TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-24-1 8-30 Change 1 8-10. REAR WHEEL TOE-OUT ALIGNMENT INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Maintenance and repair shop equipment: automotive (Appendix B, Item 2) Personnel Required One mechanic One assistant Manual References TM 9-2320-387-10 TM 9-2320-387-24P Equipment Condition • Tires inflated to proper pressure (TM 9-2320-387-10). • Vehicle on level ground. Maintenance Level Unit This task covers: a. Preliminary Inspection c. Toe-out Adjustment b. Toe-out Check NOTE • It is not necessary to perform rear wheel toe-out alignment prior to the scheduled semiannual or 3,000 mile (4,827 km) maintenance interval unless abnormal vehicle handling or control is reported, or it is directed by another maintenance task. • Rear wheel alignment adjustments other than toe-out are performed by DS maintenance (chapter 21). • Ensure M1113 models have S250 shelter installed before performing rear wheel toe-out alignment. 1. Check all tires (7) for uniform tread wear. 2. Raise vehicle and place support under lower control arms (11). 3. Check geared hubs (5) for output spindle end play by grasping edges of tires (7) and attempting to move tires (7) up and down. Adjust spindle bearings (para. 6-12) if any spindle movement is apparent. 4. Check for looseness of upper ball joints (4) by grasping top of tires (7) and attempting to move tires (7) in and out. Replace upper ball joints (4) (para. 6-23) if tire (7) movement at top outer edge of tires (7) is 3/8 in. (9 mm) or more. 5. Check for looseness of lower ball joints (8) by grasping bottom of tires (7) and attempting to move tires (7) in and out. Replace lower ball joints (8) (para. 6-24) if tire (7) movement at bottom outer edge of tires (7) is 1/2 in. (13 mm) or more. 6. Lower vehicle. 7. Check for looseness of radius rod ends (6) by attempting to move adjusting sleeves (10) vertically and horizontally. Replace radius rod end(s) (6) (para. 6-22) if any movement is apparent. 8. Check for damaged control arm bushings (1). Replace upper control arms (3) (para. 6-25) or lower control arms (11) (para. 6-26) if bushings (1) are damaged. 9. Proceed to task b. a. Preliminary Inspection