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
MATERIALS/PARTS (Contd)
Gasket (Appendix D, Item 148)
All
Gasket (Appendix D, Item 149)
SPECIAL TOOLS
Gasket (Appendix D, Item 150)
Differential flange replacer
GAA grease (Appendix C, Item 14)
(Appendix B, Item 60)
Sealing compound (Appendix C, Item 42)
Sealing compound (Appendix C, Item 43)
TOOLS
Sealing compound (Appendix C, Item 44)
General mechanic's tool kit
REFERENCES (TM)
(Appendix B, Item 1)
Torque wrench, 3/8-in. dr.
TM 9-2320-260-20
(Appendix B, Item 4)
TM 9-2320-260-34 P-1
Torque wrench, 112-in. dr.
EQUIPMENT CONDITION
(Appendix B, Item 3)
Remove propeller shaft(s) (TM 9-2320-260-20).
Bearing remover/replacer
(Appendix B, Item 36)
MATERIALS/PARTS
Two cotter pins (Appendix D, Item 25)
Two seals (Appendix D, Item 430)
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.
