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© AGCO Corporation,  All rights reserved.

Part Number 79023971 C Rev.  (English)

Printed in U.S.A.

 

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

Summary of Contents for MT700 Series

Page 1: ...LIARY 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 SC...

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: ...Storm Injury Prevention 4 Mounting and Dismounting 4 Before Starting Engine 5 Engine Starting 5 Before Operation 5 Operation 5 Parking 6 Operator Station 6 Crushing Prevention and Cutting Prevention 6...

Page 5: ...ii 79023976BRev CONTENTS Find manuals at http best manuals com search s CHAL 79023971...

Page 6: ...he machine with shields removed to allow for a better view of the subject of the picture Never operate the machine with any of the shields removed Divisions and Page Numbers The service manual is sepa...

Page 7: ...ion and on the product are therefore not all inclusive If a tool procedure work method or operating technique that is not specifically recommended by AGCO is used you must satisfy yourself that it is...

Page 8: ...result in DEATH OR VERY SERIOUS INJURY WARNING Indicates a potentially hazardous situation that if not avoided could result in DEATH OR SERIOIUS INJURY CAUTION Indicates a potentially hazardous situat...

Page 9: ...nd The Implements are lowered to the ground The Transmission control lever is in the PARK position The engine is stopped The engine start switch is turned off and the switch key is removed The tractor...

Page 10: ...ine is running Check for proper operation of all controls and of all protective devices while you operate the tractor slowly in an open area Make sure that no one will be endangered before you move th...

Page 11: ...result Never attempt adjustments while the tractor is moving or while the engine is running Whenever there are attachment control linkages the clearance in the linkage area will change with movement...

Page 12: ...ference record the identification numbers in the spaces that are provided below the Illustration FIG 2 Machine PIN The plate is located on left side of the frame rail Machine PIN _____________________...

Page 13: ...______ FIG 7 Track Belt Serial Number The serial number is located on the edge of each belt Left Belt Serial Number _________________________ Right Belt Serial Number _______________________ FIG 8 Ser...

Page 14: ...ive should be applied by the supplier of that component for purposes of shipping and storage Other applications for lubricating components may also be specified in the Service Manual Constant Torque H...

Page 15: ...75 75 8 100 20 80 8 105 20 35 4 50 10 M14 x 2 120 12 160 30 130 10 175 30 60 5 80 15 M16 x 2 175 15 240 40 200 20 270 40 90 10 125 20 M20 x 2 5 340 35 460 60 390 40 530 70 185 20 250 40 M24 x 3 590 60...

Page 16: ...0 175 15 240 40 85 10 115 20 3 4 10 275 30 370 50 320 30 430 60 150 15 200 40 7 8 9 460 50 620 80 520 50 700 90 240 25 325 40 1 8 660 70 900 100 775 75 1050 150 370 35 500 65 1 1 8 7 960 100 1300 150...

Page 17: ...tightening as in service work both tube and hose connnections should be tightened finger tight and wrenched 1 4 turn O ring fittings should be tightened as for initial assembly JIC SWIVEL NUTS 37 SEA...

Page 18: ...66 liters x 4 227 cups bushel x 35 239 liters x 0 02838 bushels bushel x 0 03524 meters m x 28 378 bushels MASS ounces av x 28 35 grams g x 0 03527 ounces av pounds av x 0 4536 kilograms kg x 2 2046 p...

Page 19: ...Introduction 14 79023976BRev 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: ...30 Hydraulic Oil Cooler Remove and Install 37 Removal Procedure 37 Installation Procedure 39 Air Cleaner Remove and Install 41 Removal Procedure 41 Installation Procedure 43 Aftercooler Remove and In...

Page 26: ...efrigerant Condenser Remove and Install 78 Removal Procedure 78 Installation Procedure 80 Hood Remove 81 Removal Procedure 81 Hood Install 85 Installation Procedure 85 Drive Shaft Remove and Install 8...

Page 27: ...ecognizing potential hazardous situation before an accident occurs A person must be alert to potential hazards This person should also have the necessary training skills and the tools to perform these...

Page 28: ...or very serious injury WARNING Indicates a potentially hazardous situation that if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation that if not...

Page 29: ...als affixed to the tractor and the tractor s attachments Personal injury and death may result if these precautions are not followed The words IMPORTANT and NOTE are not related to personal safety but...

Page 30: ...maintenance under the following conditions The tractor is parked on level ground The implements are lowered to the ground The transmission control lever is in the PARK position The engine is stopped...

Page 31: ...o hands Do not attempt to get on or off the tractor while it is moving IMPORTANT Make sure that the steps are not adjusted too close to the hood on the tractor You must leave a minimum dimension of 75...

Page 32: ...f the tractor or its attachment except in the operator s seat and the instructor s seat when the engine is running FIG 12 Some photos in this manual may have been taken with shields removed for clarit...

Page 33: ...foreign material fuel oil some coolants oily rags and debris Do not weld on lines or on tanks that contain flammable fluids Use caution when you are refueling a tractor Do not smoke while you are ref...

Page 34: ...to the ROPS as this will affect the protection provided Do not alter the structure by welding cutting adding weight or drilling hole into the structure FIG 17 Keep objects away from moving fan blades...

Page 35: ...ot Only remove the cap when it is cool enough to touch with the bare hands Loosen the cap slowly to the first notch to relieve pressure then remove the cap FIG 20 Escaping fluid under high pressure ca...

Page 36: ...lyte is an acid Electrolyte can cause personal injury Do not allow electrolyte to contact the skin or the eyes Always wear protective glasses for servicing batteries Wash hand after touching the batte...

Page 37: ...rm equipment on public roads FIG 25 Auto Guide can be momentarily disabled if the satellite signal is lost It is imperative that the operator be alert to his position and conditions in the field at al...

Page 38: ...SAFETY 12 79023562BRev Find manuals at http best manuals com search s CHAL 79023971...

Page 39: ...1 Turn the disconnect switch to the OFF position 2 Remove the guard assembly on the right side of the radiator Refer to Operation and Maintenance Manual Guards Remove and Install 3 Remove the belt Ref...

Page 40: ...ion Procedure FIG 28 Installing the alternator 1 Place the alternator 2 in position on the bracket 2 Place the shield 9 in position on the alternator 3 Install the bolts 8 6 and 5 in order to hold the...

Page 41: ...p 7 Install the belt Refer to Operation and Maintenance Manual Belt Alternator and Water Pump Replace 8 Install the guard assembly on the right side of the radiator Refer to Operation and Maintenance...

Page 42: ...from the machine Installation Procedure NOTE Remove the paint from the bores and the threads of the bolts 3 before the installation procedure FIG 31 Installing the starter motor 1 Install the electric...

Page 43: ...ng and repair of the product Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids Dispose of all fluids according t...

Page 44: ...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 FIG 32 1 2 5 g00869265a Fin...

Page 45: ...m water separator bowl 13 3 Remove the water separator bowl 13 from the fuel filter element 12 4 Remove the fuel filter element 12 from the filter base 8 5 Remove the four bolts 9 which fasten the fil...

Page 46: ...90 fitting 1 from the filter base 15 Remove the O ring seals 17 from the port connectors 3 If necessary remove the four plugs 21 from the filter base 15 Remove the O ring seals 20 from the plugs 4 Re...

Page 47: ...ical components can cause a fire To help prevent possible injury turn the start switch off when changing fuel filters or water separator elements Clean up fuel spills immediately Primary Fuel Filter a...

Page 48: ...plugs 21 Install the plugs 20 in the filter base 15 3 Install the stud 15A in the filter base 15 Tighten the stud to a torque of 70 15 N m 52 11 lb ft 4 Install the filter base 15 and secure the filte...

Page 49: ...fuel valve 5 to the ON position 10 Prime the fuel system and start the engine Both of the filters must be primed Refer to the Operation and Maintenance Manual Fuel Filter Secondary Replace Refer to th...

Page 50: ...ner Remove NOTE Put identification marks on all hoses on all hose assemblies on all wires and on all tube assemblies for installation purposes Plug all hose assemblies and all tube assemblies This hel...

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