TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
Page 884 of 1258
TM 9-2320-280-34 17-100 Change 1 17-22. FORWARD CLUTCH ASSEMBLY REPAIR (4L80-E) This task covers: a. Disassembly c. Inspection b. Cleaning d. Assembly NOTE Work area should be well-ventilated, clean, and free from blowing dirt and dust. 1. Remove snapring (1) and direct clutch driving hub (2) from forward clutch housing (7). 2. Remove forward clutch hub (4), thrust washer (3), and bearing washer (4.1) from direct clutch driving hub (2). 3. Remove five clutch plates (8), clutch plate assemblies (5), and dished clutch plate (6) (1995-1996 transmission only) from forward clutch housing (7). 4. Using spring compressor, adapter, and clutch spring adapter, compress spring and retainer assembly (10) and remove snapring (9) from forward clutch housing (7). 5. Remove spring and retainer assembly (10) from forward clutch housing (7). NOTE Perform steps 6, 7, and 8 for 1995-1996 transmissions only. 6. Remove piston (11) from forward clutch housing (7). 7. Remove inner and outer seals (12) and (13) from piston (11). Discard seals (12) and (13). 8. Remove center seal (14) from clutch housing (7). Discard center seal (14). Clean all forward clutch components in accordance with para. 2-13. NOTE For general inspection instructions, refer to para. 2-14. 1. Inspect five clutch plates (8) for signs of burning, scoring, or cracks. Replace any that are burned, scored, or cracked. c. Inspection b. Cleaning a. Disassembly INITIAL SETUP: Applicable Models M997A2, M1025A2, M1035A2, M1043A2, M1045A2, M1097A2, M1123 Tools General mechanic’s tool kit: automotive (Appendix G, Item 1) Special Tools Clutch compressor (Appendix G, Item 47) Adapter (Appendix G, Item 48) Seal protectors (Appendix G, Item 46) Materials/Parts Inner seal (Appendix E, Item 160) Outer seal (Appendix E, Item 161) Center seal (Appendix E, Item 157) Materials/Parts (Cont’d) Petrolatum (Appendix B, Item 38) Transmission fluid (Appendix B, Item 24) Manual References TM 9-2320-280-24P Equipment Condition Transmission disassembled into subassemblies (para. 17-14). General Safety Instructions Air pressure must not exceed 80 psi (552 kPa) when air checking clutch piston.