MASSEY FERGUSON 5400 - Removing the Left-Hand Flange and Differential Lock Assembly

Massey Ferguson 5400 - Issue 1.a
06E01.7
GPA20 differential
B . Removing the left-hand flange
and differential lock assembly
NOTE: It is possible to carry out servicing on the differ-
ential lock hydraulic assembly (10) by removing only
the left-hand trumpet housing.
1. Remove the left-hand trumpet housing (see
section 6).
2. Disconnect the supply pipe (2), unscrew the union
(39) and take out the pipe (40) (Fig. 3).
N
OTE: If access to the union (39) is difficult on trac-
tors fitted with 4-speed LSPTO, remove the
control (1) (Fig. 3).
3. Remove the brake piston (see section 6).
Special points
Purpose of studs (2) and (46)
-Stud (2) (Fig. 2):
• helps attach the left-hand side flange (9),
• it holds the lubricating pipe (47) of the drive pinion
(34).
N
OTE: To reach the nut (3), remove the auxiliary spool
valve support and work through the resulting opening.
N
OTE: If this operation has to be carried out on a tractor
fitted with 4-speed LSPTO, it is necessary to also
remove the hitch support and the top PTO cover
located at the rear of the tractor, the double pinion and
control fork.
- Stud (46) (Fig. 2):
• attaches the right-hand flange (25).
• supports the return pipe (53) of the hydraulic spool
valves (see section 9).
The two studs (2) and (46) are fitted in the housing with
a locking product (Loctite 242 or equivalent). The nuts
on either side are tightened like the other screws
holding the flanges, to a torque of 85 - 100 Nm.
Removal
4. Remove the flange (9), the locating ring (45), and if
necessary, the friction washer (11), mobile coupler
(7) and spring (6).
Fig. 3