Ford New Holland Tractors 8670, 8670A, 8770, 8770A, 8870, 8870A, 8970, 8970A Repair Service Manuals

Ford New Holland Tractors 8670, 8670A, 8770, 8770A, 8870, 8870A, 8970, 8970A Repair Service Manuals

87018730 - Ford New Holland 70/70A Series Tractors (8670, 8670A, 8770, 8770A, 8870, 8870A, 8970, 8970A) Service Manual.pdf
87018723 - New Holland 70(A) Series Tractors Repair Manual (General Information, Engine, Transmission).pdf
Ford New Holland Tractors 8670, 8670A, 8770, 8770A, 8870, 8870A, 8970, 8970A Service Manual.pdf

Complete service repair manual with electrical wiring diagrams for Ford New Holland 70/70A Series Tractors, with all the shop information to maintain, diagnostic, repair, service like professional mechanics.

Ford New Holland 70(A) Series Tractors workshop service repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.

PRODUCT DETAILS:
Total Pages: 4,221 pages
File Format: PDF (Internal Links, Bookmarked, Table of Contents, Searchable, Printable, high quality)
Language: English

70/70A SERIES REPAIR MANUAL - MAIN SECTIONS
00 - GENERAL INFORMATION . . . 2
10 - ENGINE . . 2
21 - TRANSMISSION . . . 7
23 - DRIVE LINES . . 12
25 - FRONT MECHANICAL DRIVE . . . 12
27 - REAR DRIVE AXLE . . 15
31 - POWER TAKE-OFF . . 16
33 - BRAKES AND CONTROLS . . . 17
35 - HYDRAULIC SYSTEMS . . 20
41 - STEERING . . 29
44 - TWO-WHEEL DRIVE AXLE AND WHEELS . . . 30
50 - CLIMATE CONTROL . . . 32
55 - ELECTRICAL SYSTEMS . . . 33
90 - PLATFORM, CAB, AND BODYWORK . . 40
...

SUB-SECTIONS 00 - GENERAL INFORMATION

BOOK 1 - 87018723
Chapter 1 - General Information
00 000 Forward . . 2
Precautionary Statements . . . 3
Safety Precautions . . . 4
Health and Safety Precautions . . . 7
Tractor Identification . . 14
Service Techniques . . . 21
Sealer Specifications . . . 23
Hardware Torque Values . . 23
Lubrication . . 26
Recommended Lubricants and Coolants . . . 26 10 -- ENGINE
BOOK 1 - 87018723
Chapter 1 -- Engine and Lubrication System
Specifications . . 3
Torque Values . . . 12
Grease and Sealants . . . 14
Special Tools . . 15
Description of Operation . . 16
Cylinder Head Assembly . . 22
Camshaft Assembly . . 22
Crankshaft Assembly . . . 22
Connecting Rods . . . 22
Pistons . . . 22
Manifolds . . . 22
Cylinder Block Assembly . . 22
Timing Gears . . 22 10 -- ENGINE
BOOK 1 - 87018723
Chapter 1 -- Engine and Lubrication System (Continued)
Engine Lubrication . . . 23
Troubleshooting . . 27
Disassembly and Repair . . 30
Cylinder Head . . . 30
Cylinder Head Reassembly . . 42
Additional Information . . . 45
Crankcase Front Cassette Seal . . 47
Parts Affected . . . 47
Additional Information . . . 47
Removal of Old Style Seal and Installation of the New Cassette Seal . . 47
Front Cassette Seal Removal . . 53
Engine Front Cover and Timing Gear . . . 58
Oil Pan . . . 60
Connecting Rods, Bearings, Pistons and Rings . . . 61
Cylinder Block Overhaul . . . 64
Piston Assembly Installation . . . 69
Main Bearings, Flywheel and Crankshaft . . 70
Rear Cover Plate . . . 72
Oil Pump . . 75
Oil Filter Support Assembly . . 77
Crankshaft . . 78
Camshaft . . . 82
Engine Timing Gears . . . 84
Engine Compression Test . . . 85
Test Procedure . . 85
Test Reading . . 85
Test Conclusion . . 85 10 -- ENGINE
BOOK 1 - 87018723
Chapter 1 -- Engine and Lubrication System (Continued)
Engine Lubrication . . . 23
Troubleshooting . . 27
Disassembly and Repair . . 30
Cylinder Head . . . 30
Cylinder Head Reassembly . . 42
Additional Information . . . 45
Crankcase Front Cassette Seal . . 47
Parts Affected . . . 47
Additional Information . . . 47
Removal of Old Style Seal and Installation of the New Cassette Seal . . 47
Front Cassette Seal Removal . . 53
Engine Front Cover and Timing Gear . . . 58
Oil Pan . . . 60
Connecting Rods, Bearings, Pistons and Rings . . . 61
Cylinder Block Overhaul . . . 64
Piston Assembly Installation . . . 69
Main Bearings, Flywheel and Crankshaft . . 70
Rear Cover Plate . . . 72
Oil Pump . . 75
Oil Filter Support Assembly . . 77
Crankshaft . . 78
Camshaft . . . 82
Engine Timing Gears . . . 84
Engine Compression Test . . . 85
Test Procedure . . 85
Test Reading . . 85
Test Conclusion . . 85 10 -- ENGINE
BOOK 1 - 87018723
Chapter 2 -- Cooling System
10 000
Specifications . . 2
Description of Operation . . 4
Cooling System . . 4
Troubleshooting . . 6
Disassembly and Repair . . 7
Radiator . . 7
Thermostat . . 9
Temperature Warning Sender . . 10
Fan Blade . . . 10
Viscous Clutch Assembly . . 10
Fan Belt Tensioner . . 11
Idler Pulley . . . 11
Water Pump . . . 12 10 -- ENGINE
BOOK 1 - 87018723
Chapter 3 -- Induction System
10 000
Specifications . . 2
Description of Operation . . 4
Air Cleaner . . 4
Turbocharger . . 6
Intercooler . . 9
Troubleshooting . . 10
Intercooler Leak Test . . . 12
Disassembly and Repair . . 13
Air Cleaner . . 13
Turbocharger . . 15
Intercooler . . 21 10 -- ENGINE
BOOK 1 - 87018723
Chapter 4 -- Fuel System
10 000
Specifications . . 3
Fuel System Torque Chart . . . 4
Special Tools . . 4
Description of Operation . . 5
Testing and Diagnosis . . 19
Low Pressure Fuel System . . 20
Fuel Tank Valves . . . 20
Filter Inlet and Outlet Pressure Tests . . 20
High Pressure Fuel System . . . 25
Injection Timing Check . . 25
Fuel Injector Nozzle Check . . 28
Injector Assembly Bench Testing . . . 28
Preliminary Setup Procedure . . . 29
Perform Opening Pressure Test . . 29
Perform Nozzle Seat Leakage Test . . . 30
Perform Chatter and Spray Pattern Test . . . 31
Surging . . . 31
Fuel Shutoff Diagnosis . . 32
Shutoff Solenoid Specifications . . . 32
Preliminary Checks . . . 32
Checking Electrical Feed . . 32
Adjustments . . . 34
Bleeding the Fuel System . . . 34
Adjustment of Foot and Hand Throttle Cables . . 35
Adjustment of High Idle Speed . . . 35
Adjustment of Low Idle and Antisurge . . . 36
Removal and Installation . . 37
Fuel Lift Pump . . . 37
Fuel Shutoff Solenoid . . . 38
Fuel Injection Pump . . 39
Fuel Injection Lines . . . 47
Low-pressure Fuel Injection Lines . . 47
High-pressure Fuel Lines . . 48 10 -- ENGINE
BOOK 1 - 87018723
Chapter 4 -- Fuel System (Continued)
Injector Leak-off Line . . . 50
Fuel Filter . . . 51
Fuel Filter Manifold . . . 52
Injection Nozzles . . . 53 10 -- ENGINE
BOOK 1 - 87018723
Chapter 5 -- Engine Removal
10 000 Specifications . . 2
Description of Operation . . 3
Disassembly and Repair . . 4
Engine Removal . . . 4
Engine Installation . . 8 10 -- ENGINE
BOOK 1 - 87018723
Chapter 6 -- Fuel Tank Removal Description
10 000 Specifications . . 2
Description of Operation . . 3
Disassembly and Repair . . 4
Lower Tank Removal . . . 4
Lower Tank Installation . . 5
Top Tank Removal . . . 6
Top Tank Installation . . 6 21 -- TRANSMISSION
BOOK 1 - 87018723
Chapter 1 -- Operation and Overview Description
21 000 Specifications . . 2
Powershift Transmission . . 2
Gear Ratios . . . 2
Ground Speed . . . 3
Electrical System . . . 5
Description of Operation . . 6
Transmission Housing . . 7
Powershift Transmission Controls . . 8
Digital Display . . . 8
Inching Pedal . . 9
Starting the Engine and Moving Forward . . 10
Starting the Engine and Moving in Reverse . . . 11
Shuttle Operations . . . 12
Speed Matching . . . 13
Auto Shift . . . 14
Creeper Gears (optional) . . 15
Programmable Upshift - Downshift . . 15
Transmission Components . . 17
Clutches . . 17
Speed Clutches . . 17
Directional Clutches . . 21
Clutch Engagement . . 22
Troubleshooting and Diagnosis . . . 33 21 -- TRANSMISSION
BOOK 1 - 87018723
Chapter 2 -- Separating the Engine and Front Axle from the
Transmission Description
21 000 Specifications . . 2
Special Tools . . 2
Description of Operation . . 3
Disassembly and Repair . . 4
Engine and Side Rail Separation from the Transmission . . . 4
Four-wheel Drive Shaft Removal (if equipped) . . 8
Engine and Side Rail Reassembly . . 10 21 -- TRANSMISSION
BOOK 1 - 87018723
Chapter 3 -- Separating the Rear Axle from the Transmission Description
21 000 Specifications . . 2
Special Tools . . 2
Description of Operation . . 3
Disassembly and Repair . . 4
Rear Axle to Transmission Separation . . . 4
Reassembly . . . 8
Minimum Hardware Tightening Torques . . . 9 21 -- TRANSMISSION
BOOK 1 - 87018723
Chapter 4 -- Mechanical System Description
21 000 Specifications . . 2
Torque Specifications . . . 3
Special Tools . . 4
Description of Operation . . 5
Troubleshooting and Diagnosis . . . 6
Disassembly and Repair . . 7
Removal and Disassembly . . 7
Rear Housing and Directional Clutches - Removal . . 8
Front Housing and Speed Clutches - Removal . . . 12
Main Input Gear Assembly - Removal . . . 14
Speed Clutches - Disassembly . . . 16
Speed Clutches - Inspection . . . 21
Directional Clutches - Disassembly . . . 23
Directional Clutches - Inspection and Overhaul . . . 26
Speed/Directional Clutch - Reassembly . . . 27
Main Input Gear and Oil Seal - Disassembly Inspection, Overhaul
and Reassemble . . 29
Two Gear Clusters in Front and Rear Housing - Disassembly,
Inspection and Reassembly . . 30
Front and Rear Housings and Center Section - Inspection and Overhaul . . . 30
Torque Limiting Clutch and Sprung Damper Hub Drive Assembly -
Removal, Inspection and Replacement . . 32
Reassembly . . . 33
Speed Clutches and Front Housing . . . 33
Directional Clutches and Rear Housing . . 34
Transmission Shimming . . . 36
Front Housing Shimming . . 36
Rear Housing Shimming . . 37
Shimming the Output Shaft . . 38
Creeper Gear . . 39
Creeper Gear Repair . . . 41
Installation . . 44 21 -- TRANSMISSION
BOOK 1 - 87018723
Chapter 5 -- Hydraulic System Description
21 000 Specifications . . 3
Low-pressure Hydraulic System . . 3
Special Tools . . 4
Description of Operation . . 5
Regulator Valve Operation . . . 7
Clutch Valve Operation . . 7
Modulator Valve Operation . . 8
Electro-hydraulic Pilot Line . . 9
Troubleshooting and Diagnosis . . . 10
70/70A Series Transmission Test Sheet . . 11
Electrical/Electronic System Checks . . . 11
Hydraulic System Checks . . . 13
Clutch Apply Pressure Chart . . . 14
Pressure Testing and Adjustments . . . 15
Clutch Apply Circuit Pressure Testing . . . 17
Transmission Pressure Checklist . . . 19
Transmission Programming . . 21
Programming the Programmable Upshift, Downshift . . . 21
Programming Reverse Gear Ratios . . . 23
Transmission Calibration . . 25
Check Powershift Transmission Clutch Calibration . . 25
Calibration Review . . . 26
Calibrate F1 Directional Clutch . . . 26
Calibrate F2 Directional Clutch . . . 27
Calibrate Reverse Directional Clutch . . 27
Exit Calibration Mode . . . 28 21 -- TRANSMISSION
BOOK 1 - 87018723
Chapter 6 -- Electrical System Description
21 000 Specifications . . . 2
Electrical System . . . 2
Description of Operation . . 3
Clutch Apply Circuits . . 4
Modulation Solenoids . . . 4
Shift Control Lever . . . 5
Inching Pedal . . 6
Speed Sensors . . 6, 10
Display Module . . 6
Troubleshooting and Diagnosis . . . 7
Transmission Solenoid and Pressure Testing . . . 8
Disassembly and Repair . . 9
Control Valve Solenoids . . . 9
Chassis Control Module . . 11
Inching Pedal Switches . . . 12
Transmission Shift Control . . . 14
Calibration of Shift Constant . . . 28
Disassembly and Repair . . 31
Removal and Disassembly . . 31
Removal of the Complete Valve Assembly from the Tractor . . 31
Disassembly . . . 33
Solenoid and Valve Assembly . . 34
Speed and Directional Clutch Circuit Valves . . 34
Modulator Valves . . . 35
Regulator Valve . . 37
Lubrication and Cooling Circuit Relief Valve . . 39
Removal . . 39
Installation . . 39
Inspection . . . 40
Reassembly . . . 40
Installation . . 41 23 -- DRIVE LINES
BOOK 2 - 87018724
Chapter 1 -- Four-wheel Drive Clutch Description
23 202 Description of Operation . . 2
70 Series FWD Electronic Control Operation . . . 4
70A Series FWD Electronic Control Operation . . 5
Engaging and Disengaging Four Wheel Drive . . 5
FWD Operating Precautions . . . 5
Disassembly and Repair . . 8
Removal . . . 8
Disassembly . . . 12
Inspection . . . 13
Reassembly . . . 15
Installation . . . 18
Pressure Testing . . 23 25 -- FRONT MECHANICAL DRIVE
BOOK 2 - 87018724
Chapter 1 -- Four-Wheel Drive Dana Axle Description
25 000 Specifications . . . 2
Special Tools . . 4
25 100
Description of Operation . . 6
Troubleshooting . . 15
41 106 Adjustments . . 16
41 106 Wheel Toe-in . . . 16
25 108 FWD Steering Stop . . . 17
25 108 Hub Bearing Preload Adjustment . . 18
25 102 Check for Correct Pinion to Ring Gear Tooth Contact . . 21
25 102 Wrong Tooth Contact Pattern . . . 21
25 108 Swivel Pin Bearing Adjustment . . 23
25 104 FWD Ratios . . 23 25 -- FRONT MECHANICAL DRIVE
BOOK 2 - 87018724
Chapter 1 -- Four-Wheel Drive Dana Axle (Continued)
25 104
FWD Tire vs Gear Ratios . . 24
Four Wheel Drive Lead Factor . . 28
Front Axle Serviceability . . . 30
00 400
Lubrication . . . 30
Disassembly and Repair . . 35
25 100 Front Axle . . . 35
41 216 Steering Cylinders . . 38
25 108 Planetary Reduction . . . 40
25 108 Hub . . 44
25 108 Swivel Housing . . 47
25 108 Center Housing Swivel Bearing . . . 50
25 108 Drive Shaft . . 51
25 108 Outer Yoke . . . 54
25 102 Differential . . 56
25 102 Crown Wheel to Backlash Adjustment . . . 69 25 -- FRONT MECHANICAL DRIVE
BOOK 2 - 87018724
Chapter 2 -- Dana Supersteer  Linkage Description
25 100 Description of Operation . . 2
25 100 Supersteer Linkage Removal . . 3
25 100 Removal of Rear Support Assembly and Spherical Ball Bushing . . 5
41 106 Supersteer Linkage Adjustment . . 9 25 - FRONT MECHANICAL DRIVE
BOOK 2 - 87018724
Chapter 3 - Four Wheel Drive Carraro Axle
Specifications . . 2
Special Tools . . 3
General Information . . 7
Front Axle Differential Line . . . 8
Overall Dimensions . . 11
General Checks Prior to Disassembly . . . 16
Disassembly Operations . . 17
Front Axle Removal/Installation . . 17
Steering Cylinders Group Disassembly . . 17
Steering Cylinders Group Assembly . . 23
Final Drive Removal . . 25
Wheel Hub Disassembly . . 27
Wheel Hub Assembly . . . 29
Swivel Housing Removal . . 32
Swivel Housing Assembly . . . 33
Axle Housing Swivel Bearing . . . 34
Differential Support Group Disassembly . . . 36
Differential Support Group Assembly . . 38
Input Flange End Play Adjustment . . 39
Limited Slip Differential Removal . . . 40
Limited Slip Pinion Disassembly . . 41
Limited Slip Differential Disassembly . . 43
Limited Slip Differential Assembly . . . 45
Lockable Differential Removal . . 48
Lockable Pinion Disassembly . . 50
Lockable Differential Disassembly . . 52
Lockable Differential Assembly . . . 54
Adjustment - Pinion Shaft . . 57
Differential - Adjustments . . 61
Pinion to Ring Gear Tooth Contact Adjustment . . . 64
Wrong Tooth Contact Pattern . . 64
Swivel Housing Bearing Adjustment . . . 66
Standard Steer/Toe-In Adjustment . . 67
Supersteer Linkage Adjustment . . 68
Potentiometer Removal . . . 70
Potentiometer Installation . . 70
Potentiometer Calibration . . 72
Mode 12: Tractor Features Configuration . . 72
Mode 13: Steering Angle Sensor Operation/Calibration . . 73
New Parameter Code . . . 74
New Fault Codes . . . 77
Testing After Assembly . . 78
Troubleshooting . . 79 27 -- REAR DRIVE AXLE
BOOK 2 - 87018724
Chapter 1 -- Rear Axle Assembly Description
27 000 Specifications . . 2
Special Tools . . 3
Description of Operation . . 10
Differential Carrier . . 12
Final Reduction Drive . . . 13
Differential Lock Mechanical Operation . . 14
70 Series Differential Lock Control System Operation . . . 15
70A Series Differential Lock Control System Operation . . 16
Differential Lock Electrical Circuit Operation . . 17
Differential Lock Hydraulic Circuit Operation . . . 19
Front Axle Differential Line . . . 19
Troubleshooting . . 21
Adjustments . . . 30
Disassembly and Repair . . 51
27 100 Axle Assembly . . . 51
27 120 Axle Housing . . . 64
27 120 Planetary Overhaul . . . 85
Axle Seal . . 91
Top Cover . . . 93
27 106 Differential Assembly . . 95
27 106 Pinion Assembly . . . 112
27 110 Differential Lock Solenoid . . . 125
Pressure Testing . . . 127
Circuit Pressure Test . . . 129 31 -- POWER TAKE-OFF
BOOK 3 - 87018725
Chapter 1 -- Mechanical System Description
31 000 Specifications . . 2
Special Tools . . 3
Description of Operation . . 4
Introduction . . . 4
Power Flow - All Models . . . 5
Engaging and Disengaging the PTO . . 7
Troubleshooting and Diagnosis . . . 8
Disassembly and Repair . . 9
PTO Assembly - Removal and Installation . . . 9
Upper PTO Input Shaft - Removal and Installation . . 15
PTO Output Shaft and Driven Gear - Overhaul . . . 30
PTO Clutch Assembly - Overhaul . . . 39 31 -- POWER TAKE-OFF
BOOK 3 - 87018725
Chapter 2 -- Electro-hydraulic System Description
31 000 Specifications . . 2
Special Tools . . 3
Description of Operation . . 4
Introduction . . . 4
Engaging and Disengaging the PTO . . 5
PTO Hydraulic System Operation . . . 6
PTO Control Valve Operation . . 8
Lubrication Oil . . . 12
PTO Electrical System Operation . . . 14
Troubleshooting . . 22 31 -- POWER TAKE-OFF
BOOK 3 - 87018725
Chapter 2 -- Electro-hydraulic System (Continued)
PTO will not Engage . . 23
PTO will not Disengage . . . 25
PTO Clutch Slips Under Load . . 30
PTO Shaft Continually Turns Slowly with Engine Running
when PTO is Turned Off . . . 32
PTO Retaining Ring is Difficult to Replace . . . 33
Adjustments . . . 34
PTO Clutch Brake Band . . . 34
Disassembly and Repair . . 35
PTO Solenoid . . . 35
PTO Control Valve Assembly . . 38
PTO System Pressure Testing . . . 44
Introduction . . . 44
Pre-test Preparation . . 44
Pilot Oil Circuit Pressure Test . . 45
Clutch Apply Circuit Pressure Test . . 46
PTO Lubrication Circuit Pressure Test . . . 47 33 -- BRAKES AND CONTROLS
BOOK 3 - 87018725
Chapter 1 -- Power Brakes Description
33 202 Specifications . . 2
Description of Operation . . 4
Boosters . . 7
Master Cylinders . . 11
Rear Axle Brake Assemblies . . . 15
Four Wheel Braking . . 17
Troubleshooting . . 18 33 -- BRAKES AND CONTROLS
BOOK 3 - 87018725
Chapter 1 -- Power Brakes (Continued)
Adjustments . . . 21
Bleeding the Brakes . . 21
Brake Pedal Adjustment . . . 25
Brake Switch Adjustment . . 25
Disassembly and Repair . . . SECTION 33 -- BRAKES AND CONTROLS
BOOK 3 - 87018725
Chapter 3 -- Trailer Air Brakes
(Not Used in North America) Description
33 000 Specifications . . 2
Torque Specifications . . . 3
Safety . . 7
General Air Brake Safety . . 7
General Maintenance Instructions . . 7
Description of Operation . . 8
System Operation . . 9
Air Compressor . . 10
Unloader Valve . . 10
Reservoir Tank . . . 14
Right Hand Brake Lamp Switch . . 14
Solenoid Valve . . . 14
Dual Control Valve . . . 15
Single Control Valve . . 20
Air Pressure Switch . . 24
Trailer Brake Solenoid Power . . 24
Disassembly and Repair . . 25
Air Compressor . . 25
Air Compressor Lubrication Supply Line . . . 29
Air Compressor Lubrication Return Line . . . 29
Air Pressure Supply LIne . . 32
Unloader/Valve Silencer . . . 33
Reservoir . . . 34
Pressure Switch . . . 34
Single Control Valve . . 35
Dual Control Valve . . . 38
Solenoid Control Valve . . 39
Coupler Connectors . . 41
Adjustments . . . 42
Adjusting the Air Brake Parking Brake . . . 42
System Testing . . 44
Troubleshooting - Air Brake System . . . 47
Towed Vehicle . . . 51
Troubleshooting - Towed Vehicle . . . 52
Power Brake Valve - Overhaul . . . 26
Inspection . . . 33
Reassembly . . . 34
Installation of the Brake Lube Kit . . . 39
Rear Axle Brakes - Overhaul . . . 44
Hydraulic Trailer Brake . . . SEE SECTION 35 33 -- BRAKES AND CONTROLS
BOOK 3 - 87018725
Chapter 2 -- Parking Brake Description
33 110 Specifications . . 2
Special Tools . . 2
Description of Operation . . 3
Adjustments . . . 4
Adjust the Park Brake . . . 4
Troubleshooting . . 5
Disassembly and Repair . . 6
Parking Brake - Overhaul . . 6 33 -- BRAKES AND CONTROLS
BOOK 3 - 87018725
Chapter 4 -- Trailer Air Brake Electrical System
(Not Used in North America) Description
33 000 Description of Operation . . 2
Trailer Brake light . . 2
Low Pressure Alarm . . 2
Air Pressure Switch Power . . 3
Harness Removal and Installation . . 4
Cab Trailer Wiring Harness . . 4
Rear Trailer Harness . . . 8
Troubleshooting . . . 11 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 1 -- Introduction Description
35 000 Specifications . . 2
Description of Operation . . 4
Introduction . . 4
Closed Center Load Sensing (CCLS) Pump and Remote Valve System . . . 5
Standard Flow Hydraulic System . . . 13
Megaflow Hydraulic System . . 15
Variable Displacement Pump . . . 16
Priority Flow Divider . . . 16
Remote Control Valves . . 17
Standard Flow Tractors . . 17
Megaflow Tractor . . . 17
Low-pressure Return Circuit . . 18 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 2 -- Low-Pressure System Description
35 000 Specifications . . 2
Description of Operation . . 3
Hydraulic Pump Drive Assembly . . 3
Tandem Gear Pump Assembly . . . 4
Tandem Gear Pump Fluid Supply . . . 6
Oil Filters . . . 7
Oil Reservoir . . 7
Oil Cooler and Bypass Valve . . . 8
Low-Pressure Control Hydraulic Schematic . . . 11
35 260 Removal and Disassembly . . 12
27 170 Hydraulic Pump Inlet Screen . . . 12
27 170 Charge Pressure Regulator Valve . . . 12
21 102 Filters . . . 14
21 102 Filter Head . . . 15
21 136 Cooler Bypass Valve . . 16
10 408 Hydraulic Oil Cooler . . . 19
33 202 Accumulator . . . 21
Hydraulic Pump Driven Gear Case . . 22
Repairing the Pump Drive Gear Case Bearings . . . 23 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 3 -- Tandem Gear Pump Description
35 000 Specifications . . 2
Special Tools . . 2
Description of Operation . . 3
Operation . . . 4
35 105
Disassembly and Repair . . 5
Removal . . . 5
Disassembly . . . 7
Inspection of Parts . . 12
Assembly . . 16
Performance Testing . . 21
Installation . . . 22 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 4 -- Axial Piston Pump Description
35 000 Specifications . . 2
Special Tools . . 2
Description of Operation . . 3
35 106
Disassembly and Repair . . 16
Removal . . . 16
Tools Required . . . 17
Disassembly . . . 17
Input Shaft Seal Replacement . . 17
Seal Installation . . 18
Compensator Valve Disassembly . . . 20
Main Pump Disassembly . . . 24 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 4 -- Axial Piston Pump (Continued)
Swash Plate Removal . . . 28
Input Shaft . . 31
Pump Reassembly . . 34
Rotating Group Assembly . . 37
Flow and Pressure Compensator Valves . . . 41
Pump Installation . . . 43 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 5 -- Flow Divider Description
35 000 Specifications . . 2
Description of Operation . . 3
Priority Flow Divider . . 3
41 200
Disassembly and Repair . . 6
Removal . . . 6
Teardown . . 7
Assembly . . 8 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 6 -- 70 Series Remote Valves Description
35 000 Specifications . . 2
Special Tools . . 2
Description of Operation . . 3
Remote Valve Assembly . . 3
Remote Valve Section (Series Logic) . . 9
Remote Valve Section (Parallel Logic) . . . 15
Control Cables . . . 21
Return Tube . . . 22
Primary and Secondary Shuttles . . . 22
Order of Priority Operation . . . 28 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 7 -- 70A Series Electro-Hydraulic Remote Valves Description
35 000 Specifications . . 2
Electro Hydraulic Remote Valves . . . 3
Control Switches . . . 3
Flow Control Adjustment . . 4
Description of Operation . . 4
Flow Control Operation . . . 9
Order of Priority Operation . . . 14 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 8 -- Remote Valve Couplers Description
35 000 Specifications . . 2
Coupler Mounting Block and Coupler Repair (70 Series BSN D408953 ) . . . 3
Coupler Mounting Block and Coupler Repair (70 Series ASN D408952) . . 9 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 9 -- Remote Valve Removal and Repair Description
35 000 Removal . . 2
Remote Valve Removal . . . 2
Removing Individual Valve Assemblies . . 6
Valve Reassembly . . . 11
35 204
Teardown and Reassembly . . 16
Individual Valve Section Disassembly . . . 16
Valve Section Overhaul (70 Series) . . . 19
Detent Release Overhaul (70 Series) . . . 22 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 10 -- Three-Point Hitch Description
35 000 Specifications . . 1
Description of Operation . . 2
Three-Point Hitch . . 2
Three-Point Hitch External Linkage Components . . . 15
Quick Hitch . . 19
Troubleshooting . . 20
Disassembly and Repair . . 24
Rockshaft Removal . . . 24
Seal and Bushing Replacement . . 26
Rockshaft Installation . . . 27
Lift Cylinder Removal . . . 29 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 11 -- Power-Beyond Applicators
Special Tools . . 2
35 204
Power-Beyond Applications . . 3 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 12 -- Hydraulic Brake System Description
35 000 Closed Center Load Sensing (CCLS) Hydraulic Brake System . . 4
35 000 Operation of the European Trailer Brake System . . 4
Operation of the 10 Bar (147 PSI) Trailer Brake System (Italian Market Only) . . . 6
Trailer Brake Valve Pilot Head Operation . . 9
Trailer Brake Valve Operation . . 10
Trailer Brake Valve . . . 18
Specifications . . 18
Torques . . . 18
Special Tools . . 18
Description . . 18
Trailer Brake Valve Removal . . . 19
Trailer Brake Valve Disassembly . . . 20
Inspection and Repair . . . 23
Re-Assembly and Installation . . 23
Bleeding the Brakes . . 24
Bleeding Rear Axle Brakes . . 24
Trailer Brake Valve Bleed Screws . . . 25
Trailer Brake Pressure Test . . 25 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 13 -- Pressure and Flow Testing Description
35 000 Specifications . . 2
Special Tools . . 4
Description of Operation . . 5
35 105
Low-pressure System Testing . . 6
Testing Low-pressure System . . 6
35 106
High-pressure System Testing . . . 9
Axial Piston Pump . . 9
Steering Flow Divider Relief Pressure . . . 14
Steering Flow Divider Flow Test . . 15
Remote Valve . . . 16
Detent Release Operation . . . 17
Timed Detent Release Operation . . . 18
Three-point Hitch . . . 19
Three-point Hitch and Remote Valve Troubleshooting Aid Tool . . 24 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 14 -- EHR Calibration, Diagnostics and Hydraulic System
Troubleshooting Description
35 000 Calibration of the Electro-hydraulic Control System (EHR) . . . 2
Functions of the PDT . . . 2
Set Up . . 3
Start Calibration . . 7
Set Defaults . . . 8
Deadband . . . 9
Calibration of the Pod Levers . . 10 35 -- HYDRAULIC SYSTEMS
BOOK 4 - 87018726
Chapter 14 -- EHR Calibration, Diagnostics and Hydraulic System
Troubleshooting
Set Currents . . . 13
Setting the Flow Control Potentiometer . . 17
Changing the Lever Deadband . . . 18
Diagnostics of the Electro-hydraulic Remote Valve Control System . . 19
Solenoid Errors . . 19
Lever Errors . . . 20
System Errors . . . 20
Other Screens . . . 21
Troubleshooting Electro-hydraulic Self Test . . 22
Troubleshooting Hydraulic System . . 23
Hydraulic System Quick Checks . . 28 41 -- STEERING
BOOK 5 - 87018727
Chapter 1 -- Hydrostatic Steering Description
41 000 Specifications . . 2
Minimum Hardware Tightening Torques . . . 3
Description of Operation . . 5
Steering System Control Valve . . . 7
Steering Control Valve Types . . . 11
Steering Cylinders . . 12
Troubleshooting . . 13
Removal and Disassembly . . 18
Steering Control Valve . . 18
Parts Inspection . . 23
Assembling the Steering Control Unit . . . 24
Installing the Steering Control Valve . . . 29 44 -- TWO-WHEEL DRIVE AXLE AND WHEELS
BOOK 5 - 87018727
Chapter 1 -- Two-wheel Drive Front Axle Description
44 000 Specifications . . . 2
Special Tools . . 2
Description of Operation . . 3
Two-wheel Drive Front Axle . . 3
Troubleshooting . . 6
Adjustments . . 7
Front Wheel Track Spacing . . 7
2WD Axle Adjustment . . . 9
Front Wheel Position . . . 10
Front Wheel Toe-in . . 11
Disassembly and Repair . . 13
Axle Removal . . 13
Axle Installation . . 17
Axle Center Beam Bushing Replacement . . 21
Axle Extension Installation . . . 21
Spindle Removal and Disassembly . . . 21
Axle Extention/Spindle Bushing Replacement . . 22
Spindle Reassembly . . 22
Front Wheel Bearing . . 23
Steering Cylinder . . . 25
Center Steering Arm . . 30
Steering Rod . . 32 44 -- TWO-WHEEL DRIVE AXLE AND WHEELS
BOOK 5 - 87018727
Chapter 2 -- Four Wheel Drive (FWD) Front Axle Track Spacing Description
44 520 Specifications . . 2
Four Wheel Drive (FWD) Front Axle Track Spacing . . . 3
Four Wheel Drive Track Adjustment . . . 3
Front Wheel Positions . . 4 44 -- TWO-WHEEL DRIVE AXLE AND WHEELS
BOOK 5 - 87018727
Chapter 3 -- Rear Wheel Track Spacing Description
44 000 Specifications . . 2
Special Tools . . 2
Rear Wheel Track Spacing . . 3
Introduction . . . 3
Model 8670/8670A Tractors . . . 5
Model 8770/8770A, 8870/8870A and 8970/8970A Tractors . . . 6
Rear Wheel Track Adjustment . . . 7
Adjusting Rear Wheels . . 8
Dual Rear Wheels . . 10 44 -- TWO-WHEEL DRIVE AXLE AND WHEELS
BOOK 5 - 87018727
Chapter 4 -- Rear Wheel Removal/Replacement Description
44 520 Specifications . . 2
Special Tools . . 2
Description of Operation . . 3
Disassembly and Repair . . 3
Removal . . 3
Installation . . 5 50 -- CLIMATE CONTROL
BOOK 5 - 87018727
Chapter 1 -- Climate Control Systems Description
50 000 Introduction . . . 2
Specifications . . 3
Tightening Torques . . . 5
Description of Operation . . 6
Air Conditioning System Components . . 10
Troubleshooting and Servicing Air Conditioning System . . 25
Primary Troubleshooting and Testing . . 27
Diagnosis Chart . . 28
A/C System Performance Test and Diagnosis Chart . . . 37
50 000
Component Removal and Installation . . . 54 55 -- ELECTRICAL SYSTEMS
BOOK 6 - 87018728
Chapter 1 -- Electronic Instrument Cluster (EIC) and System Overview Description
55 418 Specifications . . 3
Description of Operation . . 4
Main Distribution Panel . . . 7
Service Diagnostics . . 9
Electronic Instrument Cluster (EIC) . . 11
Central LCDs . . 12
Tractor Performance Monitor . . . 12
Automatic Engine Shutdown . . . 13
70 Series Indicator, Warning Lamps and Audible Alarm . . 14
70A Series Indicator, Warning Lamps and Audible Alarm . . . 15
Air Filter Restriction . . . 17
Differential Lock . . 17SECTION 55 -- ELECTRICAL SYSTEMS
BOOK 6 - 87018728
Chapter 1 -- Electronic Instrument Cluster (EIC) and System Overview
(Continued)
Headlight High Beam . . . 24
System Status . . . 24
Parking Brake . . . 24
Bar Graph Displays (LCD) . . . 25
Stop and Audible Alarm Conditions . . . 26
Central Display (LCD) . . . 29
Lower Selectable Display . . 31
Electronic Instrument Cluster - Tractor Performance Monitor (TPM) . . . 33
Automatic Display Information . . 34
Selectable Display Information . . . 35
EIC Lighting Display . . 39
Troubleshooting and Diagnostics . . . 40
EIC Harness Tool . . 41
MODE 1, Operator Calibrations . . . 41
MODE 2, View Stored Fault Codes . . 50
MODE 3, All Module Input Parameters . . 53
MODE 4, EIC Output Diagnostics . . . 56
MODE 5, RHC Output Diagnostics . . 57
MODE 6, EDC Output Diagnostics . . 58
MODE 7, ETC Output Diagnostics . . 59
MODE 8, EIC Full Display Test . . . 60
MODE 9, Hardware/Software Revision Level . . . 61
MODE 10, Transmission Calibration Review and Programming . . 63
MODE 11, 3-Point Hitch and EDC Calibration . . . 66
MODE 12, Tractor Features Configuration . . . 69
MODE 13, Steering Angle Sensor Operation/Calibration (70A Series) . . 72 55 -- ELECTRICAL SYSTEMS
BOOK 6 - 87018728
Chapter 2 -- Fault Codes and Diagnostics Description
55 000 Description of Operation . . 2
70/70A Series Diagnostics Procedure Overview and Checklist . . 2
System Grounds . . . 3
70 Series Electrical System Grounds . . 4
Troubleshooting Checklist . . . 5
Special Tool for Testing Electrical Systems . . . 7
Electrical Test Procedures #1 through #4 . . 8
Fault Codes F001 to F099, 3-Point Hitch/EDC . . 14
Fault Codes F100 to F199, Right-hand Controls . . . 88
Fault Codes F200 to F299, EIC Module . . . 112
Fault Codes F300 to F399, ETC Transmission Control . . 134
Fault Codes F400 to F499, Engine Control . . 292 55 -- ELECTRICAL SYSTEMS
BOOK 7 - 87018729
Chapter 3 -- Starting System Description
55 201 Specifications . . 2
Description of Operation . . 3
Introduction . . . 3
Batteries . . 4
Cold Start System - Ether Operation (BSN D414644) . . 5
Ether Cold Start Circuit Troubleshooting . . . 7
Cold Start System - Air inlet Heater (ASN D414643) . . . 8
Air Inlet Heater Troubleshooting . . 12
Fuel Stop Solenoid and Override System . . 13
Shutdown Override . . . 14
Troubleshooting the Cranking Circuit . . 15
Disassembly and Repair . . 18 55 -- ELECTRICAL SYSTEMS
BOOK 7 - 87018729
Chapter 3 -- Starting System (Continued)
Cleaning . . 22
Armature Servicing . . . 23
Field Coil Checks . . 24
Field Coil Removal . . . 24
Solenoid Checks . . . 25
Three-Terminal Solenoid . . 26
Reassembly . . . 27
Lubrication . . 27
PInion Clearance . . . 28 55 -- ELECTRICAL SYSTEMS
BOOK 7 - 87018729
Chapter 4 -- Charging System Description
55 301 Specifications . . 2
Torque Specifications . . 3
Description of Operation . . 4
Introduction . . . 4
Features . . 4
Operating Principles . . 5
Troubleshooting and Diagnosis . . . 6
Disassembly and Repair . . 13
Unit Repair . . 13
Disassembly and Bench Checks . . . 14
Generator Assembly . . 19 55 -- ELECTRICAL SYSTEMS
BOOK 7 - 87018729
Chapter 5 -- LIGHTING, AUXILIARY POWER AND RADIOS Description
55 404 Specifications . . 3
Description of Operation . . 5
Controls . . 5
Multi-function Switch . . 6
Hazard Warning Lights . . 6
Light Operation . . 7
Work Lights . . . 8
Auxiliary Power . . 10
Auxiliary Control Mounting Locations . . . 11
Auxiliary Control Cable Routing . . . 11
Radio Installation . . . 12
Troubleshooting . . 13
Fuse and Relay Identification . . 15
Circuit Diagrams . . . 16
Brake Lights . . . 17
Head Lights . . . 19
Hazard Warning Lights . . 21
70 Series Turn Signals . . 23
70A Series Turn Signals . . . 25
Taillights . . 26
Work Lights . . . 27
Work Lights #1 . . . 28
Work Lights #2 . . . 29
Work Lights #3 . . . 30
Work Lights #4 . . . 31
Interior Lights . . 32
Auxiliary Power Sockets . . . 33
70 Series Seven-pin Trailer Connector . . 34
70A Series Seven-pin Trailer Connector . . . 35
Disassembly and Repair . . 36
Replace Headlight Assembly Bulbs . . . 36 55 -- ELECTRICAL SYSTEMS
BOOK 7 - 87018729
Chapter 5 -- LIGHTING, AUXILIARY POWER AND RADIOS (Continued)
Replace Work Sealed Beam Units . . 36
Replace Roof Mounted Turn Signal Bulbs . . 37
Replace the Fender Mounted Turn Signal and Stop Light/Parking Light Bulbs . . . 37
Electronic Instrument Cluster (EIC) Bulb Replacement . . . 38
Harness Repair . . 39
Connector Repair and Replacement . . 39
Main Harness Routing . . 39 55 -- ELECTRICAL SYSTEMS
BOOK 7 - 87018729
Chapter 6 -- Wiring Diagrams Description
55 100 Description of Operation . . 1
Harness and Connectors . . 2
Wiring Diagram Index and Key . . 16
Wiring Diagram Circuit Explanation . . 18
Glossary of Terms/Abbreviations . . 19
Component Index . . . 20
Naso Schematic (North American Version) . . . 22
Iso Schematic (European Version) . . 43 55 -- ELECTRICAL SYSTEMS
BOOK 7 - 87018729
Chapter 7 -- Electro-Hydraulic Remote Valve Control System Description
55 301 System Description . . . 2
Electrical Operation . . . 2
Electro-hydraulic Remote Valve Switch Control Pod Locations . . 3
The Switch Control Pod Components . . . 3
Remote Valve Solenoid Connections . . 4
Programmable Controller Location . . 4
Switch Valve Color-coding . . . 5
Electro-hydraulic Control Switch Function Positions . . . 6
Electro-hydraulic Flow Control Knob . . 7
Manual Programmable Operation Switch . . 7
Electro-hydraulic Remote Valve Engagement Switch . . 7
Fuse Panel Location . . 8
Fuse Panel Access . . . 8
Fuse Location . . . 9
Control Relays . . . 10
Main Fuse Panel Location . . 11
Main Fuse Panel Access . . . 11
Main Fuses . . 12
Manual Operation . . 12
Programmable Mode . . . 14
Flow Control . . . 17
Continuity Test - Short to Ground . . . 18
EHR Electrical Test Procedures . . 18
Continuity Test - Check for Open Circuits . . 19
Voltage Measurement or Short to Positive Supply Volts . . 21
Removal of the Electro-hydraulic Remote Control Valve Switch Pod Assembly . . 23
Reassemble of the Electro-hydraulic Remote Control Valve Switch Pod Assembly . . . 25
Removal of the Electro-hydraulic Remote Control Valve Programmable Controller . . . 25
Installation of the Electro-hydraulic Remote Control Valve Programmable Controller . . . 25 90 -- PLATFORM, CAB, AND BODYWORK
BOOK 7 - 87018729
Chapter 1 -- Cab Components Description
90 000 Description . . 2
Disassembly and Assembly . . 3
90 160 Headliner . . 3
90 160 Cab Trim . . 6
90 124 Seat . . 8
90 154 Door Removal . . 28
90 156 Rear Window . . . 29
90 110 Instrument Cluster . . 30
41 204 Steering Column . . 30
35 204 Right-hand Console . . . 34
Procedures For Right-hand Console Upgrade . . . 37 90 -- PLATFORM, CAB, AND BODYWORK
BOOK 7 - 87018729
Chapter 2 -- Engine Hood Removal Description
90 100 Specifications . . 2
Description of Operation . . 3
Disassembly and Repair . . 4
Hood . . 4
Hood and Upper Engine Frame . . . 9 90 -- PLATFORM, CAB, AND BODYWORK
BOOK 7 - 87018729
Chapter 3 -- Cab Removal Description
90 150 Specifications . . 2
Special Tools . . 2
Description of Operation . . 3
Disassembly and Repair . . 4
Cab Removal . . 4
Cab Installation . . 10
Cold Start Assist (Ether) . . . 18
Cold Start Assist (air inlet) . . . 18
Coolant Level Low . . 19
Alternator Charge Indicator . . 19
Intercooler Overheated . . 20
Transmission Pressure Low . . . 20
Transmission, Rear Axle/Hydraulic Oil Temperature . . . 20
Hydraulic/Transmission Filters Restricted . . 21
PTO Engaged . . . 22
Programmable Up Shift . . . 22
Programmable Down Shift . . . 22
70 Series FWD On . . . 23
FWD Auto . . . 23
70A Series FWD On . . 23
FWD Auto . . . 23
Four Wheel Drive (FWD) Switch (if equipped) . . 23