FENDT 940 Vario MT Workshop Service Manual
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FENDT 940 Vario MT Workshop Service Manual

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Workshop Service Manual
Rubber Track Tractor
938 Vario MT
AGCF09xxxLxxx1001-
940 Vario MT
943 Vario MT
North America
March 2020
4205 River Green Parkway, Duluth GA 30096 USA
79037495A
FENDT is a worldwide brand of AGCO
EAME
© AGCO 2020
English

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  • Page 1 Workshop Service Manual Rubber Track Tractor 938 Vario MT AGCF09xxxLxxx1001- 940 Vario MT 943 Vario MT North America March 2020 4205 River Green Parkway, Duluth GA 30096 USA 79037495A FENDT is a worldwide brand of AGCO EAME © AGCO 2020 English...
  • Page 2 Find manuals at https://best-manuals.com...
  • Page 3 TABLE OF CONTENT General Engine fuel and exhaust systems Frame and suspension Steering system Drive train system Brake system Compressed air system Hydraulic system Electrical system Air conditioning and heating system Chassis Track belt system Implement drive system Implement lift system Attachments Diagrams Special tools...

  • Page 4: Table Of Contents

    Table of contents 1 General ........... . . 1-3 Safety information 1.1.1 A word to the technician .
  • Page 5 Table of contents 1.6.4 Maintenance to be made at 400 - 800 hours intervals ......1-28 1.6.4.1 Change engine oil .

  • Page 6: Safety Information

    1. General 1.1 Safety information GUID-3C35D58D-1F5D-4B85-A915-C7BB48F47262 [V1] 1.1.1 A word to the technician Read and understand the safety section in this service manual before operating or servicing the machine. Read and understand the safety sections in the manuals for all attachments before operating or servicing attachments.

  • Page 7: Service Manual

    1. General GUID-96F0DBC2-FDAB-4BE2-A442-8D57B94A81B4 [V1] 1.1.2 Service manual WARNING: Some pictures in the manual show the shields removed to permit a clearer view. Never operate the machine with any shields removed. This service manual has been prepared with the latest service information available at publication. Read and understand the service manual carefully before doing any service on the machine.

  • Page 8: Safety Signs

    1. General IMPORTANT: If you do not follow the special instructions or procedures, you can cause damage to the machine. You can also cause damage to the process, or the area around the machine. NOTE: Information to help you do the procedure, or help you to understand. GUID-2FB17168-6A01-47C5-B298-234AF171520B [V8] 1.1.6 Safety signs WARNING:...

  • Page 9: General Safety Instruction

    1. General GUID-5D629BA7-D659-48B8-A7B0-3B99F135B7BA [V1] 1.1.8 General safety instruction CAUTION: Carefully read the operator manual before operating the machine. See all instructions and safety rules when operating or doing maintenance. GUID-FE6A41D4-536F-4C0D-BE60-FA0CCDEEB171-high.jpg [High] Fig. 4 Do not start the engine until the area is free of personnel.

  • Page 10: Pressurized Air

    1. General • Stop the engine. • Remove the switch key. • Cool the machine. Use other precautions if the conditions and environment make it necessary. For operating this machine in forestry or loader operations: This machine does not have a falling-object protective structure and must not be used in forestry or loader operations.

  • Page 11: Before You Start The Engine

    1. General GUID-344A454E-7D26-49D5-9AB4-3FEEFA88AFD5 [V3] 1.1.13 Before you start the engine Start the engine only from the operator compartment. Never short across the starter terminals or batteries. Shorting can damage electrical system or cause unexpected machine movement. Adjust the seat so full pedal travel can be achieved with operator's back against seat back.

  • Page 12: Operating Procedures

    1. General GUID-D067D7D0-F186-4274-857C-255352F3AF1A [V1] 1.1.16 Operating procedures The machine will turn with the transmission control lever in the neutral position when the engine is operating and the steering wheel is turned. Only operate the machine while in the operator's seat. Securely connect the seat belt while operating the machine.

  • Page 13: Operator Station

    1. General GUID-8E29B67F-A956-4F31-997B-8035E2F7CE16 [V2] 1.1.18 Operator station Do not drill holes or weld on the cab rollover protective structure. (ROPS) Any modifications to the inner operator station must not extend into the operator space. Any item brought into the cab must not extend into defined operator space. Secure loose items. Objects must not pose an impact hazard in rough terrain or if there is a rollover.

  • Page 14: Burn Prevention

    1. General GUID-1527F9B5-890D-4E6F-AA25-C4A364C27BA9 [V2] 1.1.21 Burn prevention Do not touch any part of an operating engine. Other components such as the transmission, the axles and the oil reservoir can also be hot. Let the engine cool before performing any maintenance on the engine.

  • Page 15: Fluid Penetration

    1. General DANGER: Diesel fuel or hydraulic fluid under pressure can penetrate the skin or eyes. This can cause serious personal injury, blindness, or death. GUID-E76BB0CD-67F0-40CD-A4CC-D6B27E9CDCCE [V2] 1.1.25 Fluid penetration Always use a board or cardboard when checking for a leak. Leaking fluid under pressure can penetrate the body tissue.

  • Page 16: Exhaust Fumes

    1. General Wash hands after touching batteries and connectors. WARNING: Batteries contain electrolyte which is an acid that can cause personal injury. Do not let the electrolyte contact the skin or eyes. Always wear protective glasses for servicing batteries. GUID-6942F6BB-021E-47D8-8B36-8FB6CB6088DB-high.jpg [High] Fig.

  • Page 17: Noise Prevention

    1. General GUID-99732186-65C2-4EC3-8EDB-760F7ABE29B7 [V1] 1.1.28 Noise prevention Wear proper hearing protective devices such as earmuffs or earplugs to prevent loss of hearing due to high noise levels. GUID-48B1B90D-20EB-42DB-A016-3CA0AB8AC168-high.jpg [High] Fig. 15 GUID-43C214E0-CE68-4B1B-9480-B36317FC1602 [V3] 1.1.29 Fire and explosion prevention Use caution when refueling a machine. Do not smoke while refueling and do not refuel near open flames or sparks.

  • Page 18: Fire Extinguisher

    1. General explosive. Repair such components in a well ventilated area away from open flames or sparks. Inspect all lines and hoses for wear or for deterioration and replace if necessary. Route hoses correctly. Lines and hoses must have sufficient support and secure clamps. Tighten all connections to recommended torque.
  • Page 19 1. General Obey all traffic rules. Operate the machine with hazard lights on, unless prevented by law. The operation of work lamps while driving on public roads is prohibited. Use of road lamps while moving on public roads is the operator's responsibility. NOTE: When the Speed Indication Symbol (SIS) is installed in the rear window, be sure to close the rear window when transporting the machine on the road.

  • Page 20: Machine Identification Information

    1. General GUID-50F4664B-3C1F-4977-8F2C-B14B939DD001 [V2] 1.2 Machine identification information GUID-B4C4B3E4-103B-4436-AA92-69EC893E09B9-high.jpg [High] Fig. 19 Rubber Track Tractor 1-17 79037495A...

  • Page 21: Serial Number Definition

    1. General Call Description Serial Number Emissions control information / Engine serial number Machine PIN plate Cab serial number (on front frame cross member) Operator seat serial number (on operator seat) Left track belt number Right track belt number Differential serial number GUID-E1FE4A3B-76AB-4AED-9469-D0E9065DD455 [V5] 1.2.1 Serial number definition GUID-6A49518D-AF69-449D-9237-C047CCBF1E02-high.jpg [High]...

  • Page 22: How To Correctly Dispose Of The Waste

    1. General GUID-D27C9EFF-D3E3-4F5E-93ED-A6E5560C23DF [V4] 1.3 How to correctly dispose of the waste The incorrect disposal of the waste can cause contamination to the environment. Bad equipment waste can include (but are not limited to) oil, fuel, coolant, brake fluid, filters, battery chemicals, tires and other. Use a leak safe container when you drain the fluids.

  • Page 23: Lubricant Viscosities And Refill Capacities

    1. General 1.4 Lubricant viscosities and refill capacities GUID-E8D816FA-6438-4587-B33A-299C7258D0EB [V1] 1.4.1 Lubricant viscosities for ambient temperatures Proper oil viscosity grade is determined by the minimum outside temperature while the machine is started and while operated. To determine the proper oil viscosity grade, refer to the minimum column in the following table. This information reflects the coldest ambient temperature condition for starting and for operating a cold machine.

  • Page 24: Fluids And Capacities

    1. General GUID-9CAA3CDD-CA90-45DD-8D4A-2690C8DBA720 [V2] 1.4.3 Fluids and capacities IMPORTANT: The fill capacities given are approximate. Do a check of the fluid levels after filling. AGCO Genuine lubricants are the recommended products for this machine. The use of other lubricants may not provide the same level of necessary performance. Fluids and fill capacities Compartment or system Approximate fill capacity...

  • Page 25: Service Intervals

    1. General GUID-37124C50-0745-4357-A05F-389C235C69EF [V1] 1.5 Service intervals IMPORTANT: Always stop the engine before starting service work Things to examine during the service interval checks: • Cab recirculation filter - clean/inspect/replace • Cab air filter - clean/replace • Check the HVAC drain lines and clean as needed •...
  • Page 26 1. General Every 10 Every Service Item Every 50 Every 250 Every 500 hours or 1000 Other hours hours hours daily hours Every Replace the power train oil 1000 pressure filter hours Lubricate the 3-point linkage Examine the batteries Get a sample of the power train system oil for analysis Replace the drive wheel hub oil Every...
  • Page 27 1. General or once a year, that which occurs first. Regular service interval. Every 50 hours when in use, otherwise every 250 hours. Initial occurrence, then at given intervals Earlier in dusty conditions If operated in wet/muddy or extremely dusty conditions, replace every 500 hours 1-24 Rubber Track Tractor 79037495A...

  • Page 28: Engine Service Information

    1. General 1.6 Engine service information GUID-17E4A930-284E-4A00-9464-8EB5C203E968 [V8] 1.6.1 Maintenance chart Maintenance chart for tractors and forest machines with 84 - 98 engines. Maintenance work Service interval / running hours 4500 Check engine oil level Check coolant level Check for oil, fuel or coolant leakages Clean cooling system (from outside) Check the condition of the belt Change engine oil and oil filter...

  • Page 29: Maintenance To Be Made Daily Or At 10 Hours Intervals

    1. General 1.6.2 Maintenance to be made daily or at 10 hours intervals GUID-F4FBA864-3D6B-4B7B-B9C4-9553DDF97DF0 [V4] 1.6.2.1 Do a check for the engine oil level Procedure Stop the engine. Wait for approximately 15 minutes. Do a check for the oil level. The oil level must be between the MAX and MIN lines on the oil dipstick.

  • Page 30: Check For Leakages

    1. General GUID-DDCF3FAD-6F66-4A7C-815E-C30E98A05EDE [V1] 1.6.2.3 Check for leakages Find any leakage points (fuel, oil, coolant) and eliminate them as soon as possible. The coolant pump is provided with a telltale hole on the left side. This hole must not be blocked. If coolant drops out of the hole, the coolant pump must immediately be repaired.

  • Page 31: Maintenance To Be Made At 400 - 800 Hours Intervals

    1. General Procedure Examine the belts visually. Change a worn, oily, or damaged belt. Replace a belt if necessary. Before you remove a belt, examine the routing to make sure the new belt routing is the same. Use a 1/2 inch breaker bar and put into the square hole of the belt tensioner.

  • Page 32: Update The Engine Software

    1. General Rotate the new oil filter carefully until the gasket touches the opposite surface. Tighten the oil filter ¾ rounds (or one (1) full round, if the height of the oil filter used is 260 mm). Use an appropriate tool for tightening if necessary. Wipe off any oil run onto the chassis.

  • Page 33: Change Fuel Filters

    1. General GUID-6175EAB7-8664-4EDD-ADDC-86B358C52959-low.svg [Low] Fig. 25 The screw head has two levels. If the screw head of the screw plug is flat, the engine has hydraulic lash adjusters. GUID-B2487765-E008-4158-878E-4F4B2A4F25F7-low.svg [Low] Fig. 26 The screw head is flat. GUID-D15E8AA3-7AF9-46A8-B256-177610E6E188 [V8] 1.6.5 Change fuel filters Absolute cleanliness is required when servicing fuel system.

  • Page 34: Bleed The Fuel System

    1. General Lubricate the filter element o-ring seal with clean fuel. Fill the outer shell of the filter element with clean fuel. Use the fuel filter wrench V837079717 and turn the filter element to its mounting bracket until the plastic flange contacts the bracket.

  • Page 35: Maintenance To Be Made At 4000 Hours Intervals

    1. General Start the engine. The fuel system removes automatically the air left in the system. NOTE: Do not use the hand pump when the engine is running. Do not use any tools or excessive force on the pre-filter hand pump. NOTE: The fuel system is equipped with a pressure sensor that alarms before interference has developed.

  • Page 36: Replace The Main Filter And The Inlet Filter Of The Supply Module

    1. General • You do not use AGCO Parts • The maintenance is incorrect or not done on time. CAUTION: Make sure that you use Diesel Exhaust Fluid (DEF) (DIN 70070 or ISO 22241 certified) in the Selective Catalytic Reduction (SCR) system. The engine is not in compliance with emission regulations.
  • Page 37 1. General CAUTION: Contamination of the Selective Catalytic Reduction (SCR) system. The engine is not in compliance with emission regulations. The Selective Catalytic Reduction (SCR) system does not operate correctly. Make sure that all seal surfaces are fully clean and that there is no damage when you install the components.

  • Page 38: Maintenance To Be Made Every Two Years

    1. General a) Use a vacuum cleaner to remove all particles around the DEF connector. b) Examine the parts for solid DEF particles. c) If necessary, clean the parts carefully with warm and clean water. d) Dry the parts carefully. Do not use compressed air! NOTE: Do not let dirt go into the DEF line or the connector on the supply module.

  • Page 39: Additional Maintenance Instructions

    1. General Fill cooling system. a) Fill the cooling system with a mixture of antifreeze and coolant until the coolant level comes above the radiator core. b) Bleed the cooling system by removing the air venting plug/temperature sensor on the thermostat housing. c) Pour coolant until the coolant level reaches the plug.
  • Page 40 1. General Object Small idler gear screws (shaft, 2 pcs): M8 Small idler gear screws (thrust ring): M8 Camshaft gear nut Rocker arm shaft bracket screw and nuts Valve cover screws Valve cover frame screws Piston cooling valve Oil pump retaining screws Oil sump drain plug, M18 Oil cooler connecting piece Coolant pump pulley screw, M10...

  • Page 41: Coolant Quality Requirements

    1. General Thread Strength class 10.9 12.9 25 Nm 35 Nm 40 Nm 50 Nm 75 Nm 85 Nm 85 Nm 125 Nm 145 Nm 135 Nm 200 Nm 235 Nm 210 Nm 310 Nm 365 Nm Use a washer with the aluminum parts. GUID-5C9A453D-3B9B-4DD7-A6D0-BE179CA6E967 [V3] 1.6.10.3 Coolant quality requirements AGCO Power Inc.
  • Page 42 1. General • Damage to the engine components and decrease the engine life • The engine to not be in compliance with the emission regulations. CAUTION: Engines with EU Stage V type approvals must use fuel that is in compliance with EN590 regulations or Directive 98/70/EC.
  • Page 43 1. General IMPORTANT: Use of high sulphur fuel in Selective Catalytic Reduction (SCR) engines and cooled external Exhaust Gas Recirculation (EGR) engines will cause damage to the aftertreatment system and cause the machine to loose performance. If you use high quantity sulphur fuels the warranty will be removed from the engine and aftertreatment system.
  • Page 44 1. General Permitted fuels Maximum permitted 1st generation Standard for biodiesel quantity biodiesel blend European Union Other areas European Union Other areas EN 590 - Europe EN 590 - Europe 0 - 8% Fatty Acid 0 - 10% Fatty Acid EN 14214 Methyl Esters Methyl Esters...
  • Page 45 1. General GUID-00C3A26A-88D6-4F74-8677-DEA36BEFF43F [V1] Engine output depending on fuel quality Different fuel qualities like temperature, density and viscosity affect the actual output of the engine. Our outputs are specified by fuel with a density of 0.84 kg/dm3 and specific heat rate of 42,7 Mj/kg at a fuel temperature of +15°C.

  • Page 46: Lubricating Oil Quality Requirements

    1. General GUID-A22F612D-A540-4675-BDC8-CA8452EF9CF3 [V2] 1.6.10.5 Lubricating oil quality requirements Engine type API-grade ACEA-grade Viscosity Stage V engines CJ-4 or CK-4 5W - 40 Good for winter use 10W - 40 Good for winter use and for summer use 15W - 40 Good for summer use NOTE: Do not use E6 engine oil in AGCO POWER engines.

  • Page 47: Technical Data

    1. General 1.7 Technical data 1.7.1 Torque specifications GUID-0BAF2E7B-A615-4A36-871A-E23E5E1880B6 [V2] 1.7.1.1 Torque specifications CAUTION: Wrong parts Mismatched or incorrect fasteners can cause damage or malfunction, or personal injury. Take care to avoid mixing metric dimensioned fasteners and inch dimensioned fasteners. Exceptions to these torques are in the service manual, if necessary.
  • Page 48 1. General Standard High Thread Size Pound Feet Newton Pound Feet Newton Pound Feet Newton lbf ft Meters Nm lbf ft Meters Nm lbf ft Meters Nm M24 x 3 530 to 640 700 to 900 600 to 730 800 to 1000 285 to 345 375 to 475 M30 x 3.5...

  • Page 49: Inch Fasteners

    1. General Size Class 4.8 Class 8.8 or 9.8 Class 10.9 Class 12.9 Lubricated Lubricated Lubricated Lubricated M16 100 M18 135 M20 190 M22 260 625 1075 800 M24 330 675 1150 850 1075 800 1350 1000 M27 490 700 1200 875 1350 1000 1700 1250 1600 1150 200 1500 M30 675 625 1300 950 1650 1200 1850 1350 230...
  • Page 50 1. General Standard taperlock studs Thread Size Pound Feet lbf ft Newton Meters Nm 5/16 7/16 1 1/8 1 1/4 1 3/8 1 1/2 1200 Four-bolt split flange Make sure the sealing surfaces are free of burrs, damage, and scratches or any unwanted particles. Lubricate the O-ring.
  • Page 51 This as a preview PDF file from best-manuals.com Download full PDF manual at best-manuals.com...

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