John Deere Tractors Ultimate Series X700 X720 X724 & X728 Technical Manual – PDF DOWNLOAD

Description

John Deere Tractors Ultimate Series X700 X720 X724 & X728 Technical Manual – PDF DOWNLOAD

DESCRIPTION:

John Deere Tractors Ultimate Series X700 X720 X724 & X728 Technical Manual – PDF DOWNLOAD

Introduction:

Manual Description
This technical manual is written for an experienced
technician and contains sections that are specifically for
this product. It is a part of a total product support program.
The manual is organized so that all the information on a
particular system is kept together. The order of grouping is
as follows:
• Table of Contents
• Specifications and Information
• Identification Numbers
• Tools and Materials
• Component Location
• Schematics and Harnesses
• Theory of Operation
• Operation and Diagnostics
• Diagnostics
• Tests and Adjustments
• Repair

TABLE OF CONTENTS:

John Deere Tractors Ultimate Series X700 X720 X724 & X728 Technical Manual – PDF DOWNLOAD

TM2349 X700, X720, X724 and X728 John Deere Select Series Tractors………………………….. 1
Introduction………………………………………………………………………. 3
Safety……………………………………………………………………………. 5
Recognize Safety Information…………………………………………………….. 5
Understand Signal Words…………………………………………………………. 5
Replace Safety Signs……………………………………………………………. 5
Handle Fluids Safely – Avoid Fires……………………………………………….. 5
Use Care In Handling And Servicing Batteries………………………………………. 5
Prevent Battery Explosions………………………………………………………. 6
Prevent Acid Burns……………………………………………………………… 6
Wear Protective Clothing………………………………………………………… 6
Use Care Around High-pressure Fluid Lines…………………………………………. 6
Service Machines Safely…………………………………………………………. 7
Use Proper Tools……………………………………………………………….. 7
Park Machine Safely…………………………………………………………….. 7
Support Machine Properly and Use Proper Lifting Equipment…………………………… 7
Work In Clean Area……………………………………………………………… 7
Using High Pressure Washers……………………………………………………… 7
Illuminate Work Area Safely……………………………………………………… 7
Work In Ventilated Area…………………………………………………………. 8
Warning: California Proposition 65 Warning………………………………………… 8
Remove Paint Before Welding or Heating……………………………………………. 8
Avoid Harmful Asbestos Dust……………………………………………………… 8
Service Tires Safely……………………………………………………………. 8
Avoid Injury From Rotating Blades, Augers And PTO Shafts……………………………. 9
Service Cooling System Safely……………………………………………………. 9
Handle Chemical Products Safely………………………………………………….. 9
Dispose of Waste Properly……………………………………………………….. 9
Live With Safety……………………………………………………………….. 9
Specifications & Information………………………………………………………… 11
Table of Contents………………………………………………………………. 11
Fastener Torques……………………………………………………………….. 13
Metric Fastener Torque Values………………………………………………… 13
Inch Fastener Torque Values………………………………………………….. 14
O-Ring Seal Service Recommendations………………………………………………. 15
Face Seal Fittings With Inch Stud Ends Torque………………………………….. 15
Face Seal Fittings With Metric Stud Ends Torque………………………………… 16
O-Ring Face Seal Fittings……………………………………………………. 17
O-Ring Boss Fittings………………………………………………………… 17
Straight Fitting or Special Nut Torques……………………………………….. 18
Metric Fastener Torque Value – Grade 7 (Special)……………………………….. 18
General Information…………………………………………………………….. 18
Gasoline…………………………………………………………………… 18
Gasoline Storage……………………………………………………………. 19
4 – Cycle Gasoline Engine Oil………………………………………………… 19
Break-In Engine Oil – 4-Cycle Gasoline………………………………………… 19
Hydrostatic Transmission and Hydraulic Oil…………………………………….. 20
Gear Case Oil………………………………………………………………. 20
Gear Transmission Grease…………………………………………………….. 21
Alternative Lubricants………………………………………………………. 21
Synthetic Lubricants………………………………………………………… 21
Anti-Corrosion Grease……………………………………………………….. 21
Mower Spindle Grease………………………………………………………… 21
Lubricant Storage…………………………………………………………… 21
Mixing of Lubricants………………………………………………………… 22
Oil Filters………………………………………………………………… 22
Coolant Specifications………………………………………………………….. 22
Gasoline Engine Coolant……………………………………………………… 22
Gasoline Engine Coolant Drain Interval………………………………………… 23
Serial Number Locations…………………………………………………………. 23
Product Serial Number……………………………………………………….. 23
Gasoline Engine Serial Number Location………………………………………… 23
Engine – Gas (Liquid-Cooled)………………………………………………………… 25
Table of Contents………………………………………………………………. 25
Specifications…………………………………………………………………. 27
General Specifications………………………………………………………. 27
Tests and Adjustments Specifications………………………………………….. 27
Repair Specifications……………………………………………………….. 28
Torque Specifications (Alphabetical)………………………………………….. 29
Special or Required Tools……………………………………………………. 30
Component Location……………………………………………………………… 31
Engine (FD671D)…………………………………………………………….. 31
Engine (FD750D)…………………………………………………………….. 32
Theory of Operation…………………………………………………………….. 33
Cooling System Operation…………………………………………………….. 33
Fuel and Air System Operation………………………………………………… 34
Fuel Injection Air System Components and Operation (FD750D)……………………… 34
Fuel Pressure Regulator Operation (FD750D)…………………………………….. 35
Governor Operation………………………………………………………….. 35
Lubrication System Operation…………………………………………………. 36
Throttle Body Operation (FD750D)……………………………………………… 37
Diagnostics……………………………………………………………………. 38
Engine Diagnosis……………………………………………………………. 38
Engine Tests……………………………………………………………….. 42
Tests and Adjustments…………………………………………………………… 44
Throttle Lever Adjustment……………………………………………………. 44
Throttle Cable Adjustment……………………………………………………. 44
Choke Adjustment (FD671D)……………………………………………………. 45
Governor Adjustment…………………………………………………………. 45
Low Idle Speed Adjustment……………………………………………………. 46
High Idle Speed Adjustment…………………………………………………… 46
Compression Test……………………………………………………………. 47
Valve Clearance Adjustment…………………………………………………… 47
Crankcase Vacuum Test……………………………………………………….. 48
Engine Oil Pressure Test…………………………………………………….. 50
Fuel Pump Flow Test for Carburetor (FD671D)……………………………………. 51
Fuel Pump Pressure Test for Carburetor (FD671D)………………………………… 51
Fuel Pump Pressure Test For Fuel Injection (FD750D)…………………………….. 52
Bleed Fuel System (FD750D)…………………………………………………… 53
Fan Belt Tension Adjustment………………………………………………….. 53
Thermostat Test…………………………………………………………….. 54
Cooling System Test…………………………………………………………. 54
Radiator Bubble Test………………………………………………………… 55
Radiator Cap Pressure Test…………………………………………………… 55
Water Pump/Alternator Drive Belt Adjustment……………………………………. 55
Repair………………………………………………………………………… 56
Thermostat Removal and Installation…………………………………………… 56
Fan Belt Removal and Installation…………………………………………….. 57
Cooling Fan and Bracket Removal and Installation……………………………….. 57
Coolant Pump Removal and Installation…………………………………………. 58
Radiator Removal and Installation…………………………………………….. 60
Muffler Removal and Installation……………………………………………… 62
Air Cleaner Removal and Installation………………………………………….. 63
Carburetor Removal and Installation (FD671D)…………………………………… 64
Throttle Body Removal and Installation (FD750D)………………………………… 66
Fuel Injector Removal and Installation (FD750D)………………………………… 67
Fuel Pressure Regulator Removal and Installation (FD750D)……………………….. 68
Cylinder Head Removal and Installation………………………………………… 69
Intake Manifold Removal and Installation (FD671D)………………………………. 70
Intake Manifold Removal and Installation (FD750D)………………………………. 71
Starting Motor Removal and Installation……………………………………….. 73
Starter Motor Disassembly and Assembly………………………………………… 73
Starting Motor Inspection……………………………………………………. 75
Engine Removal and Installation………………………………………………. 77
Flywheel Removal and Installation…………………………………………….. 81
Push Rod/Rocker Arm Removal and Installation…………………………………… 81
Valve Train Removal and Installation………………………………………….. 83
Crankcase Cover Removal and Installation………………………………………. 84
Crankcase Cover Inspection…………………………………………………… 86
Governor Assembly Removal and Installation…………………………………….. 86
Piston Removal and Installation………………………………………………. 88
Inspect Piston and Cylinder………………………………………………….. 91
Cylinder Bore Honing………………………………………………………… 93
Camshaft/Tappet Removal and Installation………………………………………. 94
Camshaft Disassembly and Inspection…………………………………………… 95
Crankshaft Removal and Replacement……………………………………………. 96
Crankshaft Inspection……………………………………………………….. 96
Connecting Rod Inspection……………………………………………………. 98
Breather Valve Removal and Installation……………………………………….. 99
Oil Pump Removal and Installation…………………………………………….. 99
Oil Pump Inspection………………………………………………………….100
Oil Screen Removal and Installation……………………………………………102
Electrical…………………………………………………………………………103
Table of Contents……………………………………………………………….103
General Information……………………………………………………………..107
Reading Electrical Schematics…………………………………………………107
Theory of Operation Information……………………………………………….108
Diagnostic Information……………………………………………………….108
Wire Color Abbreviation Chart…………………………………………………108
Common Circuit Tests…………………………………………………………109
Conductors For 12 Volt Circuits……………………………………………….109
Specifications………………………………………………………………….111
General Specifications……………………………………………………….111
Test and Adjustment Specifications…………………………………………….111
Repair Specifications………………………………………………………..112
Special or Essential Tools……………………………………………………113
Other Materials……………………………………………………………..114
Component Location………………………………………………………………115
Right Side………………………………………………………………….115
Left Side…………………………………………………………………..116
Engine Components (FD671D)……………………………………………………117
Engine Components (FD750D EFI)………………………………………………..118
Instrument Panel…………………………………………………………….119
Schematics and Harnesses…………………………………………………………120
Schematic and Wiring Harness Legend – X700……………………………………..120
Schematic And Wiring Harness Legend – X720/X724/X728…………………………….121
Electrical Schematic – X700 Carbureted (1 of 2)…………………………………123
Electrical Schematic – X700 Carbureted (2 of 2)…………………………………124
W1 Main Wiring Schematic – 720/X724/X728 EFI (1 of 2)……………………………125
W1 Main Wiring Schematic – 720/X724/X728 EFI (2 of 2)……………………………126
Liquid Cooled EFI Schematic (1 of 2)…………………………………………..127
Liquid Cooled EFI Schematic (2 of 2)…………………………………………..128
W1 Main Wiring Harness – X700 Carbureted (1 of 2)……………………………….129
W1 Main Wiring Harness – X700 Carbureted (2 of 2)……………………………….130
W1 Main Wiring Harness – X720/X724/X728 EFI (1 of 2)…………………………….131
W1 Main Wiring Harness – X720/X724/X728 EFI (2 of 2)…………………………….132
W2 Engine Wiring Harness – X700……………………………………………….133
W2 Engine Wiring Harness – X720/X724/X728………………………………………134
W2 Engine Wiring Harness Circuit Schematic – X720/X724/X728………………………135
W3 Headlight Wiring Harness…………………………………………………..136
W4 Rear Wiring Harness……………………………………………………….136
W5 PTO Option Wiring Harness………………………………………………….136
W6 Auxiliary Alternator Wiring Harness…………………………………………137
W6 Auxiliary Alternator Wiring Harness Circuit Schematic…………………………138
A2 EFI Module Pin and Signal Location………………………………………….139
W1 Main Wiring Harness Color Codes – X700………………………………………140
W1 Main Wiring Harness Color Codes – X720/ X724/X728…………………………….141
W2 Engine Wiring Harness Color Codes – X700…………………………………….142
W2 Engine Wiring Harness Color Codes – X720/X724/X728……………………………142
W3 Headlight Wiring Harness Color Codes………………………………………..142
W4 Rear Lights Wiring Harness Color Codes………………………………………142
W5 PTO Option Wiring Harness Color Codes……………………………………….143
W6 Auxiliary Alternator Wiring Harness Color Codes………………………………143
Operation and Diagnostics………………………………………………………..144
Power Circuit Operation – X700………………………………………………..144
Power Circuit Electrical Schematic – X700………………………………………145
Power Circuit Diagnosis – X700………………………………………………..147
Power Circuit Operation – X720/X724/X728……………………………………….153
Power Circuit Electrical Schematic – X720/X724/X728……………………………..155
Power Circuit Diagnosis – X720/X724/X728……………………………………….158
Cranking Circuit Operation – All Models………………………………………..165
Cranking Circuit Electrical Schematic – All Models………………………………166
Cranking Circuit Diagnosis – All Models………………………………………..167
Charging Circuit Operation – All Models (Standard Configuration)………………….168
Charging Circuit Operation – All Models (With Auxiliary Alternator)……………….168
Charging Circuit Electrical Schematic – All Models………………………………169
Charging Circuit Diagnosis……………………………………………………171
Charging Circuit Diagnosis – All Models (With Optional Alternator)………………..171
Ignition Circuit Operation – X700……………………………………………..172
Ignition Circuit Electrical Schematic – X700……………………………………173
Ignition Circuit Diagnosis – X700……………………………………………..175
Ignition Circuit Operation – X720/X724/X728…………………………………….177
Ignition Circuit Electrical Schematic – X720/X724/X728…………………………..178
Ignition Circuit Diagnosis – X720/X724/X728 EFI…………………………………180
PTO/RIP Circuit Operation – All Models…………………………………………181
PTO/RIP Circuit Electrical Schematic – All Models……………………………….183
PTO/RIP Circuit Diagnosis – All Models…………………………………………185
Display Panel Circuit Operation – All Models……………………………………189
A1 Display Panel Pin and Signal Location……………………………………….191
Lights Circuit Operation – All Models………………………………………….192
Lights Circuit Electrical Schematic – All Models………………………………..193
Lights Circuit Diagnosis – All Models………………………………………….194
Power Port Circuit Operation – All Models………………………………………196
Power Port Circuit Electrical Schematic – All Models…………………………….196
Power Port Circuit Diagnosis – All Models………………………………………197
Fuel Pump and Fuel Shutoff Circuit Operation – X700……………………………..198
Fuel Pump and Fuel Shutoff Circuit Electrical Schematic – X700……………………199
Fuel Pump and Fuel Shutoff Circuit Diagnosis – X700……………………………..200
Fuel Pump and Fuel Injector Circuit Operation – X720/X724/X728……………………201
Fuel Pump and Fuel Injector Circuit Electrical Schematic – X720/X724/X728………….202
Fuel Pump and Fuel Injector Circuit Diagnosis – X720/X724/X728……………………204
Fuel Injection Sensor and Diagnostic Circuit Operation – X720/X724/X728……………207
Fuel Injection Sensor and Diagnostic Circuit Electrical Schematic – X720/X724/X728….210
Tests and Adjustments……………………………………………………………212
Common Circuit Tests…………………………………………………………212
Ground Circuit Tests…………………………………………………………212
Battery Voltage and Specific Gravity Test………………………………………212
Battery – Charge…………………………………………………………….213
Battery – Load Test………………………………………………………….214
Regulated Amperage and Voltage Test……………………………………………215
Regulated Voltage Test……………………………………………………….215
Unregulated Voltage Test (Standard Configuration)……………………………….216
Unregulated Voltage Test (Optional Auxiliary Alternator)…………………………216
Stator Resistance Test (Standard Configuration)…………………………………217
Alternator Resistance Test (Optional Auxiliary Alternator)……………………….217
Starting Motor Condition……………………………………………………..218
Starter Solenoid Test………………………………………………………..218
Starting Motor Amp Draw Test………………………………………………….219
Starting Motor No-load Amperage and RPM Test……………………………………219
Starting Motor Field Windings Test…………………………………………….220
Starter Armature Test………………………………………………………..220
Engine Coolant Temperature Sensor Test…………………………………………220
Engine Oil Pressure Switch Test……………………………………………….221
Lights Switch Test…………………………………………………………..221
PTO/RIP Switch Test………………………………………………………….222
Relay Test………………………………………………………………….222
Power Port Switch Test……………………………………………………….223
Key Switch Test……………………………………………………………..223
Seat Switch Test…………………………………………………………….224
Brake Switch Test and Adjustment………………………………………………224
RIO Switch Test……………………………………………………………..225
RIO Switch Adjustment………………………………………………………..226
Fuse Test…………………………………………………………………..226
PTO Solenoid Test (Standard Front PTO)…………………………………………226
PTO Switch Test (Optional Rear PTO Installed)…………………………………..227
Fuel Shutoff Solenoid Test – X700……………………………………………..228
Diode Test………………………………………………………………….228
Fuel Tank Sensor Test………………………………………………………..228
Fuel Injector Test – X720/X724/X728……………………………………………229
Fuel Injection Module Test – X720/X724/X728…………………………………….229
Vacuum Pressure Sensor Test – X720/X724/ X728…………………………………..230
Air Temperature Sensor Test – X720/X724/ X728…………………………………..231
Coolant Temperature Sensor Test – X720/ X724/X728……………………………….231
Spark Plug Gap Test………………………………………………………….232
Spark Plug Gap Adjustment…………………………………………………….232
Ignition Coil Test…………………………………………………………..233
Spark Test………………………………………………………………….233
Repair…………………………………………………………………………234
Ignition Coil Replacement and Adjustment……………………………………….234
Stator Replacement…………………………………………………………..234
Alternator Removal, Inspection, and Installation (Optional)………………………235
Power Train – Hydrostatic……………………………………………………………237
Table of Contents……………………………………………………………….237
Specifications………………………………………………………………….239
General Specifications……………………………………………………….239
Test And Adjustment Specifications…………………………………………….239
Repair Specifications………………………………………………………..239
Special or Essential Tools……………………………………………………240
Other Materials……………………………………………………………..240
Component Location………………………………………………………………241
Hydrostatic Power Train………………………………………………………241
Final Drive (MFWD)…………………………………………………………..243
Front Axle Gear Case (MFWD)…………………………………………………..244
Front Axle Assembly (MFWD)……………………………………………………246
Rear PTO Gear Case Assembly…………………………………………………..247
MFWD Output Shaft……………………………………………………………249
Theory of Operation……………………………………………………………..251
Center Section and Directional Control Valves – Reverse System Operation…………..251
Transaxle Oil Flow System Operation……………………………………………254
External Power Train System Operation………………………………………….257
Transaxle Internal System Operation……………………………………………258
Rear PTO Component Location and Operation – Optional…………………………….262
540 Rear PTO………………………………………………………………..263
Diagnostics…………………………………………………………………….264
Hydrostatic Transmission Diagnosis…………………………………………….264
Mid-PTO System Diagnosis……………………………………………………..266
Transaxle Diagnosis………………………………………………………….267
Hydrostatic Transmission Test…………………………………………………268
Mid-PTO System Test………………………………………………………….269
Transaxle Test………………………………………………………………270
Tests and Adjustments……………………………………………………………271
Hydraulic Oil Warm-Up Procedure……………………………………………….271
Charge Pump Pressure Test…………………………………………………….271
Charge Pump Flow and Pressure Test – At Charge Pump……………………………..272
Mid-PTO Engagement Pressure and Brake Test……………………………………..274
Transaxle Neutral Adjustment………………………………………………….275
Transaxle Control Linkage Adjustment…………………………………………..276
Transaxle Linkage Full Forward Adjustment………………………………………277
Cruise Control Linkage Check and Adjustment…………………………………….277
Repair…………………………………………………………………………279
Foot Control Linkage Removal and Installation…………………………………..279
Shift Lever Linkage (MFWD) Removal and Installation……………………………..282
Oil Cooler Removal and Installation……………………………………………283
Control Arm and Damper Removal and Installation…………………………………284
Differential Lock Linkage Inspection…………………………………………..285
Charge Pump Removal and Installation…………………………………………..286
Charge Pump Disassembly and Assembly…………………………………………..287
Directional Control Valves……………………………………………………288
Hydrostatic Pressure Relief Valve (45 Loader) Installation……………………….288
Drive Shaft Removal and Installation…………………………………………..289
PTO Solenoid Valve…………………………………………………………..290
PTO Relief Valve Removal and Installation………………………………………291
PTO Relief Valve Disassembly, Inspection and Assembly……………………………291
PTO Brake Removal and Installation…………………………………………….292
PTO Brake Disassembly, Inspection and Assembly………………………………….293
PTO Drive Train (Mid-PTO) Removal and Installation………………………………294
PTO Drive Train (Mid and Rear PTO) Removal and Installation………………………295
Rear PTO Removal and Installation……………………………………………..298
Transaxle Removal and Installation…………………………………………….301
Differential Lock Shaft Disassembly and Assembly………………………………..302
Differential (2-Wheel Drive) Disassembly and Assembly……………………………304
Differential (MFWD) Disassembly and Assembly……………………………………305
PTO Clutch Disassembly, Inspection and Assembly…………………………………306
MFWD Output Shaft Removal and Installation……………………………………..308
Hydrostatic Transmission 2-WD and MFWD…………………………………………310
Hydrostatic Pump Inspection…………………………………………………..317
Transaxle Disassembly………………………………………………………..318
Transaxle (Right Cover) Disassembly and Assembly………………………………..320
Transaxle Case Inspection…………………………………………………….321
Transaxle Assembly…………………………………………………………..321
Rear Axle Assembly (Two Wheel Steer Models) Removal and Installation………………323
Rear Axle Assembly (Two Wheel Steer Models) Disassembly and Assembly………………323
Rear Axle Assembly (All Wheel Steer) Removal and Installation…………………….325
Rear Axle Assembly (All Wheel Steer) Disassembly and Assembly…………………….326
Knuckle Assembly (All Wheel Steer) Removal and Installation………………………327
Knuckle Housing Disassembly and Assembly……………………………………….327
Final Drive Cover Removal and Installation – (MFWD)……………………………..328
Final Drive Housing Removal and Installation – (MFWD)……………………………330
Spindle Housing – (MFWD)……………………………………………………..332
Drive Shaft Removal and Installation – (MFWD)…………………………………..333
Mechanical Front Wheel Drive Removal and Installation – (MFWD)……………………333
Differential Input Housing – (MFWD)……………………………………………335
Front Axle Housing Disassembly and Assembly…………………………………….336
Hydraulics…………………………………………………………………………339
Table of Contents……………………………………………………………….339
Specifications………………………………………………………………….341
General Specifications……………………………………………………….341
Test and Adjustment Specifications…………………………………………….341
Repair Torque Specifications………………………………………………….342
Special or Essential Tools……………………………………………………342
Other Materials……………………………………………………………..342
Schematics……………………………………………………………………..343
Hydraulic Schematic – Power Train……………………………………………..343
Component Location………………………………………………………………344
Hydraulic System…………………………………………………………….344
Operation and Diagnostics………………………………………………………..345
Hydraulic System…………………………………………………………….345
Hydraulic Control Valve Operation – Neutral…………………………………….346
Hydraulic Control Valve Operation – Raise………………………………………347
Hydraulic Control Valve Operation – Float………………………………………348
Hydraulic Control Valve Operation – Regen………………………………………349
Lift Cylinder Shut-off Valve – Optional………………………………………..350
Hydraulic Diagnostics………………………………………………………..350
Preliminary Hydraulic System Inspection………………………………………..353
Hydraulic System Tests……………………………………………………….354
Tests and Adjustments……………………………………………………………355
Hydraulic Oil Warm-Up Procedure……………………………………………….355
Charge Pump Pressure and Flow Test at Couplers………………………………….355
Charge Pump Pressure Test…………………………………………………….356
Lift Cylinder Leakage Test……………………………………………………357
Control Valve Leakage Test……………………………………………………358
Repair…………………………………………………………………………359
Lift Cylinder Removal and Installation…………………………………………359
Hydraulic Control Valve Removal and Installation………………………………..359
Hydraulic Control Valve………………………………………………………359
Hydraulic Control Levers and Linkage…………………………………………..362
Steering…………………………………………………………………………..363
Table of Contents……………………………………………………………….363
Specifications………………………………………………………………….365
General Specifications……………………………………………………….365
Test and Adjustment Specifications…………………………………………….365
Repair Specifications………………………………………………………..365
Special or Essential Tools……………………………………………………365
Component Location………………………………………………………………366
Steering Components – Front Wheel Steer………………………………………..366
Steering Components – All Wheel Steer………………………………………….367
Steering Components – All Wheel Steer Rear Axle…………………………………368
Theory of Operation……………………………………………………………..369
Steering System Operation…………………………………………………….369
Steering Valve Operation – Neutral…………………………………………….370
Steering Valve Operation – Turning…………………………………………….371
Steering Valve Operation – Manual……………………………………………..372
Diagnostics…………………………………………………………………….373
Steering Diagnosis…………………………………………………………..373
Steering System Tests………………………………………………………..374
Steering Link Checks…………………………………………………………375
Tests and Adjustments……………………………………………………………376
Hydraulic Oil Warm-Up Procedure……………………………………………….376
Steering Valve and Cylinder Leakage Test……………………………………….376
Toe-In Adjustment Front Wheels………………………………………………..377
Toe-In Adjustment All Wheel Steering…………………………………………..377
Repair…………………………………………………………………………379
Steering Column Removal and Installation……………………………………….379
Steering Valve Removal and Installation………………………………………..380
Steering Valve Disassembly and Assembly………………………………………..381
Steering Cylinder Removal and Installation……………………………………..384
Front Axle Removal and Installation……………………………………………384
Front Axle Disassembly and Assembly……………………………………………385
Rear Steering Linkage – All Wheel Steering……………………………………..387
Steering Intermediate Linkage – AWS……………………………………………389
Front and Rear Pivots………………………………………………………..390
Brakes…………………………………………………………………………….393
Table of Contents……………………………………………………………….393
Specifications………………………………………………………………….395
General Specifications……………………………………………………….395
Test and Adjustment Specifications…………………………………………….395
Repair Specifications………………………………………………………..395
Special or Essential Tools……………………………………………………395
Other Materials……………………………………………………………..395
Component Location………………………………………………………………396
Brake System Component Location……………………………………………….396
Brake/Differential Linkage (Exploded)………………………………………….397
Theory of Operation……………………………………………………………..398
Brake System Operation……………………………………………………….398
Diagnostics…………………………………………………………………….399
Brakes……………………………………………………………………..399
Tests and Adjustments……………………………………………………………401
Brake/Differential Linkage Adjustment………………………………………….401
Repair…………………………………………………………………………403
Brake/Differential Linkage Removal and Installation……………………………..403
Brakes Removal and Installation……………………………………………….405
Attachments………………………………………………………………………..407
Table of Contents……………………………………………………………….407
Specifications………………………………………………………………….409
General Specifications……………………………………………………….409
Torque and Repair Specifications………………………………………………411
Diagnostics…………………………………………………………………….413
48, 54 and 62-Inch Mower Deck Diagnosis………………………………………..413
45 Loader Diagnosis………………………………………………………….416
Tests and Adjustments……………………………………………………………418
Adjusting Cutting Height (48C, 54C, and 62C Mower Deck)………………………….418
Adjusting Mower Deck Wheels…………………………………………………..418
Mower Deck Level Check and Adjustment………………………………………….418
Adjusting Mower Level Side-to-Side…………………………………………….419
Adjusting Mower Level Front-to-Rear……………………………………………420
Adjusting Latch Rod………………………………………………………….420
Cylinder Leakage Test………………………………………………………..421
45 Loader Lubrication………………………………………………………..421
Repair…………………………………………………………………………422
Cleaning Grass and Debris From Machine…………………………………………422
Mower Deck Belt and Shield Removal and Installation……………………………..422
Mower Deck Blade Removal and Installation………………………………………424
Mower Deck Blade – Sharpen……………………………………………………424
Mower Deck Blade – Balance……………………………………………………425
48C Mower Deck Spindle Removal and Installation…………………………………425
Idlers……………………………………………………………………..427
Jacksheave………………………………………………………………….428
54C Mower Deck Spindle Removal and Installation…………………………………428
Jacksheave………………………………………………………………….430
Idlers……………………………………………………………………..431
62C Mower Deck Spindle Removal and Installation…………………………………431
Mower Deck Drive Shaft Removal and Installation…………………………………433
Mower Deck Drive Shaft Repair…………………………………………………434
Mower Deck Gearbox Removal and Installation…………………………………….435
Mower Deck Gearbox Repair…………………………………………………….437
General Information……………………………………………………………..438
Reading Electrical Schematics…………………………………………………438
Operation and Diagnostics…………………………………………………….439
Diagnostic Information……………………………………………………….439
Wire Color Abbreviation Chart…………………………………………………439
Common Circuit Tests…………………………………………………………440
Conductors For 12 Volt Circuits……………………………………………….440
Identification Numbers…………………………………………………………..441
Generator…………………………………………………………………..441
Alternator………………………………………………………………….441
Component Location………………………………………………………………442
Generator…………………………………………………………………..442
Alternator Components………………………………………………………..443
Control Panel……………………………………………………………….444
Generator Gear Box Components…………………………………………………445
Schematics and Harnesses…………………………………………………………446
Wiring Harness Legend………………………………………………………..446
Connectors………………………………………………………………….446
Standard Electrical Schematic…………………………………………………447
Operation and Diagnostics………………………………………………………..449
Generator Circuit Operation…………………………………………………..449
Generator Circuit Diagnosis…………………………………………………..449
Tests and Adjustments……………………………………………………………451
Generator Stator Test………………………………………………………..451
Generator Rotor Test…………………………………………………………452
Ground Fault Circuit Interrupter (GFCI) Checks………………………………….452
Generator Ground Test………………………………………………………..453
Repair…………………………………………………………………………453
Stator Excitation Field Restoration……………………………………………453
PTO Shield Removal and Installation……………………………………………454
Generator Removal and Disassembly……………………………………………..454
Gear Case Removal and Disassembly……………………………………………..454
Rotor Bearing Removal and Installation…………………………………………456
Rotor Fan Removal and Installation…………………………………………….456
Generator Assembly and Installation……………………………………………457
Control Panel Removal and Installation…………………………………………458
Miscellaneous………………………………………………………………………459
Table of Contents……………………………………………………………….459
Specifications………………………………………………………………….461
Repair Specifications………………………………………………………..461
Other Materials……………………………………………………………..461
Repair…………………………………………………………………………462
Headlights Adjustment………………………………………………………..462
Hood Removal and Installation…………………………………………………462
Fender Deck Removal and Installation…………………………………………..463
Foot Deck Removal and Installation…………………………………………….464
Fuel Tank Removal and Installation…………………………………………….464
Fuel Pump/Fuel Gauge Sensor Removal and Installation…………………………….465
Rear Wheel Removal and Installation……………………………………………466
Front Wheel Removal and Installation…………………………………………..466
Instrument Panel Removal and Installation………………………………………467
Lift Linkage Removal and Installation………………………………………….468
Lift Linkage Adjustment:……………………………………………………..469
Deck Height Stop Removal and Installation………………………………………469
Index……………………………………………………………………………..471
Numerics……………………………………………………………………….471
A……………………………………………………………………………..471
B……………………………………………………………………………..471
C……………………………………………………………………………..471
D……………………………………………………………………………..472
E……………………………………………………………………………..472
F……………………………………………………………………………..474
G……………………………………………………………………………..474
H……………………………………………………………………………..474
I……………………………………………………………………………..475
K……………………………………………………………………………..475
L……………………………………………………………………………..475
M……………………………………………………………………………..475
O……………………………………………………………………………..475
P……………………………………………………………………………..476
R……………………………………………………………………………..476
S……………………………………………………………………………..476
T……………………………………………………………………………..477
U……………………………………………………………………………..478
V……………………………………………………………………………..478
W……………………………………………………………………………..478

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