MASSEY FERGUSON 6400 Workshop Service Manual page 188

Splitting - GBA10 gearbox / Centre housing
Servicing on the left-hand side of the
tractor
12. Mark then disconnect:
- the hose on the steering ram,
- the harness of the fuel gauge on the tank,
- the fuel feed and return hoses on the engine
(block ports),
- the vent hose on the tank.
13. Drain the tank (if necessary) and remove it.
14. Disconnect the lubricating pipe located at the front
left-hand side of the gearbox.
Servicing under the cab
15. Mark, toe-in and disconnect the heating hoses,
immediately blocking the ports.
Servicing the engine
16. Disconnect the connector of the main engine
wiring harness.
17. Separate the compressor, the condenser and the
filter from their respective holders, and remove
them carefully, without breaking the circuit.
Preparing for disassembling
18. Cancel the front axle oscillation by sliding an suit-
able chock in at each side of the support (1) (Fig. 2).
19. Chock the rear wheels.
20. Remove the two lower screws (6) (M16) from the
4WD cover opening (Fig. 3).
21. Place fixed stands (Fig. 4):
- at the front of the centre housing.
- to the rear of the hitch hook.
22. Position a mobile stand at the back of the gearbox
(Fig. 4).
23. Separate the cab from the supports on the front
right- and left-hand sides (see chapter 12).
24. Gently lift it using two straps fitted to the lateral
handles.
25. Place a block temporarily between the cab and the
front supports.
Disassembly
26. Remove the remaining screws and nuts fixing the
gearbox to the centre housing (Fig. 3). Mark their
lengths and positionings.
02C02.4
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H
Dimensions of the screws and nuts
Screw
- M16 x 35 mm
- M16 x 50 mm
- M16 x 60 mm
- M16 x 70 mm
Nuts
- M16 x 1.5
Massey Ferguson 6400 - Issue 1
Fig. 2