TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
Page 575 of 953
NOTE Perform steps 6 through 9 for 4L80-E transmissions only. CAUTION Transfer case must be supported during removal and installation of crossmember for access to oil pan capscrew and to prevent damage to equipment. 6. Place support under transfer case and remove two locknuts (3), washers (2), capscrews (6), and crossmember (4) from support brackets (1) and (5). Discard locknuts (3). NOTE Oil pan gasket is reusable. Discard only if damaged. 7. Remove seventeen capscrews (12), oil pan (11), and gasket (10) from transmission (7). 8. Remove magnet (9) from oil pan (11). Remove filter (8) from transmission (7). WARNING Drycleaning solvent is flammable and will not be used near an open flame. A fire extinguisher will be kept nearby when the solvent is used Use only in well-ventilated places. Failure to do this may result in injury to personnel and/or damage to equipment. 9. Clean oil pan (11) thoroughly with drycleaning solvent. 5-2. TRANSMISSION SERVICE (Cont’d) TM 9-2320-280-20-2 5-4 Change 3 NOTE Perform steps 1 through 4 for 4L80-E transmissions only. 1. Install filter (8) in transmission (7). Install magnet (9) in oil pan (11). 2. Install gasket (10) and oil pan (11) on transmission (7) with seventeen capscrews (12). Tighten capscrews (12) to 18 lb-ft (24 N • m). 3. Install crossmember (4) on support brackets (1) and (5) with two capscrews (6), washers (2), and locknuts (3). Tighten locknuts (3) to 90 lb-ft (122 N • m). 4. Remove support from transfer case. c. Transmission Filter Installation