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