Massey Ferguson 5400 - Issue 1.a
08E01.10
GPA20 multidisc 4WD clutch
38. Adjusting J1 clearance (Fig. 9)
Using a press and suitable fixture (Fig. 6) apply a
load of 2000 daN to fully compress the Belleville
washers (35) (34).
Fit the circlip (39). Use a set of shims to increase
the distance X between the cover (38) and circlip
(39). Select the shim(s) (41) to obtain clearance
J1 = 0.9 to 1.1 mm.
39. Remove circlip (39).
40. Position the shim(s) chosen at operation 38
between the cover and circlip (splined shim on the
circlip side).
41. Refit the circlip.
42. Lubricate and fit the O’rings (32) (29) on the cover
(30) and refit the latter.
43. Fit the circlip (31).
44. Fit the clutch assembly (16) on the bell gear (15).
N
OTE: The ring (43) is force fitted in the bell gear
(15) and then rebored.
F . Refitting the clutch assembly
Tractor with no creeper unit
45. Refit the pinion (7) (if removed).
46. Position the circlip (6).
47. Refit the link shaft and coupling sleeves. Carry out
operations 11 and 12 in reverse order. Replace the
double pins.
Tractors with a creeper unit
48. Refit the pinion (7) (if removed).
49. Position the circlip (6).
50. See chapter 5.
51. Refit the right-hand hydraulic cover (see chapter 9).
52. Fit the cup (13) (if removed).
53. Fit the ring (11) with a locally made drift (see § G),
so that the ring is positioned 4 to 5 mm short of the
cup mating face (13) (Fig. 10). Move the ring until
one of its holes opens into the clutch supply
channel in the housing.
54. Fit the seal (24) in the cap (22).
Fig. 9
Fig. 10