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TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download

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I TM 9-2320-387-24-l 1 6-27. COIL SPRING REPLACEMENT This taskcovers: a. Removal b. Installation INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Locknut (Appendix G, Item 118) Four locknuts (Appendix G, Item 116) Sealing compound (Appendix C, Item 63) Manual References TM 9-2320-387-10 TM 9-2320-387-24P Equipment Condition l Hood raised and secured (front springs only) (TM 9-2320-387-10). l Shelter removed (Ml113 only) (rear springs only) (para. 11-78). General Safety Instructions Lower control arm must be supported during removal and installation. MaintenanceLevel Unit NOTE The replacement procedure for all four coil springs is basically the same. This procedure covers the left front coil spring. I[ 1. Remove capscrew (131, two washers (141, and stabilizer bar link (15) from lower control arm (12). 2. Remove wheel (para. 8-3). NOTE Note direction of inner and outer capscrews for installation. 3. Remove four locknuts (lo), washers (81, capscrews (91, and washers (8) from lower ball joint (71, geared hub (61, and lower control arm (12). Discard locknuts (10). WARNING Lower control arm must be supported during removal and installation. Failure to support lower control arm may cause injury to personnel or damage to equipment. 4. Place jack under lower control arm (12) and raise lower control arm (12) slightly to relieve tension on shock retaining pin (2). NOTE For rear coil spring replacement, it may be necessary to spread frame from body by positioning prybar between hinge mount bracket and rear bumper to gain access to shock absorber retaining pin nut. 5. Remove locknut (51, retaining pin (2), washer (3), and shock absorber (11) from spring seat (4) and collapse shock absorber (11). Discard locknut (5). NOTE It may be necessary to loosen lower control arm capscrews to allow lower control arm to be lowered. 6. Pull geared hub (6) and ball joint (7) away from lower control arm (121, lower the control arm (121, and remove coil spring (1) from lower control arm (12) and shock absorber (11). 6-60