Massey Ferguson 5400 - Issue 1.a
06E01.8
GPA20 differential
C . Disassembling and reassembling
the differential lock assembly
Disassembly
5. Take out cup (14), deflector (13) and shim (49) (if
fitted).
N
OTE: Carefully note the assembly direction of the
deflector and the location of the shim (49).
6. Take off circlip (4).
7. Drive out the piston (5) using a compressed air jet
(Fig. 4).
8. Take off the O'rings (3) (8) (1).
9. Unscrew finger (12) (if necessary).
Reassembly
10. Check the components and replace any found to
be defective.
11. Clean finger (12), smear it with Loctite 542, then fit
it and tighten it on flange (9).
12. Smear the O'rings (3) (8) with miscible grease
(Amber technical or equivalent), and place them
correctly at the end of their respective grooves.
13. Using a plastic hammer, insert the piston (5) into
the flange (9) (Fig. 5) while respecting the location
of the finger (12).
14. Fit circlip (4), shim (49) (if necessary) (Fig. 2), and
deflector (13), respecting its assembly direction,
and cup (14) (Fig. 6).
I
MPORTANT: The shim (49) (if used) must be placed
between flange (9) and deflector (13).
Fig. 4
Fig. 5
Fig. 6