TM 9-2320-361-20 10-9. FRONT BUMPER REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: APPLICABLE MODELS All MATERIALS/PARTS Thirty locknuts (w/o winch) Twenty-eight locknuts (w/winch) PERSONNEL REQUIRED Two REFERENCES (TM) TM 9-2320-361-10 TM 9-2320-361-20P EQUIPMENT CONDITION Parking brake set (TM 9-2320-361-10). Front lifting brackets and shackles removed (para. 10-2 for vehicles w/o winch) (para. 10-3 for vehicles w/winch). a. Removal NOTE Perform step 1 for vehicles w/o winch. Perform step 2 for vehicles w/ winch. 1. Remove six locknuts (5) and screws (7) from bottom of bumper (2) and frame (4). Discard locknuts (5). 2. Remove four locknuts (5) and screws (7) and two lower plates (8) from frame (4). Discard locknuts (5). NOTE Assistant required to support bumper in step 2. 3. Remove bumper (2), two plates (3) and two plates (8) from frame (4). NOTE Mark plates for installation. 4. Remove twelve locknuts (6), screws (1), and two upper plates (3) from bumper (2). Discard locknuts (6). 5. Remove twelve locknuts (9), screws (10), and two lower plates (8) from bumper (2). Discard locknuts (9). 1. Install two upper plates (3) on bumper (2) with twelve screws (1) and new locknuts (6). 2. Install two lower plates (8) on bumper (2) with twelve screws (10) and new locknuts (9). NOTE Assistant required to support bumper in step 3. Perform step 3 for vehicles w/o winch. Perform step 4 for vehicles w/winch. 3. Install bumper (2), two plates (3) and two plates (8) on frame (4) with six screws (7) and new locknuts (5). Do not tighten screws (7). 4. Install bumper (2) and two plates (3) and (8) on frame (4) with four screws (7) and new locknuts (5). Do not tighten screws (7). 5. Install brackets and shackles on bumper (2) and frame (4) (paras. 10-2 and 10-3). 6. Tighten six screws (7) and locknuts (5). 10-12