Challenger MT700 Series Service Manual
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Challenger MT700 Series Service Manual

Track tractor
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Challenger
®
MT735 / MT745 / MT755 / MT765
MT745B / MT755B / MT765B
Track Tractor
SERVICE MANUAL
79023971 C Rev.
CONTENTS
INTRODUCTION...............................................................................................................................................................01A
ENGINE .............................................................................................................................................................................02A
ENGINE AUXILIARY.........................................................................................................................................................02B
POWERTRAIN SYSTEM OPERATION...........................................................................................................................03A
POWERTRAIN DISASSEMBLY AND ASSEMBLY.........................................................................................................03B
STEERING AND BRAKE SYSTEM .................................................................................................................................04A
UNDERCARRIAGE...........................................................................................................................................................05A
HYDRAULIC AND THREE POINT HITCH TESTING AND ADJUSTING.......................................................................06A
HYDRAULIC SCHEMATICS ............................................................................................................................................06B
ELECTRICAL SCHEMATICS...........................................................................................................................................07A
TRACTOR MANAGEMENT SYSTEM CENTER (TMC) .................................................................................................08A
AUTO-GUIDE SYSTEMS OPERATION ..........................................................................................................................08B
CAB HEATING AND AIR CONDITIONING .....................................................................................................................09A
COMPONENT SPECIFICATIONS...................................................................................................................................10A
COMPONENT DISASSEMBLY AND ASSEMBLY..........................................................................................................10B
TROUBLESHOOTING ......................................................................................................................................................11A
© AGCO Corporation, All rights reserved.
Part Number 79023971 C Rev. (English)
Printed in U.S.A.

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Summary of Contents for Challenger MT700 Series

  • Page 1 Challenger ® MT735 / MT745 / MT755 / MT765 MT745B / MT755B / MT765B Track Tractor SERVICE MANUAL 79023971 C Rev. CONTENTS INTRODUCTION................................01A ENGINE .....................................02A ENGINE AUXILIARY.................................02B POWERTRAIN SYSTEM OPERATION...........................03A POWERTRAIN DISASSEMBLY AND ASSEMBLY......................03B STEERING AND BRAKE SYSTEM ..........................04A UNDERCARRIAGE................................05A HYDRAULIC AND THREE POINT HITCH TESTING AND ADJUSTING...............06A...
  • Page 2 79023976 B Rev. October, 2005 Service Manual MT700 and MT700B Series Introduction Find manuals at http://best-manuals.com/search?&s=CHAL-79023971...
  • Page 3 Find manuals at http://best-manuals.com/search?&s=CHAL-79023971...

  • Page 4: Table Of Contents

    CONTENTS CHALLENGER ® 79023976 B Rev. CONTENTS INTRODUCTION ..............................1 Service Manual ..............................1 Divisions and Page Numbers ........................1 Units of Measurement ............................1 Replacement Parts ............................. 1 Important Safety Information ..........................2 Safety Alert Symbol ............................3 Signal Words ..............................3 Informational Messages ............................
  • Page 5 CONTENTS 79023976 B Rev. Find manuals at http://best-manuals.com/search?&s=CHAL-79023971...

  • Page 6: Introduction

    Introduction INTRODUCTION SERVICE MANUAL This Service Manual is for all Challenger® MT700 Series and MT700B Series rubber track tractors. CE and Non-CE versions are included. This service manual has been prepared with the latest service information available at the time of publication.

  • Page 7: Important Safety Information

    These changes can affect the service that is given to the product. Obtain the complete and most current information before you start any job. Challenger dealers have the most current information available. WARNING: When replacement parts are...

  • Page 8: Safety Alert Symbol

    Introduction SAFETY ALERT SYMBOL FIG. 1: This is the safety alert symbol. It means ATTENTION! BECOME ALERT! SAFETY IS INVOLVED! Look for it, both in this manual and on safety decals on the tractor and planter. It will direct your attention to information that involves your safety and the safety of others.

  • Page 9: General Hazard Information

    Introduction GENERAL HAZARD INFORMATION When the engine is running and the steering wheel is Pressurized Air turned, the tractor will not turn with the transmission Air under pressure can cause personal injury. When control lever in the PARK position. The tractor will turn pressurized air is used for cleaning, wear a protective face with the transmission control lever in the NEUTRAL shield, protective clothing and protective shoes.

  • Page 10: Before Starting Engine

    Introduction Before Starting Engine Check for proper operation of all controls and of all protective devices while you operate the tractor slowly in Start the engine only from the operator compartment. an open area. Never short across the starter terminals or across the Make sure that no one will be endangered before you batteries.

  • Page 11: Parking

    Introduction Parking Rollover Protective Structure (ROPS) Park on a level surface. If you must park on a grade, Do not make any modifications to the ROPS as this will chock the tractor's belts. affect the protection provided. Do not alter the structure by welding, cutting, adding weight, or drilling holes into Move the transmission control lever to the PARK position.

  • Page 12: Machine Indentification

    Introduction MACHINE INDENTIFICATION Product Identification Information Plate Locations The product identification number (PIN) will be used to identify a powered tractor that is 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 13 Introduction FIG. 5: Cab Serial Number. The plate is located inside the cab and below the inching clutch control. Cab Serial Number: ____________________________ 00804942 FIG. 5 FIG. 6: Operators Seat Serial Number. The tag (1) is located on the rear of the operators seat. Seat Serial Number: ___________________________ KA15322 FIG.

  • Page 14: Torque Specifications

    Introduction TORQUE SPECIFICATIONS WARNING: Mismatched incorrect fasteners result damage malfunction, or personal injury. Take care to avoid mixing metric dimensioned fasteners and inch dimensioned fasteners. Exceptions to these torques are given in the Service Manual if necessary. Prior to installation of any hardware, ensure that components are in near new condition.

  • Page 15: Fasteners Information

    Introduction FASTENERS INFORMATION Metric Fasteners Assembly Torque for Metric 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 M6 x 1 9 ±...

  • Page 16: 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 17: Tightening Straight Thread Fittings

    Introduction TIGHTENING STRAIGHT THREAD FITTINGS The straight thread hydraulic fittings require precise tightening. Overtightening of the hydraulic fittings will ruin the sealing surfaces and will require the replacement of the damaged parts. Proper initial tightening depends on the mating parts to be connected.

  • Page 18: 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 19 Introduction 79023976 B Rev. Find manuals at http://best-manuals.com/search?&s=CHAL-79023971...
  • Page 20 Find manuals at http://best-manuals.com/search?&s=CHAL-79023971...
  • Page 21 © 2005 AGCO Corporation All Rights Reserved Printed in U.S.A. Find manuals at http://best-manuals.com/search?&s=CHAL-79023971...
  • Page 22 Information for the Caterpillar® engines used in these tractors, must be procured through an authorized Caterpillar® engine distributor. Find manuals at http://best-manuals.com/search?&s=CHAL-79023971...
  • Page 23 79023562 B Rev. September, 2005 Service Manual MT700 and MT700B Series Engine Auxiliary Components Find manuals at http://best-manuals.com/search?&s=CHAL-79023971...
  • Page 24 Find manuals at http://best-manuals.com/search?&s=CHAL-79023971...
  • Page 25 CONTENTS CHALLENGER ® 79023562 B Rev. CONTENTS SAFETY ................................. 1 General Information ............................1 Important Safety Information ........................1 Safety Alert Symbol ............................1 Signal Words ..............................2 Informational Messages ..........................3 General Hazard Information ......................... 4 DISASSEMBLY AND ASSEMBLY ........................13 Engine Service and Repair ..........................
  • Page 26 CONTENTS Removal Procedure ............................ 74 Installation Procedure ..........................75 Refrigerant Accumulator (With Desiccant) - Remove and Install ..............76 Removal Procedure ............................ 76 Installation Procedure ..........................77 Refrigerant Condenser - Remove and Install ....................78 Removal Procedure ............................ 78 Installation Procedure ..........................80 Hood - Remove ..............................

  • Page 27: Safety

    SAFETY SAFETY GENERAL INFORMATION Important Safety Information FIG. 1: Improper operation, lubrication, maintenance or repair of this product can be dangerous and could result in injury or death. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions.

  • Page 28: Signal Words

    SAFETY Signal Words FIG. 3: The words DANGER, WARNING or CAUTION are used with the safety alert symbol. Learn to recognize these safety alerts, and follow the recommended precautions and safe practices. DANGER: Indicates imminently hazardous situation that, if not avoided, will result in death or very serious injury.

  • Page 29: Informational Messages

    SAFETY Informational Messages FIG. 4: Do not operate or perform any lubrication, maintenance, or repair on this product, until you have read understood operation, lubrication, maintenance, and repair information. Read and understand this manual, the operator's manual, and the manual for all attachments before operating the tractor.

  • Page 30: General Hazard Information

    SAFETY General Hazard Information FIG. 5: When the engine is running and the steering wheel is turned, the tractor will not turn with the transmission control lever (1) in the PARK (P) position. The tractor will turn with the transmission control lever in the NEUTRAL (N) position.
  • Page 31 SAFETY FIG. 7: Wear a hard hat, protective glasses, and other protective equipment as required. Do not wear loose clothing or jewelry that can snag on parts of the tractor or controls. S-1127A FIG. 7 FIG. 8: Face the rear of the tractor whenever you mount the tractor and whenever you dismount the tractor.
  • Page 32 SAFETY FIG. 10: Start the engine only from the operator's seat. Never short across the starter terminals or across the batteries. Wc1955 FIG. 10 FIG. 11: Only operate the tractor while you are in the operator's seat. The seat belt must be fastened around you while you operate the tractor.
  • Page 33 SAFETY FIG. 13: Never put maintenance fluid into glass containers. Drain all fluids into a suitable container. Discard any drained fluids and discard any fluid saturated materials according to local regulations. Use all cleaning solutions with care. Wc1939 FIG. 13 FIG.
  • Page 34 SAFETY FIG. 16: Any modifications to the inside of the operator station should not project into the operator space. Support the equipment properly when you perform work beneath the equipment. Do not make any modifications to the ROPS as this will affect the protection provided.
  • Page 35 SAFETY FIG. 18: Do not touch any part of an operating engine. Allow the engine to cool before any maintenance is performed on the engine. Relieve all pressure in the air system, in the oil system, in the lubrication system, in the fuel system, or in the cooling system before any line, fittings or related items are disconnected.
  • Page 36 SAFETY FIG. 21: Use a piece of cardboard or wood to search for possible leaks, never use you hands. Do not bend high-pressure lines. Do not strike high-pressure lines. Do not install any lines that are bent or damaged. Check lines, tubes, and hoses carefully. Repair any lines that are loose or damaged.
  • Page 37 SAFETY FIG. 24: Make sure that all of the tractor lights, reflectors, and SMV are installed, in good condition, and wiped clean. Consult your local law enforcement agency for local regulation regarding movement of farm equipment on public roads. S-1025 FIG.
  • Page 38 SAFETY 79023562 B Rev. Find manuals at http://best-manuals.com/search?&s=CHAL-79023971...

  • Page 39: Disassembly And Assembly

    Disassembly and Assembly DISASSEMBLY AND ASSEMBLY ENGINE SERVICE AND REPAIR Detailed engine service and repair procedures are not included in this book. Please refer to the engine manufacturer service and repair publications. ALTERNATOR - REMOVE AND INSTALL Removal Procedure 1. Turn the disconnect switch to the OFF position. 2.

  • Page 40: Installation Procedure

    Disassembly and Assembly FIG. 27: Removing the alternator. 6. Remove the bolts (5), (6), (7), and (8). 7. Remove the shield (9) and bracket (10) from the alternator. 8. Remove the alternator (2) from the bracket. g00839856 FIG. 27 Installation Procedure FIG.
  • Page 41 Disassembly and Assembly FIG. 29: Installing the wiring. 5. Install the wiring (4), (3), and (1) to the alternator (2). 6. Install the bolt (5) securing the wiring clamp. 7. Install the belt. Refer to Operation and Maintenance Manual, Belt (Alternator and Water Pump) - Replace. 8.

  • Page 42: Electric Starting Motor - Remove And Install

    Disassembly and Assembly ELECTRIC STARTING MOTOR - REMOVE AND INSTALL Removal Procedure 1. Turn the battery disconnect switch to the OFF position. 2. Raise the hood. Refer to Operation and Maintenance Manual, Hood (Engine Compartment) - Raise/Lower. FIG. 30: Removing the starter motor. 3.

  • Page 43: Fuel Filter And Fuel Filter Base - Remove (Primary And Secondary Fuel Filters)

    Disassembly and Assembly FUEL FILTER AND FUEL FILTER BASE - REMOVE (PRIMARY AND SECONDARY FUEL FILTERS) Removal Procedure Required Tools Part Tool Description Number 9U-7070 9U-7072 NOTE: Mark the location and the orientation of all hose assemblies for reassembly purposes before the removal of any components.
  • Page 44 Disassembly and Assembly FIG. 32: Secondary fuel filter and filter base (1) and primary fuel filter and filter base (2). 1. Park the machine on a level surface and raise the hood. 2. Turn the fuel valve (5) to the OFF position. g00869265a FIG.
  • Page 45 Disassembly and Assembly Primary Fuel Filter and Filter Base FIGS. 33–34: Removing the primary fuel filter and filter base. 1. Disconnect the two hose assemblies (6) and (7) from the filter base (8). Cap the hose assemblies and plug the filter base with the Tooling (A). 2.
  • Page 46 Disassembly and Assembly Secondary Fuel Filter and Filter Base FIGS. 35–36: Removing the secondary fuel filter and filter 17 18 base. 1. Disconnect the hose assemblies (2), (3) and (4) from the port connectors (18). Cap the hose assemblies with the Tooling (A). 2.

  • Page 47: Fuel Filter And Fuel Filter Base - Install (Primary And Secondary Fuel Filters)

    Disassembly and Assembly FUEL FILTER AND FUEL FILTER BASE - INSTALL (PRIMARY AND SECONDARY FUEL FILTERS) Installation Procedure IMPORTANT: Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product.
  • Page 48 Disassembly and Assembly FIG. 38: Connecting the hose assemblies. 7. Connect the hose assemblies (6) and (7) to the filter base (8). g00869265b FIG. 38 Secondary Fuel Filter and Filter Base FIG. 39: Installing the secondary fuel filter and filter base.
  • Page 49 Disassembly and Assembly FIGS. 40–41: Connecting the hose assemblies. 7. Install an O-ring seal on the 90° port fitting (1). Install the 90° port fitting (1) in the port connectors (18). 8. Connect the hose assemblies (2), (3) and (4) to the filter base (15).

  • Page 50: Cooling Assembly - Remove

    Disassembly and Assembly COOLING ASSEMBLY - REMOVE Removal Procedure Required Tools Part Tool Description Number 6V-9512 Face Seal Plug 6V-9833 Cap Assembly 6V-9513 Plug 6V-9834 Cap Assembly 138-7573 Link Bracket Start By: a. Remove the hood. Refer to Disassembly and Assembly, Hood - Remove.
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