MASSEY FERGUSON 5400 - Page 218

Massey Ferguson 5400 - Issue 1.a
05G02.10
GBA20 output shaft with Power Shuttle
Adjusting J3 clearance (Fig. 7)
29. Put the feeler pin of a dial gauge against the end of
shaft (44) (Fig. 8 or Fig. 9).
30. Push the shaft, turning it alternately from right to
left to correctly seat the cones in the cups.
31. Reset the dial gauge to zero.
32. Repeat operation 30 this time pulling.
33. If the axial freeplay is greater tha 0.05 mm, set a
definitive thickness of circlips (49), qui to be fitted
later at operation 42, to obtain
J3 = -0.05 to +0.05 mm.
34. Take off circlip (45).
35. Remove laminated shim (43) and shims (42).
36. Remove screws (41) and stop plate (46).
37. Remove:
- the cup (48);
- the bearing cones (40) (39), pairing them with
their cups;
- the cup (37);
- the provisional circlip (49) fitted at operation 25;
- The shaft (44).
Assembling the pinions and the shaft
38. On a workbench, preassemble 3rd drive pinion (29)
with synchromesh rings (21) and 3rd gear, bear-
ings (79) (81), washers (27) (32) and synchromesh
(31).
39. If removed, put the Tortoise pinion (36) with its
synchromesh ring (22) in the housing.
I
MPORTANT: If ring (35) of the Portoise pinion (36) is
damaged, replace the pinion assembly (the ring is
rebored after force-fitting).
Refit the input unit (see chapter 5).
40. In the housing, install:
- 3rd driving pinion (29) fitted with needle roller
bearings (28) (30) (recess "R" turned towards the
3rd - 4th synchromesh (Fig. 10);
- the synchromesh (31).
R
EMINDER: Needle bearings (28) (30) are
force-fitted and separated by spacer (80).
41. Fit output shaft (44) holding the gear train
assembly (Fig. 11).
Fig. 7
Fig. 8
Fig. 9