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TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download

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TM 9-2320-280-34 17-102 Change 1 17-22. FORWARD CLUTCH ASSEMBLY REPAIR (4L80-E) (Cont’d) d. Assembly CAUTION • All transmission parts must be lubricated with clean transmission fluid (Dexron ® III) before assembly. Foreign material will cause transmission damage. • Perform steps 1 and 2 for 1995-1996 transmissions only. 1. Install inner seal (3) and outer seal (4) on piston (2), with lips of seals facing down toward housing (6). 2. Install center seal (5) on forward clutch housing (6), with lip of seal facing up. 3. Install seal protectors over clutch housing (6). 4. Install piston (2) on forward clutch housing (6). Twist slightly to ensure piston (2) seats on housing (6). 5. Using spring compressor and adapter, install spring and retainer assembly (1) on piston (2) and forward clutch housing (6) and secure with snapring (7). 6. Install dished clutch plate (13) (1995-1996 transmissions only), concave side toward piston, on forward clutch housing (6). 7. Starting with a clutch plate (14), install five clutch plates (14) and clutch plate assemblies (12) on clutch housing (6). 8. Install direct clutch driving hub (9) in forward clutch housing (6) with snapring (8). 9. Install forward clutch housing (6) on turbine shaft (15). 10. Set up dial indicator to measure piston (2) movement with direct clutch driving hub (9). WARNING Air pressure must not exceed 80 psi (552 kPa) when air checking clutch piston. 11. Apply 80 psi (552 kPa) of air pressure to hole “A” on forward clutch assembly (6). Piston (2) should move 0.121-0.186 in. (3.07-4.27 mm). 12. Remove turbine shaft (15), snapring (8), and direct clutch driving hub (9) from forward clutch housing (6). 13. Install thrust washer (10) inside forward clutch hub (11) and bearing washer (11.1) outside forward clutch hub (11) and retain with petrolatum. 14. Install clutch hub (11) on forward clutch housing (6). 15. Install direct clutch driving hub (9) on forward clutch housing (6) with snapring (8).