TM-9-2320-280-34

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

JANUARY 1996
TM-9-2320-280-34

  TM-9-2320-280-34 - Page 800 of 1258

TM 9-2320-280-34
17-7
.
FORWARD CLUTCH AND TURBINE SHAFT REPAIR (3L80)
This task covers:
a.
Disassembly
c.
Inspection
b
Cleaning
d.
Assembly
INITIAL SETUP:
Applicable Models
Materials/Parts (Cont'd)
All vehicles except: M997A2, M1025A2,
Outer piston seal (Appendix E, Item 130)
M1035A2, M1043A2, M1045A2, M1097A2
Petrolatum (Appendix B, Item 38)
Transmission fluid (Appendix B, Item 23)
Tools
Manual References
General mechanic's tool kit:
TM 9-2320-280-24P
automotive (Appendix G, Item 1)
Special Tools
Equipment Condition
Clutch spring compressor
Transmission disassembled into subassemblies
(Appendix G, Item 35)
(para.
17-3).
Clutch spring compressor adapter
(Appendix G.
Item 36)
General Safety Instructions
Air pressure must not exceed 50 psi (345 kPa)
Materials/Parts
when air checking clutch piston.
Five composition clutch plates
(Appendix E, Item 134)
Maintenance Level
Inner piston seal (Appendix E, Item 127)
General support
NOTE
Work area should be well ventilated, clean, and free from blowing dirt and dust.
a
.
Disassembly
1.
Remove snapring (1), direct clutch hub (2), forward clutch hub (3), thrust washer (4), five
composition clutch plates (7), and steel clutch plates (5) from forward clutch housing (6).
Discard
composition clutch plates (7).
2.
Place clutch housing (6) in press.
Using clutch spring compressor and clutch spring compressor
adapter, compress spring retainer (9) and remove snapring (8) and spring retainer (9) from clutch
housing (6).
NOTE
Keep forward clutch release springs separate from direct clutch release springs.
3.
Remove spring retainer (9), sixteen release springs (10), and clutch piston (12) from clutch housing (6).
4.
Remove inner piston seal (13) and outer piston seal (14) from clutch piston (6).
Discard seals (13).
5.
Remove clutch piston apply ring (11) from clutch piston (12).
b
.
Cleaning
Clean all forward clutch and turbine shaft components in accordance with para.
2-13.
c
.
Inspection
NOTE
For general inspection instructions, refer to para.
2-14.
1.
Inspect five steel clutch plates (5) for signs of burning, scoring, or cracks.
Replace any that are
burnt, scored, or cracked.
17-22


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