TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 17-19. GEAR UNIT AND OUTPUT ASSEMBLIES REPAIR (4L80-E)(Cont’d) 17-86 Change 1 c. Inspection NOTE For general inspection instructions, refer to para. 2-14. 1. Inspect output carrier (2) for damage. Replace if damaged. 2. Inspect output carrier pinion gears (1) for damage, rough bearings, or excessive end play. Using feeler gauge, measure pinion gear end play; end play should not exceed 0.024 in. (0.61 mm). If any of these conditions exist, replace output carrier (2). 3. Inspect band surface (4) on reaction drum (3) for burning, scoring, or galling. Replace if burnt, scored, or pitted. 4. Inspect reaction carrier bushing (5). Replace reaction drum (3) if bushing (5) is damaged. 5. Inspect reaction carrier pinion gear (6) for damage, rough bearings, or excessive end play. Using feeler gauge, measure pinion gear end play; end play should not exceed 0.024 in. (0.61 mm). If any of these conditions exist, replace reaction drum (3). 6. Inspect roller clutch (10) for damaged rollers (8), springs (7), or cage (9). Replace roller clutch (10) if any parts are damaged. NOTE Internal ring is used on 1995 transmission only. 7. Inspect snapring (11), case thrust washer (12), reaction carrier thrust washer (13), and internal ring (14) for distortion or damage. Replace any part distorted or damaged. 8. Inspect sun gear shaft (15) for damage. Replace if damaged. 9. Inspect output shaft (16) for damage. Replace if damaged. 10. Refer to para. 2-14 for general inspection instructions for all other gear unit parts.