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 802 of 1258
TM 9-2320-280-34
17.7.
FORWARD CLUTCH AND TURBINE SHAFT REPAIR (3L80) (Cont ’d)
d.
Assembly
CAUTION
All transmission parts must be lubricated with clean transmission
fluid before assembly. Foreign material will cause transmission
damage.
NOTE
For general assembly instructions, refer to para. 2-16.
1.
Install clutch piston apply ring (3) in clutch piston (5).
2.
Install inner piston seal (6) and outer piston seal (7) on clutch piston (5). Ensure l
ips on piston
seals (6) and (7) face away from spring guides (4).
NOTE
It may be necessary to use 0.015 in. (0.381 mm) feeler gauge to
start inner and outer clutch piston seals into clutch housing.
3.
Install clutch piston (5) in clutch housing (8).
4.
Install sixteen release springs (2) and spring retainer (1) on clutch piston (5).
5.
Place clutch housing (8) in press.
6.
Using clutch spring compressor and clutch spring compressor adapter, compress spring retainer (1).
7.
Install snapring (9) securing spring retainer (1) to clutch housing (8).
8.
Install forward clutch hub thrust washer (13) on forward clutch hub (12) and retain with
petrolatum.
9.
Install clutch hub (12) in clutch housing (8). .
10.
Install five steel clutch plates (14) and five composition clutch plates (15) in clutch housing (8). Start
with steel clutch plate (14) then alternate composition clutch plates (15) and steel clutch plates (14).
11.
Install direct clutch hub (11) in clutch housing (8) with snapring (10).
12.
Install forward clutch housing (8) on oil pump (17).
WARNING
Air pressure must not exceed 50 psi (345 kPa) when air checking
clutch piston, or injury to personnel or damage to equipment may
result.
NOTE
Direct clutch hub must move up and down freely when air
pressure is applied.
13.
Apply air pressure to forward clutch oil passage (16) to check operation of clutch piston.
17-24
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