TM-9-2320-260-34-1
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME 1 OF 2
JULY 1994
TM-9-2320-260-34-1 - Page 610 of 657
TM 9-2320-260-34-1
10-9. DIFFERENTIAL OIL SEALS REPLACEMENT
THIS TASK COVERS:
a. Front Seal Removal
c.
Front Seal Installation
b. Rear Seal Removal
d. Rear Seal Installation
INITIAL SETUP
APPLICABLE MODELS
All
SPECIAL TOOLS
Differential flange replacer
(Appendix B, Item 60)
TOOLS
General mechanic’s tool kit
(Appendix B, Item 1)
Torque wrench, 3/8-in. dr.
(Appendix B, Item 4)
Torque wrench, 112-in. dr.
(Appendix B, Item 3)
Bearing remover/replacer
(Appendix B, Item 36)
MATERIALS/PARTS
Two cotter pins (Appendix D, Item 25)
Two seals (Appendix D, Item 430)
MATERIALS/PARTS (Contd)
Gasket (Appendix D, Item 148)
Gasket (Appendix D, Item 149)
Gasket (Appendix D, Item 150)
GAA grease (Appendix C, Item 14)
Sealing compound (Appendix C, Item 42)
Sealing compound (Appendix C, Item 43)
Sealing compound (Appendix C, Item 44)
REFERENCES (TM)
TM 9-2320-260-20
TM 9-2320-260-34 P-1
EQUIPMENT CONDITION
Remove propeller shaft(s) (TM 9-2320-260-20).
a. Front Seal Removal
1. Remove cotter pin (1), nut (2), and companion flange (3) from mainshaft (5) of bearing retainer (22).
Discard cotter pin (1).
2. Remove eight screws (20), washers (21), bearing cover (19), and gasket (16) from differential carrier
housing (15). Discard gasket (16).
3. Remove seal (17) and gasket (18) from bearing cover (19). Discard seal (17) and gasket (18).
b. Rear Seal Removal
1.
Remove cotter pin (11), nut (12), and companion flange (10) from main shaft (5). Discard cotter
pin (11).
2. Remove six screws (13), washers (14), cap (9), and gasket (7) from differential carrier housing (15).
Discard gasket (7). Do not remove spacer (6) from rear roller bearing (4).
3. Remove seal (8) from cap (9). Discard seal (8).
c. Front Seal Installation
1.
Install new gasket (18) in bearing cover (19).
2. Coat sealing surface of new seal (17) with GAA grease and outside diameter of new seal (17) with
sealing compound.
3. Using bearing replacer, install seal (17) in bearing cover (19).
4. Coat new gasket (16) with sealing compound and aline to bearing retainer (22). Ensure gasket (16)
holes aline to bearing retainer (22) holes and bearing retainer (22) slots are not blocked. Coat outer
surface of gasket (16) with sealing compound.
10-52
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