MASSEY FERGUSON 5400 - Adjusting and Checking the Backlash

Massey Ferguson 5400 - Issue 1.a
06E01.22
GPA20 differential
K . Adjusting and checking the back-
lash
Reminder
- The backlash between the ring gear and drive pinion
ensures reliability of the bevel gear and the correct
operation of the assembly.
- This clearance must be checked or adjusted after:
• adjusting the bevel gear distance
• shimming the differential unit.
Preparation
103. Remove the differential assembly (see § E).
104. Using a standard reversible flange extractor,
remove bearing cup (27) (Fig. 31).
Pre-adjustment
105. Prepare a thickness of shims (38) of 0.30 mm.
N
OTE:
- Do not take into consideration the DC (ring gear
offset, e.g.: -0.20) embossed on the external diam-
eter of the ring gear after the pairing number
(Fig. 31).
- The pre-adjustment can be followed by an adjust-
ment, if the backlash is incorrect during the final
check.
106. Place the previously prepared shim(s) in the cavity
of half housing (29). Lubricate and insert cup (27)
(Fig. 31).
107. Refit and shim the differential assembly unit (see §
J).
Fig. 31