Technical manual
John Deere
7600, 7700, 7800 Tractors
Repair manual
For complete service information also see:
Diagnostic and testing manual 7600, TM1501
7700, 7800 tractors
Series 400, 6076 diesel engine. Repair CTM42
manual
Series 3029, 4039, 4045, 6059, 6068 CTM3274
diesel engine. Repair manual
Operation manual 7600, 7700, 7800 OMAR112756
tractors
English
TM1500
,
, TM1500 - 7600, 7700 and 7800 Tractors
Grp Description Page
Foreword 1
Dealer Predelivery Service 2
Quick Reference Specifications 3
05 Safety
05 Safety
Handle Fluids Safely-Avoid Fires 4
Prevent Battery Explosions 5
Prepare for Emergencies 6
Prevent Acid Burns 7
Handle Chemical Products Safely 8
Avoid High-Pressure Fluids 9
Park Machine Safely 10
Support Machine Properly 11
Wear Protective Clothing 12
Work in Clean Area 13
Service Machines Safely 14
Work in Ventilated Area 15
Illuminate Work Area Safely 16
Replace Safety Signs 17
Use Proper Lifting Equipment 18
Service Tires Safely 19
Avoid Harmful Asbestos Dust 20
Avoid Heating Near Pressurized Fluid Lines 21
Remove Paint Before Welding or Heating 22
Use Proper Tools 23
Dispose of Waste Properly 24
Live With Safety 25
10 General Information
05 General Information
General Specifications 26
Sealants and Adhesives Cross-Reference Chart 29
Glossary of Terms 30
Metric Bolt and Cap Screw Torque Values 32
Unified Inch Bolt and Cap Screw Torque Values 34
20 Engine
00 Component Removal and Installation
Special or Essential Tools 36
Service Equipment and Tools 37
Specifications 38
Repair Engine-Use CTM 39
Remove Engine 40
Install Engine in Repair Stand 45
Install Engine 46
05 Engine Repair
Repair Engine-Use CTM 47
Access to Intake and Exhaust Valves 48
Access to Front Crankshaft Seal 49
Access to Rear Crankshaft Seal-PST or PQT W/Creeper 50
Access to Rear Crankshaft Seal-PQT W/O Creeper 51
Access to Camshaft 52
Access to Timing Gear Cover 53
Remove and Install Engine Valve Cover 54
Remove and Install Front Cooling Assembly 55
30 Fuel, Air Intake, and Cooling Systems
05 Throttle Controls
Specifications 57
Repair Engine-Use CTM 58
Adjust Hand-Foot Throttle With Mechanical Linkage 59
10 Diesel Fuel System
, Specifications 61
Fuel Tank System-Exploded View 62
Remove and Install Fuel Tank 63
15 Air Intake System
Inspect and Service the Air Intake 64
20 Engine Cooling System
Service Equipment and Tools 65
Specifications 66
Test Radiator and Cap 67
Remove and Install Radiator 68
Remove and Install Viscous Fan Drive 69
Inspect Belt Tensioner 70
Replace Belt Tension Mechanism 71
Fan Belt Routing- 7600 72
Fan Belt Routing- 7700 and 7800 73
25 Air Conditioning Condenser and Coolers
Service Equipment and Tools 74
Remove Fuel-Hydraulic Oil Cooler/Condenser 75
Leak Test Fuel-Hydraulic Oil Cooler/Condenser 77
Install Fuel-Hydraulic Oil Cooler/Condenser 78
40 Electrical
05 Connectors
Service Equipment and Tools 79
Other Material 80
Using High-Pressure Washers 81
Replace Connector 82
Install Contact 83
Remove Connector Body from Blade Terminals 85
Replace (Pull Type) Connectors 86
Replace (Push Type) Connectors 87
Replace , Large and Pin Type Connectors 88
Replace Blade Type Connectors 89
Replace Small Socket Connector 90
Replace Small Pin Connector 91
Replace Connectors 92
Install Contact 94
Use Electrical Insulating Compound 96
10 Wiring Harness Routings
Ground Point Locations 97
Cab Harness Routing- Power Shift Transmission 99
Cab Harness Routing- Transmission 101
Cab Harness Routing- Power Shift and Transmission 103
Open Station Harness Routing and Component Identification 104
Harness Routing and Component Identification- Power Shift Transmission 106
Harness Routing and Component Identification-Transmission 107
PowrQuad
PowrQuad is a trademark of Deere & Company.
Engine Harness Routing and Component Identification- 6068 Engine (7600 Tractor) 108
Engine Harness Routing and Component Identification- 6076 Engine (7700 Tractor) 109
Engine Harness Routing and Component Identification- 6076 Engine (7800 Tractor) 110
15 Charging Circuit
Repair Alternator-Use CTM 111
Remove and Install Alternator 112
20 Starting Circuit
Special or Essential Tools 113
Specifications 114
Repair Starter-Use CTM 115
Remove and Install Starter Motor 116
Replace Starter Circuit Relay 117
Replace Fusible Link 118
Replace Neutral Start Switch-Transmission 119
Replace Neutral Start Switch- Power Shift Transmission 120
Replace Gear Encoder 121
John Deere
7600, 7700, 7800 Tractors
Repair manual
For complete service information also see:
Diagnostic and testing manual 7600, TM1501
7700, 7800 tractors
Series 400, 6076 diesel engine. Repair CTM42
manual
Series 3029, 4039, 4045, 6059, 6068 CTM3274
diesel engine. Repair manual
Operation manual 7600, 7700, 7800 OMAR112756
tractors
English
TM1500
,
, TM1500 - 7600, 7700 and 7800 Tractors
Grp Description Page
Foreword 1
Dealer Predelivery Service 2
Quick Reference Specifications 3
05 Safety
05 Safety
Handle Fluids Safely-Avoid Fires 4
Prevent Battery Explosions 5
Prepare for Emergencies 6
Prevent Acid Burns 7
Handle Chemical Products Safely 8
Avoid High-Pressure Fluids 9
Park Machine Safely 10
Support Machine Properly 11
Wear Protective Clothing 12
Work in Clean Area 13
Service Machines Safely 14
Work in Ventilated Area 15
Illuminate Work Area Safely 16
Replace Safety Signs 17
Use Proper Lifting Equipment 18
Service Tires Safely 19
Avoid Harmful Asbestos Dust 20
Avoid Heating Near Pressurized Fluid Lines 21
Remove Paint Before Welding or Heating 22
Use Proper Tools 23
Dispose of Waste Properly 24
Live With Safety 25
10 General Information
05 General Information
General Specifications 26
Sealants and Adhesives Cross-Reference Chart 29
Glossary of Terms 30
Metric Bolt and Cap Screw Torque Values 32
Unified Inch Bolt and Cap Screw Torque Values 34
20 Engine
00 Component Removal and Installation
Special or Essential Tools 36
Service Equipment and Tools 37
Specifications 38
Repair Engine-Use CTM 39
Remove Engine 40
Install Engine in Repair Stand 45
Install Engine 46
05 Engine Repair
Repair Engine-Use CTM 47
Access to Intake and Exhaust Valves 48
Access to Front Crankshaft Seal 49
Access to Rear Crankshaft Seal-PST or PQT W/Creeper 50
Access to Rear Crankshaft Seal-PQT W/O Creeper 51
Access to Camshaft 52
Access to Timing Gear Cover 53
Remove and Install Engine Valve Cover 54
Remove and Install Front Cooling Assembly 55
30 Fuel, Air Intake, and Cooling Systems
05 Throttle Controls
Specifications 57
Repair Engine-Use CTM 58
Adjust Hand-Foot Throttle With Mechanical Linkage 59
10 Diesel Fuel System
, Specifications 61
Fuel Tank System-Exploded View 62
Remove and Install Fuel Tank 63
15 Air Intake System
Inspect and Service the Air Intake 64
20 Engine Cooling System
Service Equipment and Tools 65
Specifications 66
Test Radiator and Cap 67
Remove and Install Radiator 68
Remove and Install Viscous Fan Drive 69
Inspect Belt Tensioner 70
Replace Belt Tension Mechanism 71
Fan Belt Routing- 7600 72
Fan Belt Routing- 7700 and 7800 73
25 Air Conditioning Condenser and Coolers
Service Equipment and Tools 74
Remove Fuel-Hydraulic Oil Cooler/Condenser 75
Leak Test Fuel-Hydraulic Oil Cooler/Condenser 77
Install Fuel-Hydraulic Oil Cooler/Condenser 78
40 Electrical
05 Connectors
Service Equipment and Tools 79
Other Material 80
Using High-Pressure Washers 81
Replace Connector 82
Install Contact 83
Remove Connector Body from Blade Terminals 85
Replace (Pull Type) Connectors 86
Replace (Push Type) Connectors 87
Replace , Large and Pin Type Connectors 88
Replace Blade Type Connectors 89
Replace Small Socket Connector 90
Replace Small Pin Connector 91
Replace Connectors 92
Install Contact 94
Use Electrical Insulating Compound 96
10 Wiring Harness Routings
Ground Point Locations 97
Cab Harness Routing- Power Shift Transmission 99
Cab Harness Routing- Transmission 101
Cab Harness Routing- Power Shift and Transmission 103
Open Station Harness Routing and Component Identification 104
Harness Routing and Component Identification- Power Shift Transmission 106
Harness Routing and Component Identification-Transmission 107
PowrQuad
PowrQuad is a trademark of Deere & Company.
Engine Harness Routing and Component Identification- 6068 Engine (7600 Tractor) 108
Engine Harness Routing and Component Identification- 6076 Engine (7700 Tractor) 109
Engine Harness Routing and Component Identification- 6076 Engine (7800 Tractor) 110
15 Charging Circuit
Repair Alternator-Use CTM 111
Remove and Install Alternator 112
20 Starting Circuit
Special or Essential Tools 113
Specifications 114
Repair Starter-Use CTM 115
Remove and Install Starter Motor 116
Replace Starter Circuit Relay 117
Replace Fusible Link 118
Replace Neutral Start Switch-Transmission 119
Replace Neutral Start Switch- Power Shift Transmission 120
Replace Gear Encoder 121
