TM 9-2320-280-20-29-10. REAR BUMPER REPLACEMENT (Cont’d)2.3.4.5.6.7.8.9.Install rear bumper (12) on inner mounting brackets (8) with four washers (7), capscrews (17), washers (7),and locknuts (6). Tighten locknuts (6) to 90 lb-ft (122 N m).Install rear bumper (12) on mounting brackets (5) with four washers (4), capscrews (18), washers (4),and locknuts (3). Tighten locknuts (3) to 90 lb-ft (122 N m).NOTEPerform steps 4 and 5 for M997A2, M1025A2, M1035A2, M1043A2,M1045A2, and M1097A2 vehicles only.Secure rear bumper (12) to two mounting brackets (5) with eight washers (26), capscrews (25),washers (26), and locknuts (27). Tighten locknuts (27) to 90 lb-ft (122 N m).Install two tiedown rings (24) on rear bumper (12) and two brackets (5) with two nuts (23). Tightennuts (23) to 16 lb-ft (22 N m), back off to the nearest cotter pin slot, and install two cotter pins (22).Install two tiedown brackets (19) on rear bumper (12) with four washers (4), capscrews (18), washers (4),and locknuts (3). Tighten locknuts (3) to 90 lb-ft (122 N·m)Install rear bumper (12) on braces (21) with four washers (2), capscrews (20), washers (2), andlocknuts (1). Tighten locknuts (1) to 90 lb-ft (122 N·m).Position trailer receptacle (10) through rear bumper (12) and install plate (13) and trailer receptacle (10)on rear bumper (12) with two capscrews (14) and nut and lockwasher assemblies (11). Tighten nut andlockwasher assemblies (11) to 8 lb-ft (11 N m).Install trailer receptacle cover (16) on plate (13) and rear bumper (12) with four capscrews (15) and nutand lockwasher assemblies (9). Tighten nut and lockwasher assemblies (9) to 8 lb-ft (11 N·m).FOLLOW-ON TASK Install towing pintle (para. 9-12).9-13
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