4-69
ENG
TRANSMISSION
TIP
Calculate the coupling surface-to-bearing
clearance by subtracting crown-to-bearing
clearance from crown-to-coupling sur-
face clearance .
3. Install:
•
Required quantity of shims
SELECTING THE FINAL SHAFT CIRCLIP
WASHER
1. Install:
•
Circlip
TIP
Coupling surface-to-bearing clearance can be
derived from the mission case (as illustrated).
2. Measure:
•
Drive pinion-to-circlip clearance
(with a thckness gauge)
= pitch point-to-back clearance
(specified as 43.4 mm or 1.709 in)
= coupling surface-to-bearing
clearance
b
c
d
d
e
e