TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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6-12. GEARED HUB SPINDLE BEARING ADJUSTMENT (Cont'd) TM 9-2320-387-24-1 6-36 Change 1 NOTE For new configuration, two locktabs on lockwasher must be bent away from retaining nut for removal. 3. Bend locktab(s) (5) on lockwasher (2) away from retaining nut (3). 4. Using retaining nut wrench, remove retaining nut (3) and lockwasher (2) from spindle (1). Discard lockwasher (2). NOTE If four-slotted retaining nut TN-07 is present, it is recommended to replace it with eight-slotted retaining nut 12342680. 5. Apply grease to face of retaining nut (3) and install lockwasher (2) and retaining nut (3) on spindle (1). 6. Using retaining nut wrench, tighten retaining nut (3) to 35-45 lb-ft (47-61 N•m). 7. Rotate spindle (1) five full rotations clockwise and five full rotations counterclockwise to properly seat bearings. 8. Loosen retaining nut (3) until it is finger-tight, then retighten nut to 23-27 lb-ft (31-37 N•m). WARNING Ensure locktab on lockwasher is bent completely into slot on retaining nut. Eight-slotted retaining nut provides additional security by enabling two locktabs on lockwasher to be bent into slots on retaining nut. Failure to do this may cause injury to personnel or damage to equipment. NOTE • For new configuration, two locktabs on lockwasher must be bent into slots on retaining nut. • It may be necessary to slightly loosen or tighten retaining nut to gain proper alignment with locktabs. 9. Determine which locktab(s) (5) on lockwasher (2) aligns with slot(s) (4) in retaining nut (3). Bend locktab(s) (5) into slot(s) (4) on retaining nut (3). 1 3 2 2 3 4 5 4 2 3 4 5 RETAINING NUT WRENCH NEW CONFIGURATION