engines have hydraulic lash adjusters from the engine serial number B52904 Do not adjust the val...

Page 29: ...evel The coolant level should be slightly above the radiator core The coolant level should be between the MAX and MIN lines if the system is provided with an expansion tank Check the freezing point of...

Page 30: ...n the outside of the radiator from time to time 2 Use compressed air or water spray to remove dirt and impurities Avoid too high a pressure The direction of the air or water spray must be against norm...

Page 31: ...the oil into a suitable container The engine may be equipped with an oil draining pump e g marine engines in that case use the pump to drain the oil 4 When the oil sump is empty refit the plug with a...

Page 32: ...adjusters IMPORTANT Do not adjust the valves of an engine which has hydraulic lash adjusters An engine with hydraulic lash adjusters has a cylinder block which has drillings for oil ways for each hydr...

Page 33: ...must obey the maintenance schedule recommended by the manufacturer Use only the filters that have approval by the manufacturer or those of equivalent quality CAUTION Diesel fuel Diesel fuel can cause...

Page 34: ...seconds after you stop the engine Loosen the high pressure components slowly this decreases the pressure in the high pressure side of the fuel system CAUTION Diesel fuel Diesel fuel can cause irritati...

Page 35: ...inlet and exhaust manifold joints Correct adjustment of the injection equipment is essential for the operation of the turbocharger When a new turbocharger is installed pour about 0 1 ltr of pure engi...

Page 36: ...sel fuel in Diesel Exhaust Fluid DEF tank CAUTION Decreased performance Engine is not in compliance with emission regulations Make sure that the Diesel Exhaust Fluid DEF in storage is at a temperature...

Page 37: ...the supply module is fully clean 2 Make sure that there are no cracks in the supply module a If there are cracks in the supply module replace it 3 Make sure that there are no cracks in the filter cov...

Page 38: ...n radiator 2 Drain plug on cylinder block 3 Drain plug on oil cooler 4 Bleed plug Change the coolant every two years This ensures that the anti corrosive is always active See information for coolant q...

Page 39: ...e the cold season Procedure 1 Drain the fuel tank of water 2 Replace the fuel filter and pre filter 3 Ensure that the fuel in the tank is of winter quality 4 Change the engine oil winter quality 5 Che...

Page 40: ...pump pulley nut M16 120 Belt tightener screw 48 Exhaust manifold screws 50 Injector retaining screw See the correct tightening procedure from the work instructions Injector wire nuts M4 1 5 High pres...

Page 41: ...0 60 of ethylene propylene glycol based antifreeze and water The best proportion is 50 of antifreeze liquid and 50 of water The water used must be mechanically clean and not too acid e g swamp water o...

Page 42: ...ments and the standards that follow Fuel standards European standard EN 590 2009 or newer North American standard ASTM D 975 10b or newer Japanese standard JIS K2204 2007 or newer Chinese standard GB...

Page 43: ...2 Common rail No No 2000 mg kg Mechanical No No 2000 mg kg Tier 0 Stage 0 Common rail No No 2000 mg kg Mechanical 1 Within the European Union fuel with sulphur content not greater than 10 mg kg 20 mg...

Page 44: ...Esters FAAE EN 14214 EN 15940 EU BTL HVO EN 15940 EU BTL HVO EN 14214 ASTM D 975 North America ASTM D 6751 JIS K2204 Japan JIS K2390 GB 19147 St5 China NOTE Do not use diesel fuel with higher proporti...

Page 45: ...plication tank size and location return flow etc FIG B Engine output dependence on fuel density Normal value is 0 84 kg dm3 at 15 C FIG C Engine output dependence on fuel viscosity Normal value is 3 c...

Page 46: ...Good for summer use NOTE Do not use E6 engine oil in AGCO POWER engines Use of E6 engine oil can increase engine wear DANGER Lubricating oil is dangerous to health Injury to persons Do not let the eng...

Page 47: ...s Constant torque hose clamp will help prevent these failures Constant torque hose clamp is installed correctly under the following conditions Screw tip 1 extends 6 35 mm 25 in A beyond housing Bellev...

Page 48: ...16 80 110 M20 125 170 M24 300 400 M30 550 750 M36 880 1200 Metric bolt and cap screws CMKJA0110056501 GUID 89879BEA 7825 4EB4 8E44 9DD123CA4470 low svg Low Fig 38 Size Class 4 8 Class 8 8 or 9 8 Class...

Page 49: ...ound Feet lbf ft Newton Meters Nm Pound Feet lbf ft Newton Meters Nm Pound Feet lbf ft Newton Meters Nm 1 4 20 8 to 10 9 to 15 9 to 11 10 to 16 3 5 to 4 5 5 to 7 5 16 18 16 to 20 21 to 31 18 to 22 21...

Page 50: ...re the sealing surfaces are free of burrs damage and scratches or any unwanted particles Lubricate the O ring Set the flanges and the half clamps Put the lock washers on the bolts and put the bolts th...

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