TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download

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9-4. FRONT BUMPER AND TOWING BRACKETS REPLACEMENT This task covers: a. Removal b. Installation a. Removal 1. Remove four locknuts (5), washers (6), capscrews (8), washers (6), and two towing brackets (7) from bumper (1). Discard locknuts (5). 2. Remove six locknuts (3), washers (4), capscrews (9), washers (4), and front bumper (1) from two mounting brackets (2). Discard locknuts (3). 3. Remove four locknuts (5), washers (6), capscrews (8), washers (6), bumper (1), and two towing brackets (7) from mounting brackets (2). Discard locknuts (5). INITIAL SETUP: Applicable Models M997A2, M1025A2, M1035A2, M1043A2, M1045A2, M1097A2 Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Ten locknuts (Appendix G, Item 81) Manual References TM 9-2320-280-24P Equipment Condition Winch removed, if installed (para. 10-108). b. Installation 1. Install bumper (1) and two towing brackets (7) on two mounting brackets (2) with four washers (6), capscrews (8), washers (6), and locknuts (5). Tighten locknuts (5) to 90 lb-ft (122 Nm). 2. Install front bumper (1) on two mounting brackets (2) with six washers (4), capscrews (9), washers (4), and locknuts (3). Tighten locknuts (3) to 90 lb-ft (122 Nm). 3. Install two towing brackets (7) on bumper (1) with four washers (6), capscrews (8), washers (6) and locknuts (5). Tighten locknuts (5) to 90 lb-ft (122 Nm). TM 9-2320-280-20-2 9-4 Change 3 NOTE Perform steps 1 and 2 for bumpers with winch. Proceed to step 3 for bumpers without winch. NOTE Perform step 1 for bumpers without winch. Proceed to step 2 for bumpers with winch.