TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 12-12. REAR UPPER CONTROL ARM BRACKET REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP : Tools Equipment Condition General mechanic's tool kit: Wheel removed (TM 9-2320-280-20). automotive (Appendix G, Item 1) Maintenance Level Materials/Parts Direct support Six locknuts (Appendix E, Item 60) Manual References TM 9-2320-280-20 TM 9-2320-280-24P NOTE The procedures for removing and installing the four rear upper control arm brackets are basically the same. This procedure covers the right rear upper control arm front bracket. a. Removal 1. Remove capscrew (2) and clamp (1) from bracket (5) and disconnect vent line (3) from geared hub (4). 2. Remove two locknuts (17), washers (13), capscrews (14), washers (13), and upper control arm (15) from two control arm brackets (16). Discard locknuts (17). 3. Remove four locknuts (7), washers (8), capscrews (12), washers (8), spacer (10), shim(s) (11) if ¾ present, vent line mounting bracket (9), and control arm bracket (16) from frame rail (6). Discard locknuts (7). b. Installation 1. Install shim(s) (11) if removed, spacer (10), vent line bracket (9), and control arm bracket (16) on frame rail (6) with four washers (8), capscrews (12), washers (8), and locknuts (7). Tighten locknuts (7) to 90 lb-ft (122 N.m). 2. Install upper control arm (15) on two upper control arm brackets (16) with two washers (13), capscrews (14), washers (13), and locknuts (17). Tighten locknuts (17) to 260 lb-ft (353 N.m). 3. Connect vent line (3) to geared hub (4) and install clamp (1) on bracket (5) with capscrew (2). 12-16