MASSEY FERGUSON 5400 - Page 277

Massey Ferguson 5400 - Issue 1.a
06B02.7
GPA20 Heavy Duty Trumpet housings
Refitting
17. Clean the mating faces on the rear axle housing
and on the trumpet housing with a non-greasy
solvent.
18. Apply a bead of oil resistant silicone (Silicomet
type) to the inner edge of the centre housing
(Fig. 6).
19. Check that the disc (19) slides freely on the sun
gear (23) (Fig. 7)
20. Refit the locating pin (27), the sun gear (23) and the
brake disc (19).
21. Screw two diametrically opposed guide studs into
the centre housing.
22. Refit the brake plate (18) in the trumpet housing.
N
OTE: In order to hold the plate in place, apply a
small amount of miscible grease to the face of the
ring gear (22).
23. Couple the trumpet housing to the rear axle,
following the safety procedures used during its
removal.
N
OTE: Turn the shaft (2) to engage the sun gear
(23) in the pinion gears.
24. Clean the screws (20) and smear them with
Plastex, Hylomar or an equivalent gasket seal
paste.
25. Fit and tighten the screws (20) to a torque of 170 -
210 Nm.
26. Carry out operations 11 and 12 in reverse order.
27. Carry out operations 9 and 10 in reverse order.
28. Refit the cab attachment screws.
29. Refit the other removed parts.
30. Top up the oil level in the rear axle.
31. Refit the wheel. Tighten to a torque of 400 - 450
Nm.
32. Remove the axle stand.
33. Test the lift mechanism and braking circuit.
34. Check for tightness:
- between the trumpet and rear axle housing
- of the lift control valve feed pipe
- of brake lubricating pipes.
Fig. 6
Fig. 7