Overview
The Massey Ferguson 8650, 8660, 8670, 8680 and 8690 Tier 3 tractor workshop service manual provides a technical reference for servicing and repairing the 8600 Series. It documents major mechanical assemblies, engine systems, transmission components, axles, hydraulics and electrical equipment.
The indexed procedures address SisuDiesel engine troubleshooting, ML260 Dyna-VT gearbox service, HA260 rear axle and braking systems, DANA770 front axle components, hydraulic testing, electrical diagrams, electronic fault codes and cab equipment. Component layouts, adjustments, calibrations and service tool references support workshop diagnosis and repair.
Notice: The supplied workshop manual index contains separate sections for the 8600 Series and 8600 T4i Series, including Tier 3 and Tier 4i engine systems. Refer to the sections matching the tractor’s actual configuration.
Table of Contents
Massey Ferguson 8650, 8660, 8670, 8680, 8690 Tier 3 Manual
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01. Introduction
- Using the Workshop Manual
- 8600 Series Tractor General Specifications
- 8600 T4i Series Tractor General Specifications
- Dyna-VT Mode Forward Speeds
- Stepshift Mode Forward Speeds
- Tractor Dimensions and Weights
- Front Linkage Attachment Points and Dimensions
- Tractor Fluid Capacities
- Accumulator Pressure and Volume Specifications
- Conversion Tables, Retaining Compounds and Sealants
- Instrument Panel Indicators and Error Codes
- SisuDiesel Tier 3 and Tier 4i Engine Error Codes
- e3 SCR Technology Engine Error Codes
- Transmission, Four-Wheel Drive and Differential Lock Error Codes
- Power Take-Off and ParkLock Error Codes
- Front Axle Suspension and Cab Suspension Error Codes
- Linkage, Armrest and Hydraulic Valve Error Codes
- Air Conditioning and Lighting Error Codes
- Fuse Boxes and Battery Isolator
- Electrical Connector and Wiring Harness Identification
- Battery, Charging and Starting Circuit Diagrams
- Transmission, PTO and Four-Wheel-Drive Electrical Diagrams
- Engine Management and SCR System Electrical Diagrams
- CAN Network, Isobus and Electronic Controller Diagrams
- Hydraulic Circuit Diagrams for Transmission, Steering and Brakes
- Hydraulic Circuit Diagrams for Linkages, Suspension and Auxiliary Valves
- Engine Valve Clearance and Fuel System Adjustments
- Brake, Clutch and Trailer Brake Bleeding Procedures
- Transmission Filling and Filter Servicing
- Forward Speed, Control Lever and Throttle Pedal Calibrations
- Front Axle, Cab Suspension and Linkage Calibrations
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02. Separation of Assemblies
- Front Side Member Disassembly and Reassembly
- Front Side Member Procedures for 8600 T4i Tractors
- Moving Side Members Forward Without Removing the Engine
- Front Axle Removal and Refitting
- Engine Removal and Refitting
- Engine Removal Procedures for 8600 T4i Tractors
- Urea (AdBlue/DEF) Tank Removal and Refitting
- Engine Flywheel Spacer Disassembly and Reassembly
- Hydraulic Spacer Removal and Refitting
- Rear Axle and Gearbox Separation
- Cab Removal and Refitting
- Rear Auxiliary Hydraulic Unit Disassembly and Reassembly
- Hydraulic Units and Pipes Removal and Refitting
- Front Linkage Removal and Refitting
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03. Engine and Emissions Systems
- Sisu Tier 3 Engine General Information and Specifications
- Tier 3 Engine Mechanical Operating Principles
- Tier 3 Engine Lubrication and Cooling Systems
- Tier 3 Engine Air Intake and Exhaust Systems
- Tier 3 Engine Fuel System and Electronic Controls
- SisuDiesel Tier 3 Engine Fault Codes
- Tier 3 Engine Component Layout and Identification
- Common Rail Electronic Injection Components
- Fuel Supply Pressure Measurement
- Engine Oil Pressure Measurement
- Engine Valve Clearance Adjustment
- Throttle Pedal Potentiometer Adjustment
- Fuel System Bleeding
- Cylinder Block and Flywheel Housing Service
- Cylinder Head and Valve Mechanism Disassembly
- Crankshaft, Connecting Rod and Piston Service
- Engine Timing Housing Assemblies
- Lubrication and Cooling System Component Service
- Intake, Exhaust, Injectors and Pump Service
- Engine Electrical Control Components
- Sisu Tier 4i Engine General Information and Specifications
- Tier 4i Engine Lubrication, Cooling and Fuel Systems
- Tier 4i Engine Common Rail and Electronic Control Systems
- Tier 4i Engine Error Codes and Component Layouts
- Tier 4i Engine Oil Pressure Testing and Valve Clearance Adjustment
- Tier 4i Throttle Adjustment and Fuel System Bleeding
- Engine Crankcase Ventilation (CCV) Breather
- e3 SCR Technology General Information and Operating Principles
- AdBlue/DEF Safety Instructions and Technical Reference
- e3 SCR System Schematic and Component Layouts
- Tier 3 SCR System Error Codes
- SCR Metering Module and Injector Service
- SCR Coolant Solenoid Valve and Voltage Converter
- AdBlue/DEF Tank Removal and Refitting
- SCR Catalyst and Fluid Return/Pressure Lines
- SCR System Water Pump Service, Where Fitted
- Tier 4i SCR Pump Module and Pressurised Line Service
- Tier 4i SCR Tank, Catalyst, Injector and CCV Breather Service
- Engine and SCR System Service Tools
- 04. Clutch
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05. Gearbox and Transmission
- ML260 Gearbox General Information
- Dyna-VT Transmission Operating Principles
- Transmission Operating Principle Diagrams
- ML260 Transmission Error Codes
- Four-Wheel Drive and Differential Lock Error Codes
- Transmission Electrical and Hydraulic Circuit Diagrams
- Forward/Reverse High-Pressure Relief Valves
- Transmission Flushing Valve and Control Spool Valve
- Gearbox Main Components and Layout Diagrams
- Accumulator Pressure and Volume Testing
- Transmission Supply Pressure Measurements
- Transmission High-Pressure and Shifting Pressure Tests
- PTO, Differential Lock and Front Axle Clutch Solenoid Valve Testing
- Hydrostatic Loop Checks and Pressure Measurement Sheet
- Forward Speed Calibration
- Throttle Pedal Potentiometer and Armrest Lever Calibration
- Differential Lock and Four-Wheel Drive Automatic Disengagement Calibration
- High/Low Speed Range, Coupler and PTO Calibration
- Clutch Control Bleeding and Transmission Filling
- Dyna-VT Transmission Disassembly and Reassembly
- High-Pressure Relief Valve and Flushing Valve Removal and Refitting
- Clutch Control Disassembly and Reassembly
- ML260 Transmission Service Tools
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06. Rear Axle, Differential and Brakes
- HA260 Rear Axle General Information and Operating Principles
- Rear Axle Component Layout and Cross-Section Diagram
- Rear Axle and Transmission Error Codes
- HA260 Final Drive General Information
- Final Drive Component Layout and Identification
- Final Drive Removal and Refitting
- Final Drive Disassembly and Reassembly
- HA260 Differential Operating Principles and Diagrams
- Differential Component Layout
- Differential Lock Error Codes and Solenoid Valve Testing
- Differential Removal and Refitting
- Pinion Disassembly and Reassembly
- Tractor Braking System Operating Principles
- Brake Assembly and Component Identification
- Brake System Pressure Tests and Diagnostics
- Brake System Bleeding
- Brake Unit and High-Pressure Brake Valve Service
- Brake Control Removal and Refitting
- Brake Disc Removal and Refitting
- Brake Pedal Sensor Service
- ParkLock System Operating Principles
- ParkLock Error Codes and Diagnostics
- ParkLock Hydraulic Tests and Brake Bleeding
- ParkLock Unit Disassembly and Reassembly
- Hydraulic Trailer Brake Operating Principles
- Hydraulic Trailer Brake Components and Tests
- Hydraulic Trailer Brake Bleeding
- Trailer Brake Unit Disassembly and Reassembly
- Pneumatic Trailer Brake Operating Principles and Schematics
- Pneumatic Trailer Braking System Component Layouts
- Pneumatic Braking Tests and Bleeding
- Pneumatic Compressor, Pulleys and Air Tanks
- Pneumatic Pressure Relief Valve, Regulator and Control Valve
- Pneumatic Solenoid Valves and Selectors
- Auto-Hitch Operating Principles and Component Layout
- Auto-Hitch Lock, Tie Rod and Control Cable Adjustments
- Rear Wheels and Hubs
- Rear Wheel Track Width Adjustment
- Rear Wheel Tightening Torques
- Rear Axle, Brake and Differential Service Tools
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07. Power Take-Off (PTO)
- HA260 Rear PTO General Information
- Rear Power Take-Off Error Codes
- PTO Electrical and Hydraulic Circuit Diagrams
- HA260 and HA260F PTO Component Lists and Diagrams
- PTO Hydraulic Supply Pressure Testing
- PTO High-Pressure and Shifting Pressure Measurements
- PTO, Differential Lock and Front Axle Clutch Solenoid Valve Testing
- Hydrostatic Loop Checks
- High/Low Range, Coupler and Power Take-Off Calibration
- HA260 PTO Disassembly and Reassembly
- HA260F PTO Disassembly and Reassembly
- Rear PTO Service Tools
- Zuidberg Front Power Take-Off Operating Principles
- Front PTO Schematic and Hydraulic Diagrams
- Front PTO Component Identification
- Front PTO Hydraulic and Electrical Testing
- Front PTO Draining and Filter Replacement
- Front PTO Removal and Refitting
- Front PTO Shaft Removal and Refitting
- Front PTO Disassembly and Reassembly
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08. Front Axle and Steering
- DANA770 Front Axle General Information
- DANA Fixed and Suspended Front Axle Assemblies
- DANA Front Axle Identification, Dimensions and Specifications
- Front Axle Oil Level Checks and Tightening Torques
- Front Axle Troubleshooting
- Four-Wheel Drive and Suspended Front Axle Error Codes
- Front Axle Electrical and Hydraulic Circuit Diagrams
- Front Axle Component Layouts and Parts Lists
- Front Axle Accumulator Pressure and Volume Testing
- Suspended Front Axle Diagnostics and Calibration
- Fixed and Suspended Axle Tightening Torques and Preloads
- DANA Front Axle Service Tools
- Front Transmission Shaft Removal and Refitting
- Four-Wheel Drive Shaft Bearing Removal and Refitting
- Four-Wheel Drive Clutch Operating Principles
- 4WD Clutch Error Codes and Component Layout
- 4WD Clutch Hydraulic Pressure Testing
- 4WD Clutch and Transmission Calibration
- Four-Wheel Drive Clutch Disassembly and Reassembly
- Four-Wheel Drive Clutch Repair
- Steering Unit Operating Principles and Schematic Diagrams
- Steering Unit Component Identification
- Steering System Tests and Diagnostics
- Orbitrol Steering Unit Service
- Steering Column Service
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09. Hydraulic Systems
- Load-Sensing (LS) Hydraulic System General Information
- Hydraulic System Operating Principles and Circuit Diagrams
- LS System Component Layout
- Hydraulic Accumulator Pressure and Volume Testing
- LS Hydraulic Pump Operating Principles
- Hydraulic Pump Diagrams and Component Locations
- Hydraulic Pump Tests and Diagnostics
- LS Pump Removal and Refitting
- Auxiliary Hydraulic Spool Valve Operating Principles
- Armrest and Hydraulic Valve Error Codes
- Auxiliary Spool Valve Component Identification
- Auxiliary Hydraulic Valve Testing and Diagnostics
- Auxiliary Spool Valve Removal and Refitting
- Auxiliary Spool Valve Coupler Service
- Front Auxiliary Spool Valve Removal and Refitting
- Rear Linkage Hydraulic System Operating Principles
- Rear Linkage and Armrest Error Codes
- Rear Linkage Component Layout and Diagnostics
- Rear Linkage Adjustment Procedures
- Rear Linkage and Spool Valve Disassembly and Reassembly
- Front Linkage Hydraulic System Operating Principles
- Front Linkage Component Layout and Diagnostics
- Front Linkage Position Sensor Adjustment
- Front Linkage Spool Valve Service
- Front Linkage Ram and Folding Ram Service
- Front Linkage Sensor Disassembly and Reassembly
- Hydraulic Pump, Spool Valve and Linkage Service Tools
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10. Electrical System
- Electrical System General Information and Operating Principles
- Electrical Circuit Schematic Diagrams
- Lighting System Component Locations
- Fuse Box Operating Principles and Components
- 8600 Series Fuse Box Diagrams and Identification
- 8600 T4i Series Fuse Box Diagrams
- Battery Isolator and Fuse Board Service
- Alternator Circuit Diagrams and Component Layout
- Alternator Test Procedures and Component Checks
- Fan, Alternator and Air Conditioning Belt Replacement
- Alternator Removal and Refitting
- Battery Electrical Circuit Diagrams
- Starter Motor Operating Principles
- Starter Motor Electrical Diagrams and Component Layout
- Starter Motor Diagnostics
- Starter Removal and Refitting
- 8600 T4i Battery Isolator Operating Principles
- Battery Isolator Component Layout
- Electrical System Service Tools
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11. Electronics and Diagnostic Systems
- Automatic Air Conditioning Electronic Diagnostics
- Power Take-Off Electronic Function Diagnostics
- Engine Electronic Function Diagnostics
- Transmission Electronic Function Diagnostics
- ParkLock Electronic Function and Operation Flow Diagram
- Four-Wheel Drive Electronic Function Diagnostics
- Differential Lock Electronic Function Diagnostics
- Headlight Module Electronic Diagnostics
- Suspended Front Axle Electronic Diagnostics
- Suspended Cab Electronic Diagnostics
- Auxiliary Hydraulics Electronic Diagnostics
- Linkage Electronic Function Diagnostics
- Vistronic Fan Control Diagnostics
- SpeedSteer Electronic Diagnostics
- Isobus Electrical Diagrams
- Auto-Guide Error Codes
- Auto-Guide Electrical and Hydraulic Diagrams
- Telemetry System General Information
- Telemetry Operating Principles and Schematic Diagrams
- Telemetry Error Codes and Electrical Diagrams
- Telemetry Component Identification
- Telemetry Programming and Parameter Settings
- AGCOMMAND Aerial Access
- AM50 Telemetry Unit Access
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12. Cab and Equipment
- Standard Air Conditioning System Specifications
- Standard Air Conditioning Operating Principles
- Air Conditioning Electrical and Hydraulic Diagrams
- Air Conditioning Compressor and Component Layouts
- Standard Air Conditioning Tests and Diagnostics
- Air Conditioning Safety and General Maintenance
- Air Conditioning Drive Belt and Compressor Service
- System Draining, Leak Checks and Refilling
- Air Conditioning Pressure Checks
- Cab Roof Removal and Refitting
- Roof Trim, Evaporator, Heater Radiator and Fan Service
- Air Conditioning Compressor Removal and Reassembly
- Self-Regulating Air Conditioning System Operation
- Self-Regulating Fan Control, Defrosting and Recirculation
- Self-Regulating Air Conditioning Error Codes
- Self-Regulating Air Conditioning Electrical Tests
- Self-Regulating Air Conditioning Maintenance and Repairs
- Passive Hydraulic Cab Suspension Operating Principles
- Passive Hydraulic Suspension Error Codes and Schematics
- Passive Hydraulic Suspension Component Layout
- Passive Hydraulic Suspension Testing and Calibration
- Passive Hydraulic Suspension Unit and Ram Service
- Semi-Active Hydraulic Cab Suspension Operating Principles
- Semi-Active Hydraulic Suspension Error Codes and Diagrams
- Semi-Active Hydraulic Suspension Hydraulic Tests
- Semi-Active Hydraulic Suspension Adjustments and Repairs
- Passive Pneumatic Cab Suspension Operating Principles
- Passive Pneumatic Suspension Diagrams and Component Layout
- Pneumatic Suspension Tests and Leak Checks
- Pneumatic Suspension Bleeding Procedures
- Pneumatic Compressor, Tanks, Regulator and Shock Absorber Service
- Semi-Active Pneumatic Cab Suspension Operating Principles
- Semi-Active Pneumatic Suspension Error Codes and Diagnostics
- Semi-Active Pneumatic Suspension Adjustments and Repairs
- Reverse Station General Information
- Reverse Station Electrical and Hydraulic Diagrams
- Reverse Station Component Layout
- Reverse Station Brake Bleeding and Throttle Calibration
- Reverse Station Removal, Disassembly and Reassembly
- Cab and Air Conditioning Service Tools
- 13. Accessories
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14. Service Tools
- General Workshop Service Tools
- Sisu Tier 3 Engine Service Tools
- e3 SCR Technology Engine Service Tools
- ML260 Gearbox Service Tools
- HA260 Final Drive Service Tools
- HA260 Differential Service Tools
- Tractor Braking and ParkLock Service Tools
- Hydraulic Trailer Braking Service Tools
- HA260 Power Take-Off Service Tools
- DANA770 Front Axle Service Tools
- LS Auxiliary Spool Valve Service Tools
- LS Rear and Front Linkage Service Tools
- Alternator Service Tools
- Air Conditioning Service Tools
Emissions Tier and Configuration Reference
The engine and electrical sections distinguish Tier 3 from Tier 4i systems, while axle, braking and cab chapters identify different equipment arrangements. Check the relevant configuration before following a particular service procedure.
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