28-9. CENTER SUPPORT REPAIR
This task covers:
a. Disassembly
c. Inspection
b. Cleaning
d. Assembly
NOTE
Work area should be well-ventilated, clean, and free from blowing dirt and dust.
1.
Remove four oil seal rings (1) from center support (2). Discard oil seal rings (1).
2.
Using adapter and clutch spring compressor J 23327, compress spring and retainer (10) and remove
snapring (11) from center support (2).
3.
Remove spring and retainer (10), releasing springs (9), and remove clutch piston (6) from
center support (2).
4.
Remove inner piston seal (7) and outer piston seal (8) from clutch piston (6). Discard piston seals (7)
and (8).
NOTE
Perform step 5 for 1997-1998 transmissions only.
5.
Remove oil cooler fitting seal (8.1) from center support (2).
Clean all center support components in accordance with para. 2-14.
NOTE
For general inspection instructions, refer to para. 2-15.
1.
Inspect roller clutch inner race (3) for damage. Replace center support (2) if damaged.
2.
Inspect oil ring grooves (4) in center support (2) for roughness or damage. Replace center
support (2) if damaged.
3.
Inspect center support (2) for damage. Replace if damaged.
c. Inspection
b. Cleaning
a. Disassembly
INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Maintenance and repair shop equipment:
automotive (Appendix B, Item 2)
Special Tools
Driver handle (Appendix B, Item 60)
Bushing service set (Appendix B, Item 76)
Adapter (Appendix B, Item 67)
Clutch compressor spring adapter
(Appendix B, Item 69)
Center support thread reamer
(Appendix B, Item 73.1)
Materials/Parts
Inner piston seal (Appendix G, Item 304)
Outer piston seal (Appendix G, Item 307)
Materials/Parts (Cont’d)
Four oil seal rings (Appendix G, Item 415)
Transmission fluid (Appendix C, Item 37)
Manual References
TM 9-2320-387-24P
Equipment Condition
Transmission disassembled into subassemblies
(para. 28-3).
General Safety Instructions
Air pressure must not exceed 15 psi (103 kPa)
when air-checking clutch piston.
Maintenance Level
General support
TM 9-2320-387-24-2
28-32
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