TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
Page 463 of 1170
TM 9-2320-280-20-3 11-202.2 Change 1 11-138. REAR STEPS MAINTENANCE (Cont'd) 1. If damaged, remove two rubber seals (25), from sides of step frame (2). 2. Remove two seals (1) from edges of step frame (2). 3. Remove four screws (20) from seat (18) and lower tread plate (19), and pry up on seat (18) to remove from tread plate (19). Clean remaining adhesive from lower tread plate (19). 4. Remove four locknuts (6), washers (5), capscrews (12), washers (5), and upper tread plate (21) from step frame (2). Discard locknuts (6). 5. Remove four locknuts (14), washers (15), capscrews (17), washers (15), and lower tread plate (19) from step frame (2) and two side plates (16). Discard locknuts (14). NOTE Cotter pins and washers may not be installed on all vehicles. 6. Remove cotter pin (23), washer (24), and knob (22) from side plate (16) and step frame (2). Discard cotter pin (23). 7. Remove three cotter pins (7), washers (9), spring washers (10), clevis pins (13), and washers (9) from two side plates (16) and step frame (2). Discard cotter pins (7). 8. Remove two rivets (3) and angle bracket (4) from step frame (2). 9. Remove six rivets (11) and two latch striker guide support brackets (8) from step frame (2). NOTE For instructions on replacement of rivets, refer to para. 10-66. b. Disassembly c. Assembly 1. Install two latch striker guide support brackets (8) on step frame (2) with six rivets (11). 2. Install angle bracket (4) on step frame (2) with two rivets (3). NOTE Cotter pins and washers may not be installed on all vehicles. 3. Install two side plates (16) on step frame (2) with three washers (9), clevis pins (13), spring washers (10), washers (9), and cotter pins (7). 4. Install side plate (16) on step frame (2) with knob (22), washer (24), and cotter pin (23). 5. Install upper tread plate (21) on step frame (2) with four washers (5), capscrews (12), washers (5), and locknuts (6). Tighten locknuts (6) to 26 lb-ft (35 N•m). 6. Install lower tread plate (19) on side plates (16) with four washers (15), capscrews (17), washers (15), and locknuts (14). Tighten locknuts (14) to 26 lb-ft (35 N•m). 7. Apply adhesive to back of seat (18). Install seat (18) on lower tread plate (19) with four screws (20). 8. Install two seals (1) on edges of step frame (2). 9. Install two rubber seals (25) on step frame (2) sides, if removed.