TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
Page 917 of 953
9-15. TRANSMISSION MOUNT CROSSMEMBER REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Two locknuts (Appendix G, Item 128) Manual References TM 9-2320-280-24P TM 9-2320-280-20-2 9-22 Change 3 CAUTION Transmission must be supported during removal and installation of transmission mount crossmember to prevent damage to equipment. NOTE Perform step 1 and 2 for all vehicles except “A2” series. Perform steps 3 and 4 for “A2” series only. 1. Place support under transmission and remove two nuts (8), washers (2), capscrews (3), and washers (2) from transmission mount crossmember (5) and two transmission support brackets (1). 2. Remove two locknuts (7), washers (6), and crossmember (5) from transmission mount (4). Discard locknuts (7). 3. Place support under transmission and remove two nuts (12), washers (11), capscrew (10), and washer (11) from crossmember (13) and two support brackets (1). 4. Remove two locknuts (15), washers (14), and crossmember (13) from transmission mount (9). Discard locknuts (15). NOTE Perform step 1 and 2 for all vehicles except “A2” series. Perform steps 3 and 4 for “A2” series only. 1. Install crossmember (5) on two support brackets (1) with washers (2), capscrews (3), washers (2), and nuts (8). Tighten nuts (8) to 90 lb-ft (122 N•m). 2. Install crossmember (5) on transmission mount (4) with two washers (6) and locknuts (7). Tighten locknuts (7) to 29 lb-ft (38 N•m). 3. Install crossmember (13) on two support brackets (1) with washer (11), capscrew (10), two washers (11), and nuts (12). Tighten nuts (12) to 90 lb-ft (122 N•m). 4. Install crossmember (13) on transmission mount (9) with two washers (14) and locknuts (15). Tighten locknuts (15) to 28 lb-ft (38 N•m). 5. Remove support. b. Installation a. Removal