TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 7-6. TRANSMISSION/TRANSFER CASE ASSEMBLY REMOVAL (3L80) (Cont’d) NOTE It will be necessary to rotate flywheel clockwise from capscrew in front of crankshaft to gain access to capscrews connecting torque converter. 8.. Remove six capscrews (8) and torque converter (9) from flywheel (7) and slide torque converter (9) away from flywheel (7). CAUTION Safety chain must be routed under transmission oil cooler lines and speedometer cable or damage may result. 9. Support transmission (3) with transmission jack and secure with safety chain. 10. Remove transmission mount crossmember (TM 9-2320-280-20). CAUTION •If transmission is lowered too far, cooling fan damage will result. •Wood block must completely cover bottom of engine oil pan or oil pan damage will result. 11. Lower transmission (3) slightly and support engine under oil pan (6) with wood block and stand. 12. Remove 90°speedometer adapter (10) from transfer case (4) and disconnect speedometer cable (11) from bracket (12). Secure 90°speedometer adapter (10) and speedometer cable (11) away from transfer case (4). 13. Remove four capscrews (5) and two studs (2) from transmission (3) and engine (1). WARNING •Torque converter must be removed with the transmission as an assembly. Keep transmission level. The converter may slide off front of transmission and cause injury to personnel or damage to converter. •Do not use hands to free transmission/transfer case assembly of hangups or snags. Use prybar to avoid injury. CAUTION Always remove the transmission/transfer case assembly slowly and watch for the following: binding or hard to move means that something may still be connected that must be removed; ensure that wiring, lines, cables, and rods are not in the path of the removal. 14. Move transmission (3) and transfer case (4) rearward to clear engine (1). 15. Lower transmission (3) and transfer case (4) slowly. 16. Remove transmission (3) and transfer case (4) from under vehicle. NOTE If vehicle is moved because of limited shop space or tactical movement, damage to the engine and the vehicle may occur. To prevent damage, an engine/transmission support sling can be installed. 7-10