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 888 of 1258
TM 9-2320-280-34
1 7 - 1 0 4
Change 1
1 7 - 2 3 . F O U RTH CLUTCH ASSEMBLY REPAIR (4L80-E)
Materials/Parts (Cont’d)
Petrolatum (Appendix B, Item 38)
Transmission fluid (Appendix B, Item 24)
Manual References
TM 9-2320-280-24P
Equipment Condition
Transmission disassembled into subassemblies
(para. 17-14).
Maintenance Level
General support
This task covers:
a.
Disassembly
d.
Assembly
b.
Cleaning
e.
End Play Measurement
c.
Inspection
1.
Remove snapring (1), backing plate (11), four clutch plates (9), and clutch plate assemblies (10) from
clutch housing (4).
2.
Remove snapring (8) and spring and retainer assembly (7) from clutch housing (4).
3.
Remove piston (3) from clutch housing (4).
4.
Remove inner seal (2) from piston (3) and outer seal (6) from housing (4). Discard seals (2) and (6).
a. Disassembly
1.
Inspect piston (3), backing plate (11), and clutch housing (4) for cracks, breaks, and damaged seal
ring grooves. Replace any that are cracked, broken, or damaged.
2.
Inspect plug (5). If missing, replace clutch housing (4).
c. Inspection
CAUTION
All transmission parts must be lubricated with clean transmission fluid
(Dexron
®
III) before assembly. Foreign material will cause transmission
damage.
1.
Install inner seal (2) on piston (3), with lip facing toward spring and retainer assembly (7) side.
2.
Install outer seal (6) on housing (4), with lip facing away from spring and retainer assembly (7) side.
3.
Place inner seal protector J38731-1 on clutch housing (4).
4.
Place outer seal protector J38731-2 on piston (3).
5.
Position piston (3) on base J38731-3 with snapring groove of piston (3) up.
6.
Place housing (4) over piston (3) while holding inner seal protector in position.
d. Assembly
b. Cleaning
Clean all components in accordance with para. 2-13.
INITIAL SETUP:
Applicable Models
M997A2, M1025A2, M1035A2,
M1043A2, M1045A2, M1097A2, M1123
Tools
General mechanic’s tool kit:
automotive (Appendix G, Item 1)
Special Tools
Seal protectors (Appendix G, Item 46)
Materials/Parts
Inner seal (Appendix E, Item 163)
Outer seal (Appendix E, Item 166)
NOT E
Work area should be well-ventilated, clean, and free from
blowing dirt and dust.
Back to Top
