TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
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TM 9-2320-280-20-3 10-186.4 Change 2 10-108.1. 10,500 LB HYDRAULIC WINCH AND BRACKETS REPLACEMENT (Cont'd) WARNING Winch and bumper must be supported with a floor jack during winch replacement. Failure to support winch may result in injury to personnel or damage to equipment. 8. Remove four locknuts (14), washers (10), capscrews (11), washers (10), and two tow brackets (9) from winch and bumper assembly (8) and left and right bracket assemblies (5). Discard locknuts (14). 9. Remove two locknuts (12), washers (13), and winch and bumper assembly (8) from left and right lower control arm screws (1). Discard locknuts (12). NOTE • Brackets may not require replacement. Replace brackets only when damaged. • The left and right side brackets are removed the same. This procedure covers the left side. 1. Remove three locknuts (3), washers (2), capscrews (15), and washers (2) from left hand bracket assembly (5) and frame rail (4.1). Discard locknuts (3). 2. Remove capscrew (7), washer (6), and left hand bracket assembly (5) from grille extension (4). 1. Install left hand bracket assembly (5) on grille extension (4) with washer (6) and capscrew (7). Finger tighten capscrew (7). 2. Install left hand bracket assembly (5) on frame rail (4.1) with three washers (2), capscrews (15), washers (2), and locknuts (3). Tighten locknuts (3) to 225 lb-ft (303 N•m). WARNING Winch and bumper must be supported with a floor jack during winch replacement. Failure to support winch may result in injury to personnel or damage to equipment. 1. Install winch and bumper assembly (8) on left and right lower control arm screws (1) with two washers (13) and locknuts (12). Finger tighten locknuts (12). 2. Secure winch and bumper assembly (8) and two tow brackets (9) on left and right bracket assemblies (5) with four washers (10), capscrews (11), washers (10), and locknuts (14). 3. Tighten capscrews (7) installed in step c.1. to 37 lb-ft (50 N•m). 4. Tighten locknuts (12) to 260 lb-ft (353 N•m). 5. Tighten locknuts (14) to 90 lb-ft (122 N•m). d. Winch Installation c. Brackets Installation b. Brackets Removal