MASSEY FERGUSON 5400 - Page 378

Massey Ferguson 5400 - Issue 1.a
07B01.10
Intermediate shaft - Driving pinions - GPA20 brake
Reassembly
28. Check and clean all components. Replace any
defective parts.
29. Place the deflector (15) on pinion (13), and press-fit
the bearing cone (7) fully home into the shoulder
(Fig. 7). Lubricate the cone bearing (4) and place it
in the bearing cup (3).
N
OTE: If the bearing cup (3) has been replaced, refit
the 540 / 1000 rpm pinions (see chapter 7). Top up
the oil level in the rear axle.
30. Extract the piston (9) through the cover (10).
31. Remove the shims (11) and the O'ring (12) to
prepare for the shimming operation.
32. Assemble piston (9) and bearing cup (8) in the
cover (10).
33. Lubricate the bearing cup and the bearing cone (7).
34. Assemble the pinion (13) inside the housing.
N
OTE: In order to ensure lubrication of the cone (7),
a pin (36) fixed by a set screw (22) is fitted at the
location of the pin (23) in the 4-speed LSPTO.
The oil tightness of the pin is ensured by the seal
(37), the central channel being used to lubricate the
front bearing of the drive pinion.
35. Refit the cover. Tighten the screws to a torque of
130 -170 Nm.
36. Carry out the J/P shimming (Fig. 8) to obtain a
preloading of 0.05 with a clearance of 0.05.
37. Place the feeler pin at the end of the pinion (13)
(Fig. 9).
38. Pull on the pinion while turning it alternatively left
and right in order to compress the deflector (15)
and correctly seat the bearing cone (7) in the
bearing cup (8).
39. Reset the dial gauge to zero.
40. Push on the pinion while turning it alternatively left
and right in order to seat the bearing cone (4)
correctly in the bearing cup (3).
41. According to the value read on the dial gauge,
select the thickness of shims in order to obtain
J/P.
42. Remove the cover (10), take out the bearing cup (8)
and the piston (9).
43. Place the shims (11) selected in operation 41 in the
cover (10).
Fig. 7
Fig. 8
Fig. 9