TM 9-2320-280-34
17-24. TURBINE SHAFT AND OVERDRIVE CARRIER ASSEMBLY REPAIR (4L80-E) (Cont'd)
f. Overdrive Carrier Measurement
1.
Set dial indicator to read pinion gear (1) end play.
2.
Lift pinion gear (1) and read movement from dial indicator. Normal end freeplay is 0.009-0.024 in.
(0.229-0.610 mm). If not, replace overdrive carrier assembly (6).
g. Overdrive Carrier Cleaning
Clean all components in accordance with para. 2-13.
h. Overdrive Carrier Inspection
1.
Inspect pinion gears (1) surfaces for scoring or burrs. Remove minor burrs. Replace overdrive
carrier assembly (6) if damaged.
2.
Inspect pinion gears (1) for damaged teeth and scored or damaged bearing bore. Replace overdrive
carrier assembly (6) if damaged.
3.
Inspect roller clutch assembly (3) for cracked, or broken rollers or cage, and scoring. Replace roller
clutch assembly (3) if damaged.
4.
Inspect bearing assembly (4) for damage. Replace if damaged.
5.
Inspect carrier (6) for cracks, breaks, or scoring on finished thrust surfaces. Remove minor scoring.
Replace overdrive carrier assembly (6) if damaged.
6.
Inspect pinion pins (5) and pinion pin retainer (2) for looseness and drainage. Replace overdrive
carrier assembly (6) if loose or damaged.
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