TM 9-2320-387-24-2
I
28- 18. OIL PUMP ASSEMBLY REPAIR
This task covers:
a. Disassembly
b. Cleaning
c. Inspection
d. Assembly
INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Maintenance and repair shop equipment:
automotive (Appendix B, Item 21
Special Tools
Output shaft seal installer
(Appendix B, Item 901
Oil pump seal installer (Appendix B, Item 611
Materials/Parts
Two seals (Appendix G, Item 3991
Seal (Appendix G, Item 3971
Oil seal (Appendix G, Item 4111
Materials/Parts
(Cont’d)
Petrolatum
(Appendix
C, Item 52)
Transmission fluid (Appendix C, Item 371
Manual References
TM 9-2320-387-24P
Equipment Condition
Transmission disassembled into subassemblies
(para. 28-31.
Maintenance LeveI
General support
NOTE
Work area should be well-ventilated, clean, and free from blowing dirt and dust.
71
1.
Remove oil pump seal (32) from pump body (11. Discard oil pump seal (32).
NOTE
2.
3.
Before removal, mark pump body and cover for assembly.
Remove five screws (51 from cover (41 and pump body (11. Separate pump body (1) and cover (4).
Remove seal (21 from pump body (11. Discard seal (21.
NOTE
4.
Before removal, mark gear faces for assembly.
Remove drive gear (3) and driven gear (6) from pump body (11.
CAUTION
5.
6.
7.
8.
9.
Pressure regulator valve is spring-loaded.
Remove snapring (191 from cover (41 and release tension.
Remove bushing (18), reverse boost valve (171, spring retainer (161, two springs (151, pressure
regulator valve (141, spring pin (111, and plug (12) from cover (41.
Remove spring pin (251, plug (281, spring (271, and converter limit valve (26) from cover (41.
Remove spring retainer (71, spring (81, and converter enable valve (91 from cover (41.
Remove snapring (201, plug (211, converter clutch valve (221, spring (231, spring pin (241, and
plug (10) from cover (41.
10.
Remove screw (31) and vent shield (30) from cover (4).
11.
Remove two seal rings (291 from cover (41. Discard seal rings (291.
12.
Remove front selective thrust washer (131 from cover (41.
Clean all components in accordance with para. 2-14.
28-66
