Overview
The Massey Ferguson 393, 396, 398 and 399 Tractor Workshop Service Manual provides technical reference information for servicing, maintaining and repairing tractors in the Massey Ferguson 300 Series. The documentation is organised by major mechanical, hydraulic and electrical systems, helping workshop technicians locate the appropriate specifications and service sections for tractor maintenance and repair.
Coverage includes tractor specifications, engine data, cooling, air and fuel systems, clutch servicing, manual and shuttle gearboxes, Multi Power and Speedshift transmissions, rear axle assemblies, differential locks, brakes and power take-off systems. Additional sections address two-wheel-drive and four-wheel-drive front axles, steering, lift and auxiliary hydraulics, drawbar and linkage equipment, electrical systems and air conditioning.
Safety: The manual includes a dedicated Introduction and Safety section. Review the applicable workshop precautions before servicing the transmission, power take-off, steering, hydraulic or other tractor assemblies.
Notice: The source is identified as an MF 300 Series Workshop Manual and covers multiple engine, gearbox, front axle and PTO configurations. The bookmark index does not individually identify the MF 393, 396, 398 and 399. Confirm the applicable tractor model and installed equipment before following a specific service section.
Table of Contents
Massey Ferguson 393, 396, 398, 399 Manual
- Introduction and Safety
- Tractor Specifications
- Splitting the Tractor
- Engine Data
- Cooling System
- Fuel and Air System
- Clutches
- Gearboxes
- 8-Speed Manual MK I Standard Gearbox
- 8-Speed Manual MK I Synchromesh Gearbox
- 6-Speed Manual Shuttle Gearbox
- 12-Speed Manual MK II Synchromesh Gearbox
- 12-Speed Multi Power MK II Gearbox
- Transfer Box and Drive Shaft
- 8-Speed Synchromesh Shuttle Gearbox
- 12-Speed Shuttle Gearbox
- Four-Wheel Drive Unit
- Creeper Gearbox
- 18-Speed Speedshift Gearbox
- Differential, Brakes and Rear Axle
- Rear Axle
- Brakes
- Crownwheel, Pinion and Differential Lock
- Wheels and Tyres
- Power Take-Off
- Single-Speed Power Take-Off
- Two-Speed Power Take-Off
- Independent Power Take-Off Clutch
- Shiftable Power Take-Off
- Single-Speed Power Take-Off – 1993 Onwards
- Front Axle
- Two-Wheel-Drive Front Axle – Three-Cylinder Tractors
- Two-Wheel-Drive Front Axle – Four- and Six-Cylinder Tractors
- Four-Wheel-Drive Front Axle
- Narrow Four-Wheel-Drive Front Axle
- AG Series Four-Wheel-Drive Front Axle
- Steering
- Hydraulics
- Lift Hydraulics
- Auxiliary Hydraulics
- Drawbar and Linkage
- Electrical System
- Air Conditioning
- Conversion Tables
- Index
Identifying the Correct Gearbox, Axle and PTO Configuration
The gearbox documentation distinguishes 8-speed and 12-speed manual transmissions, Synchromesh and shuttle gearboxes, Multi Power MK II, creeper and 18-speed Speedshift arrangements. A separate transfer box and drive shaft section is also included. Before servicing the drivetrain, identify the transmission installed on the tractor and consult the corresponding gearbox chapter.
The front axle documentation separates two-wheel-drive arrangements for three-cylinder and four- or six-cylinder tractors, alongside standard, narrow and AG Series four-wheel-drive axles. Power take-off information is divided into single-speed, two-speed, independent clutch and shiftable PTO systems, including a separate single-speed PTO section for 1993-onwards configurations.
Rear axle and hydraulic references include the differential, crownwheel and pinion, differential lock, braking components, lift hydraulics and auxiliary hydraulics. The drawbar and linkage, electrical and air conditioning chapters provide additional system-specific workshop references. Use the tractor’s model identification and fitted component configuration to select the relevant procedures.
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