TB 9-2320-335-13&P
21-4. PINION SEAL REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Tools
Manual References
General mechanic's tool kit:
TM 9-2320-387-24P
automotive (Appendix B, Item 1)
Equipment Condition
Maintenance and repair shop equipment:
Service brake rotors removed (para. 7-12.1).
automotive (Appendix B, Item 2)
Maintenance Level
Special Tools
Direct support
Yoke seal installer
(Appendix B, Item 82)
NOTE
The replacement procedure for pinion seals is basically the same
for front and rear differential. This procedure covers the rear
differential pinion seal.
a. Removal
1.
Remove four capscrews (7), two straps (6), and rear propeller shaft (1) from pinion flange (3).
2.
measurement.
3.
Count and record number of exposed threads on end of pinion (4) and mark locknut (2) and
pinion (4) for assembly.
4.
Remove locknut (2) and pinion flange (3) from pinion (4).
5.
Remove pinion seal (5) from pinion (4).
b. Installation
1.
Using seal installer, install pinion seal (5) on pinion (4).
2.
Install pinion flange (3) on pinion (4) with locknut (2).
3.
Tighten locknut (2) to original position.
4.
Tighten locknut (2) in small increments, until torque required to rotate pinion (4) exceeds original
measurement by 2 lb-in. (0.2 Nm).
5.
Install rear propeller shaft (1) on pinion flange (3) with two straps (6) and four capscrews (7).
Tighten capscrews (7) to 60 lb-ft (81 Nm).
21-6