TB-9-2320-335-13&P HMMWV Operator and Field Maintenance, Parts, Tools M1151A1 M1152A1 M1165A1 Download
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9-4 9-7. REAR BUMPER REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: 1. Remove four assembled locknuts (7), capscrews (13), and trailer receptacle cover (14) from trailer receptacle (8). Discard assembled locknuts (7). 2. Remove two assembled locknuts (9), capscrews (12), plate (11), and trailer receptacle (8) from rear bumper (10). Discard assembled locknuts (9). 3. Remove four locknuts (23), washers (20), capscrews (19), and washers (20) from rear bumper (10) and two braces (22). Discard locknuts (23). 4. Remove two cotter pins (1), nuts (2), and tiedown rings (16) from rear bumper (10) and two mounting brackets (3). Discard cotter pins (1). 5. Remove two cotter pins (28), nuts (27), spring washers (24), capscrews (26), and shackles (25) from rear bumper (10). Discard cotter pins (28) and spring washers (24). 6. Remove eight locknuts (21), washers (18), capscrews (17), and washers (18) from rear bumper (10) and two mounting brackets (3). Discard locknuts (21). 7. Remove four locknuts (4), washers (5), capscrews (15), washers (5), and rear bumper (10) from two inner mounting brackets (6). Discard locknuts (4). 1. Install rear bumper (10) on two inner mounting brackets (6) with four washers (5), capscrews (15), washers (5), and locknuts (4). Tighten locknuts (4) to 90 lb-ft (122 N•m). 2. Install rear bumper (10) on two mounting brackets (3) with eight washers (18), capscrews (17), washers (18), and locknuts (21). Tighten locknuts (21) to 90 lb-ft (122 N•m). 3. Install two shackles (25) on rear bumper (10) with two capscrews (26), spring washers (24), and slotted nuts (27). Tighten slotted nuts (27) to 15-20 lb-ft (20-27 N•m). 4. Back off two slotted nuts (27) to align with hole in capscrews (26) and install two cotter pins (28) in slotted nuts (27). b. Installation a. Removal Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Maintenance and repair shop equipment: automotive (Appendix B, Item 2) Materials/Parts Sixteen locknuts (Appendix A, Item 85) Six assembled locknuts (Appendix A, Item 134) Two cotter pins (Appendix A, Item 22) Two cotter pins (Appendix A, Item 24) Two spring washers (Appendix A, Item 318.1) Personnel Required One mechanic One assistant Manual References TM 9-2320-387-24P Equipment Condition • Spare tire carrier removed (para. 10-96). • Towing pintle removed (para. 9-9.1). Maintenance Level Unit TB 9-2320-335-13&P