TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
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11-161. LITTER RAIL EXTENSION REPLACEMENT This task covers: a. Disassembly b. Assembly INITIAL SETUP: Applicable Models M996, M996A1, M997, M997A1, M997A2 Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Four locknuts (Appendix G, Item 128) Eight locknuts (Appendix G, Item 70) Twenty-two solid rivets (Appendix G, Item 267) Four solid rivets (Appendix G, Item 268) Four locknuts (Appendix G, Item 79) Eight blind rivets (Appendix G, Item 261) Eight solid rivets (Appendix G, Item 273) Manual References TM 9-2321-280-10 TM 9-2320-280-24P Equipment Condition Litter rail extension removed from stowage compartment (TM 9-2320-280-10). NOTE For instructions on replacement of rivets, refer to para. 10-66. 1. Remove two locknuts (18), washers (15), capscrews (14), washers (15), support feet (17), and tubes (16) from support legs (12). Discard locknuts (18). 2. Remove four locknuts (21), washers (22), capscrews (24), washers (22), and strap assembly (23) from two support legs (12). Discard locknuts (21). NOTE Note locations of capscrews for installation. 3. Remove four locknuts (20), washers (19), capscrews (26), washers (19), and hinge braces (25) from support legs (12). Discard locknuts (20). 4. Remove four locknuts (30), washers (29), capscrews (27), and two hinges (28) from four hinge braces (25). Discard locknuts (30). 5. Remove two locknuts (10), washers (8), capscrews (7), washers (8), support legs (12), and tubes (9) from rails (6). Discard locknuts (10). 6. Remove four rivets (13) and two leg stops (11) from support legs (12). 7. Remove eight rivets (1) from ends of two extension rail skids (2). Remove twenty-two rivets (3) and two skids (2) from extension rails (6). 8. Remove eight rivets (5) and two hooks (4) from extension rails (6). 1. Install two hooks (4) and ends of skids (2) on extension rails (6) with eight rivets (5). 2. Install two skids (2) to extension rails (6) and secure to ends with eight rivets (1). 3. Install skids (2) on extension rails (6) with twenty-two rivets (3). 4. Install two leg stops (11) on support legs (12) with four rivets (13). 5. Install two support legs (12) and tubes (9) on rails (6) with two washers (8), capscrews (7), washers (8), and locknuts (10). Tighten locknuts (10) to 6 lb-ft (8 N•m). b. Assembly a. Disassembly TM 9-2320-280-20-3 11-238 Change 2