TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 7-7. TRANSMISSION/TRANSFER CASE INSTALLATION (3L80) (Cont’d) This task covers: Installation INITIAL SETUP: Applicable Models Manual References All vehicles except: M997A2, M1025A2, TM 9-2320-280-10 M1035A2, M1043A2, M1045A2, M1097A2 TM 9-2320-280-20 TM 9-2320-280-24P Tools General mechanic's tool kit: Equipment Condition automotive (Appendix G, Item 1) Transmission/transfer case assembly prepared for installation (para. 7-10). Materials/Parts Two lockwashers (Appendix E, Item 83) General Safety Instructions O-ring seal (Appendix E, Item 110) •Torque converter must be installed with trans- Cotter pin (Appendix E, Item 8) mission as an assembly. Transmission must be Sealing compound (Appendix B, Item 55) level. •Do not use hand to free transmission/transfer Personnel Required case assembly hang-ups or snags. One mechanic One assistant Maintenance Level Direct support NOTE The following maintenance procedure applies to vehicles with 3L80 transmissions. Refer to para. 7-9 for 4L80-E transmission installation. Installation WARNING Torque converter must be installed with transmission as an assembly. Keep transmission level. The torque converter may slide off front of transmission and cause injury to personnel or damage to converter. CAUTION •Torque converter must be properly installed in transmission or transmission damage will result. •Safety chain must be routed under transmission oil cooler lines or damage to cooler lines will result. •Remove engine support sling prior to transmission/transfer case installation if installed. 1. Place transmission (3) and transfer case (4) on transmission jack and secure with safety chain. WARNING Do not use hands to free transmission/transfer case assembly of hang- ups or snags. Use prybar to avoid injury. CAUTION Always install transmission/transfer case assembly slowly. Raise into chassis carefully and closely observe all components to prevent damage. 2. Position transmission (3) and transfer case (4) under vehicle and raise into place, aligning converter housing pilot holes (7) with engine dowels (6). 7-12