TM-9-2320-280-34
TRUCK, UTILITY: M998 SERIES
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
JANUARY 1996
TM-9-2320-280-34 - Page 501 of 1258
9-3.
DIFFERENTIAL OUTPUT SHAFT SEAL REPLACEMENT
INITIAL SETUP:
To o l s
____
General mechanic's tool kit:
automotive (Appendix G, Item 1)
Special To o l s
__________
Axle shaft and seal installer
(Appendix G, Item 79)
M a t e r i a l s / P a rt s
_____________
Seal washer (Appendix E, Item 198)
Locknut (Appendix E, Item 46)
Sealing compound (Appendix B, Item 50)
Manual Refere n c e s
_______________
TM 9-2320-280-24P
Equipment Condition
_________________
Service brake rotors removed (TM 9-2320-280-20).
Maintenance Level
_______________
Direct support
This task covers:
a.
Removal
b.
Installation
NOTE
New configuration side mounting bracket allows for output shaft
seal replacement without bracket removal. Inspect bracket to
determine output shaft seal clearance. If clearance exists, perform
steps 2 through 4. If clearance does not exist, perform steps 1
through 4.
1.
Remove old configuration side mounting bracket (9) (para. 12-16).
2.
Remove locknut (5), seal washer (4), and output flange (3) from output shaft (2). Discard seal
washer (4), and locknut (5).
3.
Remove two capscrews (7) and brake adapter (6) from differential (1).
4.
Remove output shaft seal (8) from differential (1).
NOT E
New configuration side mounting bracket allows for output shaft
seal replace-ment without bracket removal. If side mounting
bracket was not removed, perform steps 2 through 4. If bracket was
removed, perform steps 1 through 4.
1.
Install new configuration side mounting bracket (9) (para. 12-16).
2.
Using axle shaft and seal installer, install output shaft seal (8) in differential (1).
CAUTION
Apply a liberal amount of thread sealing compound to the tapped holes
of differential. To allow adequate coating of threads, install capscrews
shortly after applying thread sealing compound. Failure to do this
could allow capscrews to loosen and cause damage to differential.
3.
Apply sealing compound to tapped holes of differential (1) and install brake adapter (6) on
differential (1) with two capscrews (7). Tighten capscrews (7) to 110-140 lb-ft (149-190 N
•
m).
4.
Install output flange (3), seal washer (4), and locknut (5) on output shaft (2). Tighten locknut (5) to
170 lb-ft (231 N
•
m).
b. Installation
a. Removal
TM 9-2320-280-34
9 - 2
Change 1
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