TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 2 Download
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TM 9-2320-387-24-2 1 21-6. GEARED HUB REPAIR (Cont’d) 1 10. Remove four capscrews (11, washers (21, drive gear retainer (31, shim gaskets (41, bearing cup (51, and drive gear (6) from geared hub (8). 11. Remove retaining washer (7) from inside drive gear (6) or geared hub (8). 12. Remove output seal (9) from geared hub (8). Discard seal (9). 13. Remove input seal (10) from drive gear retainer (3). Discard seal (101. b. Cleaning Clean all geared hub components in accordance with para. 2-14. c. Inspection NOTE For general inspection instructions, refer to para. 2-15. For general repair instructions, refer to para. 2-16. Replace both bearings of a pair if either bearing is damaged. A blind hole puller should be used to remove bearing races from geared hub. A bearing splitter-type puller should be used to remove drive gear bearings. A bearing spacer is seated in geared hub behind inner spindle bearing race. Inspect bearing spacer only if bearing race has to be replaced. 1. Inspect all bearings (12) and bearing races (13) (TM 9-214). Replace if damaged. NOTE If all bearings pass inspection and backlash, measured in step 3 of subtask a., was over 0.018 in. (0.45 mm), both drive and driven gears are worn and must be replaced. If any of the bearings failed inspection backlash between drive and driven gear must be rechecked at installation prior to replacing gears. Drive and driven gears must be replaced as matched set. 2. Inspect splines and gear teeth on drive gear (6) and driven gear (11). Replace both if damaged. 21-12