Overview
The Massey Ferguson 1635 and 1643 Compact Tractor Workshop Service Manual provides detailed technical information for maintaining, troubleshooting and repairing these compact tractors. It includes engine service specifications, component inspection, disassembly and reassembly procedures, transmission servicing, hydraulic diagrams and electrical system references.
Coverage includes the E3CG three-cylinder and E4CG four-cylinder diesel engines, clutch assemblies, Power Shuttle, Synchro Shuttle and hydrostatic transmission configurations, front and rear axles, brakes and four-wheel-drive components. Additional chapters address hydraulic controls, power take-off equipment, electrical wiring, hydrostatic steering, cab components and air conditioning maintenance.
Safety: The engine chapters include service precautions and inspection requirements, while the air conditioning section contains safety instructions for refrigerant charging. Review the relevant procedures before dismantling engine components, servicing hydraulic systems or carrying out air conditioning repairs.
Table of Contents
Massey Ferguson 1635, 1643 Manual
-
1. General Information
- General
- Specifications and Capacities
- Disassembly
- Metric Torque Chart
- Conversion Table
-
2A. Engine E3CG (Three Cylinder)
- General Information
- Specifications
- Service Standards
- Engine Components
- Lubrication System
- Cooling System
- Fuel System
- Electrical System
- Crankcase Breather Assembly
-
2B. Engine E4CG (Four Cylinder)
- Cooling System
- Fuel System
- Air System
- General Information and Specifications
- Service Standards E4CG
- General Service Standards
- Disassembly and Assembly
- Lubrication
- Coolant System
- Fuel Injection System
- Alternator
- Glow Plugs
- Tachometer
- Starter
-
3. Major Components
- Operation Chart
- Service Access
- Removal of Front Axle
- Separation of the Engine from the Front Transmission Housing
- Engine Removal
- Separation of Bell Housing from the Front Transmission Housing – HST Only
- Separation of Front Transmission Case from Rear Transmission Case
- Removal of Lift Cylinder Case
- Separation of Rear Axle from Rear Transmission Case
- Platform
- Cab
- Fuel Tank
- Removal of Radiator
- Chassis Components
-
4. Clutch
- Construction
- Release Bearing
- Clutch Cross Shaft
- Clutch Housing Plug
- Troubleshooting
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5. Transmission
- Transmission
- Power Shuttle
- Synchro Shuttle
- Hydrostatic Transmission
- Input Gears
- Rear PTO
- Mid PTO
- 4WD Gears
-
6. Hydrostatic Transmission
- Hydrostatic Unit
- Operation of Hydrostat Unit
- Disassembly, Inspection and Assembly
- Troubleshooting
- HST Linkage Mechanism
-
7. Rear Axle and Brakes
- General Information
- Assembly
- Brake
- Differential Lock
- Rear Axle Differential Lock and Brake Disassembly
-
8. Front Axle
- General Description
- Front Axle Construction
- Specifications
- Front Wheel Drive Shaft
- Front Differential
- Final Drive – Wheel
- Wheel Shaft Seal or Cover
- Front Axle Center Section
- Oil Seal on Front Axle Bracket
- Final Drive Case
- Front Wheel Alignment
- Wheel Spacing
- Steering Free-Play
- Troubleshooting
-
9. Hydraulic System
- Hydraulic Circuit
- Specifications
- General Service Procedures
- Major Components
- Valves
- Hydraulic Control Linkage
- Three-Point Lift Linkage
- Troubleshooting
-
10. Electrical
- Wire Diagram and Color Chart
- Solenoid Valves
- Instrument Panel
- Switches and Relays
- Power Shuttle Controls
- Power Shuttle Valve
- Electrical Wiring Foldouts – Synchro Shuttle
- Electrical Wiring Foldouts – Power Shuttle
- Electrical Wiring Foldouts – Hydrostatic
- Electrical Wiring Foldouts – Cab
-
11. Hydrostatic Steering
- General Information
- Troubleshooting
-
12. Cab and Air Conditioning
- Cab and Air Conditioner
- Roof
- Door
- Product Overview
- Major Components
- Structure, Operation and Control
- Operation and Control of Air Conditioner
- Check and Maintenance
- Maintenance
- Troubleshooting
Engine, Transmission and Service Specifications
The engine documentation separates the E3CG three-cylinder and E4CG four-cylinder designs, with individual specifications, service standards and component repair procedures. The transmission chapters distinguish Power Shuttle, Synchro Shuttle and hydrostatic configurations, including specific hydraulic circuits, clutch systems, gear assemblies and control mechanisms. Identify the engine and transmission fitted to the tractor before selecting the applicable maintenance instructions.
The hydrostatic transmission section provides operating information, inspection and reassembly procedures, troubleshooting and linkage adjustments. Electrical chapters include model-specific wiring diagrams for MF 1635 and MF 1643 configurations, while the hydraulic system material covers pumps, valves, auxiliary circuits, loader controls and three-point linkage servicing.
Technical Specifications Extract
The following figures are retained from the supplied description. The measured component is not identified, and the first metric range requires confirmation against the original manual.
| Specification |
Value |
| Standard Value |
0.08 – 0.003 mm (0.0004 – 0.002 in) or less |
| Ground Down Limit |
0.4 mm (0.016 in) |
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