AGCO Challenger MT945B Service Manual
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AGCO Challenger MT945B Service Manual

AGCO Challenger MT945B Service Manual

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Challenger
MT945B / MT955B / MT965B / MT975B
Tractor
SERVICE MANUAL
79026547 Rev. A
CONTENTS
INTRODUCTION.....................................................................................................................................................01
ENGINE ..................................................................................................................................................................02
POWERTRAIN........................................................................................................................................................03
FRAME ...................................................................................................................................................................04
STEERING AND IMPLEMENT HYDRAULIC SYSTEM.........................................................................................05
HYDRAULIC SCHEMATICS ..................................................................................................................................06
ELECTRICAL SCHEMATICS ............................................................................................................................................ 07
TRACTOR MANAGEMENT CENTER (TMC).........................................................................................................08
CAB ........................................................................................................................................................................09
CAB HVAC..............................................................................................................................................................10
TIRE AND BALLASTING .......................................................................................................................................11
APPEARANCE GROUP.........................................................................................................................................12
TROUBLESHOOTING ............................................................................................................................................13
© AGCO Corporation, 2007 All rights reserved.
Part Number 79026547 Rev. A (English)
Printed in U.S.A.
June 2007

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Summary of Contents for AGCO Challenger MT945B

  • Page 1 HYDRAULIC SCHEMATICS ..........................06 ELECTRICAL SCHEMATICS ............................07 TRACTOR MANAGEMENT CENTER (TMC)......................08 CAB ..................................09 CAB HVAC................................10 TIRE AND BALLASTING ............................11 APPEARANCE GROUP............................12 TROUBLESHOOTING ............................13 © AGCO Corporation, 2007 All rights reserved. Part Number 79026547 Rev. A (English) Printed in U.S.A. June 2007...

  • Page 2: Table Of Contents

    Contents ® Challenger MT945B / MT955B / MT965B / MT975B Tractor SERVICE MANUAL 79026547 Rev. A 01 - Introduction INTRODUCTION Service Manual .............................. 01-1 Divisions and Page Numbers ........................01-1 Units of Measurement ............................ 01-1 Replacement Parts ............................01-1 Important Safety Information ......................... 01-2 Safety Alert Symbol ..........................
  • Page 3 Contents INDEX ................................01-23 01-ii 79026547 Rev. A Find manuals at http://best-manuals.com/search?&s=CHAL-79026547...

  • Page 4: 79026547 Rev. A

    Introduction INTRODUCTION SERVICE MANUAL This service manual has been prepared with the latest service information available at publication. Read and understand service manual carefully before doing any service on tractor. Right-hand and left-hand, as used in manual, are determined by facing direction tractor travels when in use. Photos, illustrations and data used were current at time of printing, due to possible production changes your tractor may vary slightly.

  • Page 5: Important Safety Information

    If a tool, procedure, work method or operating technique not specifically recommended by AGCO is used, ensure it is safe for operators and others. Make sure product will not be damaged or be made unsafe by operation, lubrication, maintenance or repair procedures chosen.

  • Page 6: Safety Alert Symbol

    Introduction Safety Alert Symbol FIG. 2: This is the safety alert symbol. It means ATTENTION! BECOME ALERT! SAFETY INVOLVED! Look for it, both in this manual and on safety decals on tractor. It directs attention to information involving operator safety and safety of others. FIG.

  • Page 7: General Hazard Information

    Introduction IMPORTANT: Used to identify special instructions or procedures which, if not strictly observed, could result in damage to or destruction of tractor, process or its surroundings. NOTE: Used to indicate points of particular interest for more efficient and convenient repair or operation. Right-hand and left-hand, as used in this manual, are determined by facing direction machine travels when in use.
  • Page 8 Introduction Hydraulic oil or diesel fuel leaking under pressure can penetrate skin and cause infection or other injury. To prevent personal injury: Relieve all pressure before disconnecting fluid lines. Before applying pressure, make sure all connections are tight and components are in good condition.

  • Page 9: Protective Clothing

    Introduction Protective Clothing FIG. 7: Wear a hard hat, protective glasses and other protective equipment as required. N020903007 FIG. 7 Mounting and Dismounting FIG. 8: Mount and dismount tractor only where there are steps and/or handholds. Face tractor whenever mounting or dismounting.

  • Page 10: Exhaust Dangers

    Introduction Wear gloves to handle wire cable and do not use kinked or frayed wire cable. Retainer pins can fly when struck, ensure there are no personnel in area before striking. Wear protective glasses to protect eyes. When striking objects, chips or other debris may fly off.

  • Page 11: Operator Station

    Introduction Avoid any ground condition that could cause tractor to tip. A rollover can occur when working on hills, banks or slopes or when crossing ditches, ridges or other unexpected obstacles. When possible, operate tractor up and down slopes. Always avoid driving across slopes. Keep tractor under control and do not overload beyond capacity.

  • Page 12: Seat Belts

    Introduction Seat Belts FIG. 11: Only operate tractor from operator’s seat with seat belt fastened. Only operate controls while engine is running. Any rider in instructor’s seat must fasten seat belt. Never allow anyone on any part of tractor or its attachments except in operator’s and instructor’s seat when engine is running.

  • Page 13: Battery Disconnect

    Do not make any modifications to ROPS as this affects protection. Do not alter structure by welding, cutting, adding weight or drilling holes into structure. Any alteration, not specifically authorized by AGCO, invalidates AGCO certification for ROPS. Protection N012206001 offered by ROPS is impaired if ROPS has structural damage.

  • Page 14: Coolant Precautions

    Introduction Coolant Precautions FIG. 17: When engine’s at operating temperature, engine coolant is hot and under pressure. Radiator and all lines to heaters or engine contain hot coolant. Any contact with hot coolant or steam can cause severe burns. Allow cooling system components to cool before cooling system is drained.

  • Page 15: Batteries

    Introduction • Outer covers have embedded armoring. • End fittings are displaced. Batteries FIG. 20: Electrolyte is an acid and can cause personal injury. Do not allow electrolyte to contact skin or eyes. Always wear protective glasses for servicing batteries. Wash hands after touching batteries and connectors.

  • Page 16: Fire And Explosion Prevention

    Introduction Fire and Explosion Prevention FIG. 23: All fuels, most lubricants and some coolant mixtures are flammable. Flammable fluids leaking or spilled onto hot surfaces or electrical components can cause fire. Fire may cause personal injury and property damage. Remove all flammable materials such as fuel, oil and debris from tractor.

  • Page 17: Fire Extinguisher

    Auto-Guide System is designed to aid operator with tractor steering. Operator attention is required at all times. Asbestos Information AGCO equipment and replacement parts shipped from AGCO are asbestos-free. AGCO recommends use of only genuine AGCO replacement parts. Electrical Storm Injury Prevention When lightning is striking in vicinity of tractor, do not mount or dismount tractor.

  • Page 18: Machine Identification

    Introduction MACHINE IDENTIFICATION Product Identification Information Plate Locations Product identification number (PIN) will be used to identify a tractor designed for an operator to ride. Components such as engines, transmissions and major attachments that are not designed for an operator to ride, are identified by serial numbers.

  • Page 19: Torque Specifications

    Introduction FIG. 29: Cab Serial Number. Plate is located inside cab, below inching clutch control. Cab Serial Number: ____________________________ 00804942 FIG. 29 FIG. 30: Operators Seat Serial Number. Tag (1) is located on rear of operator’s seat. Seat Serial Number: ___________________________ KA15322 FIG.

  • Page 20: Constant Torque Hose Clamps

    Introduction Constant Torque Hose Clamps Due to extreme temperature changes, hose will heat set. Heat setting can cause hose clamps to loosen. Loose hose clamps can result in leaks. Constant torque of hose clamp helps prevent leaks. FIG. 32: Constant torque hose clamp is installed correctly under the following conditions: •...
  • Page 21 Introduction Standard Taperlock Studs Thread Size Torque Torque Pound Feet Newton Lb. Ft. Meters 1200 01-18 79026547 Rev. A Find manuals at http://best-manuals.com/search?&s=CHAL-79026547...

  • Page 22: Inch Fasteners

    Introduction Inch Fasteners Assembly Torque for Inch Fasteners Standard High Thread Size Torque Torque Torque Torque Torque Torque Pound Feet Newton Pound Feet Newton Pound Feet Newton Lb. Ft. Meters Lb. Ft. Meters Lb. Ft. Meters 1/4 - 20 9 ± 1 12 ±...

  • Page 23: Tightening Straight Thread Fittings

    Introduction TIGHTENING STRAIGHT THREAD FITTINGS Straight thread hydraulic fittings require precise tightening. Overtightening ruins sealing surfaces and require replacement of damaged parts. Proper initial tightening depends on mating parts to be connected. Proceed as follows: An adapter fitting (37° flare) connected to a double flare tube assembly, fitting must be tightened finger tight and wrenched 1/2 turn (for single flare, 1/4 turn).

  • Page 24: Metric Information

    Introduction METRIC INFORMATION MULTIPLY: To Get: MULTIPLY To Get: LINEAR inches x 25.4 millimeters (mm) x 0.03937 = inches feet x 0.3048 meters (m) x 3.281 = feet yards x 0.9144 meters (m) x 1.0936 = yards miles x 1.6093 kilometers (km) x 0.6214 = miles...
  • Page 25 Introduction NOTES 01-22 79026547 Rev. A Find manuals at http://best-manuals.com/search?&s=CHAL-79026547...
  • Page 26 Index INDEX Assembly ............01-17 Safety Alert Symbol ..........01-3 Assembly Torque for Inch Fasteners ....01-19 Safety Information ..........01-2 Safety Words And Symbols ........01-3 Before Operation ..........01-7 Tightening Straight Thread Fittings ....01-20 Torque Specifications ......... 01-16 Constant Torque Hose Clamps .......
  • Page 27 Index NOTES 01-24 79026547 Rev. A Find manuals at http://best-manuals.com/search?&s=CHAL-79026547...
  • Page 28 Contents ® Challenger MT945B / MT955B / MT965B / MT975B Tractor SERVICE MANUAL 79026547 Rev. A 02 - Engine Contents INTRODUCTION Introduction ..............................02-1 Specifications and Standards Concerning Fuel, Oil and Coolant ..............02-1 Fuel Quality ............................. 02-1 Oil Quality ..............................02-1 Coolant Quality ............................
  • Page 29 Contents Muffler Removal and Installation ....................... 02-104 Muffler Removal ..........................02-104 Muffler Installation ..........................02-106 Battery Removal and Installation ....................... 02-108 Battery Removal ..........................02-108 Battery Installation ..........................02-110 Fan Removal and Installation ........................02-112 Fan Removal ............................02-112 Fan Installation ............................ 02-115 Fan Drive Removal and Installation ......................

  • Page 30: Introduction

    Introduction INTRODUCTION INTRODUCTION The tractor utilizes a diesel engine manufactured by CAT for AGCO. Many of the components are mounted and operate directly with the CAT engine. This section describes the proper procedures to remove and install the components. If an internal engine problem arises that warrents engine...
  • Page 31 Introduction NOTES 02-2 79026547 Rev. A Find manuals at http://best-manuals.com/search?&s=CHAL-79026547...

  • Page 32: Engine Component Removal And Installation

    Engine Component Removal and Installation ENGINE COMPONENT REMOVAL AND INSTALLATION SERPENTINE BELT REPLACEMENT WARNING: Hot engine components can cause injury from burns. Before performing maintenance on the engine, allow the engine and the components to cool. Serpentine Belt Removal FIG. 1: Battery disconnect switch. IMPORTANT: Park the tractor on a hard, level surface.
  • Page 33 Engine Component Removal and Installation FIG. 3: Remove right guard. Remove bolts (1) and remove guard (2). N011906001 FIG. 3 FIG. 4: Remove left guard. NOTE: This guard does not need to be removed if replacing just the fan drive serpentine belt. Remove bolts (1) and remove guard (2).
  • Page 34 Engine Component Removal and Installation FIG. 5: Fan drive serpentine belt removal. Use a ratchet wrench in the square hole (1) on the belt tensioner (2) and turn counter clockwise to relieve belt tension. Remove serpentine belt (3). Slowly release the belt tensioner to relax into a neutral position.

  • Page 35: Serpentine Belt Installation

    Engine Component Removal and Installation Serpentine Belt Installation FIG. 7: Accessories serpentine belt install. NOTE: Skip this step if the accessories serpentine belt was not removed. Install serpentine belt (3) over pulleys on front of engine, leaving it off of alternator pulley. Ensure that belt ribs are properly seated in pulley valleys.
  • Page 36 Engine Component Removal and Installation FIG. 9: Install right guard. Install guard (2) and install bolts and washers (1) and tighten. Torque to 55 Nm (40 lbf ft). N011906001 FIG. 9 FIG. 10: Install left guard. NOTE: This step can be skipped if the left guard was not removed.
  • Page 37 Engine Component Removal and Installation FIG. 11: Connect battery at battery disconnect switch. Install key (1) and rotate to connect the battery power. N012206002 FIG. 11 02-8 79026547 Rev. A Find manuals at http://best-manuals.com/search?&s=CHAL-79026547...

  • Page 38: Alternator - Removal And Installation

    Engine Component Removal and Installation ALTERNATOR - REMOVAL AND INSTALLATION Removal Procedure WARNING: Hot engine components can cause injury from burns. Before performing maintenance on the engine, allow the engine and the components to cool. FIG. 12: Battery disconnect switch. IMPORTANT: Park the tractor on a hard, level surface.
  • Page 39 Engine Component Removal and Installation FIG. 14: Remove the guard. Remove bolts (1). Remove guard (2). M5266002 FIG. 14 FIG. 15: Remove wiring: Mark and remove wiring (1), (2), and (3) from alternator (4). M5266001 FIG. 15 02-10 79026547 Rev. A Find manuals at http://best-manuals.com/search?&s=CHAL-79026547...
  • Page 40 Engine Component Removal and Installation FIG. 16: Serpentine belt removal. Use a ratchet wrench in the square hole (1) on the belt tensioner (2) and turn clockwise to relieve belt tension. Remove serpentine belt (3). Slowly release the belt tensioner to relax into a neutral position. WARNING: Equipment parts under...

  • Page 41: Alternator Install

    Engine Component Removal and Installation Alternator Install FIG. 18: Install pulley. Install pulley (1) onto alternator shaft (2) and tighten nut (3) to 102 Nm ± 7 Nm (75 lbf ft ± 5 lbf.ft). M81406001 FIG. 18 FIG. 19: Install alternator. Place alternator (3) and install the two top bolts (1) and bottom bolt (2).
  • Page 42 Engine Component Removal and Installation FIG. 21: Install wiring. Mark and remove wiring (1), (2) and (3) from alternator (4). Connect electrical wires (1), (2) and (3) to posts on back of alternator (4). Position protective boot over power terminal(2). M5266001 FIG.
  • Page 43 Engine Component Removal and Installation FIG. 23: Connect battery at battery disconnect switch. Insert and rotate key (1) to connect the battery power. N012206002 FIG. 23 02-14 79026547 Rev. A Find manuals at http://best-manuals.com/search?&s=CHAL-79026547...

  • Page 44: Cooling Assembly - Removal And Installation

    Engine Component Removal and Installation COOLING ASSEMBLY - REMOVAL AND INSTALLATION Removal Procedure NOTE: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube assemblies for installation purposes. Any engine openings such as turbo charger, intake manifold ports and coolant ports should be plugged or capped while their respective tubes, hoses and any other connections are removed.
  • Page 45 Engine Component Removal and Installation WARNING: Personal injury can result from contact with refrigerant. Contact with refrigerant can cause frost bite. Keep face and hands away to help prevent injury. Protective goggles must always be worn when refrigerant lines are opened, even if the gauges indicate the system is empty of refrigerant.
  • Page 46 Engine Component Removal and Installation FIG. 25: Disconnect battery at battery disconnect switch. Rotate and remove key (1) to disconnect the battery power. N012206002 FIG. 25 FIG. 26: Remove fanblast guard. Remove four bolts (1) and remove fanblast guard (2). The weight of the fanblast guard is approximately 55 kg (121 lb).
  • Page 47 Engine Component Removal and Installation FIG. 29: Remove tow cable guide. (Special applications tractor only) Remove bolts (1) and remove tow cable guide (2). N041806003 FIG. 29 FIG. 30: Remove heavy duty guard. (Special applications tractor only) Remove the two bolts (1) and remove the plate (2) on each side of the heavy duty guard (4).
  • Page 48 Engine Component Removal and Installation FIG. 33: Remove air intake. Remove bolts (1). Slide air intake (2) forward. Carefully pull it out of its seal (3). N012606006 FIG. 33 FIG. 34: Remove right side charge air tube. Clean dirt off of charge air tube (1) and its connections to prevent dirt entering the system.
  • Page 49 Engine Component Removal and Installation FIG. 36: Remove left guard. Remove bolts (1) and remove guard (2). N012606004 FIG. 36 FIG. 37: Remove right guard. Remove bolts (1) and remove guard (2). N011906001 FIG. 37 02-20 79026547 Rev. A Find manuals at http://best-manuals.com/search?&s=CHAL-79026547...
  • Page 50 Engine Component Removal and Installation FIG. 38: Remove right side of fan shroud. Remove bolts (1) and nuts from shroud that hold the two halves together. Remove bolts (2) from shroud that fasten it to the cooler assembly. Remove right half of shroud (3). N011906002 FIG.
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Challenger mt955bChallenger mt965bChallenger mt975b

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