TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 17-7. FORWARD CLUTCH AND TURBINE SHAFT REPAIR (3L80) This task covers: a. Disassembly c. Inspection b Cleaning d. Assembly INITIAL SETUP: Applicable Models Materials/Parts (Cont'd ) All vehicles except: M997A2, M1025A2, Outer piston seal (Appendix E, Item 130) M1035A2, M1043A2, M1045A2, M1097A2 Petrolatum (Appendix B, Item 38) Transmission fluid (Appendix B, Item 23) Tools Manual References General mechanic's tool kit: TM 9-2320-280-24P automotive (Appendix G, Item 1) Special Tools Equipment Condition Clutch spring compressor Transmission disassembled into subassemblies (Appendix G, Item 35) (para. 17-3). Clutch spring compressor adapter (Appendix G. Item 36) General Safety Instructions Air pressure must not exceed 50 psi (345 kPa) Materials/Parts when air checking clutch piston. Five composition clutch plates (Appendix E, Item 134) Maintenance Level Inner piston seal (Appendix E, Item 127) General support NOTE Work area should be well ventilated, clean, and free from blowing dirt and dust. a. Disassembly 1. Remove snapring (1), direct clutch hub (2), forward clutch hub (3), thrust washer (4), five composition clutch plates (7), and steel clutch plates (5) from forward clutch housing (6). Discard composition clutch plates (7). 2. Place clutch housing (6) in press. Using clutch spring compressor and clutch spring compressor adapter, compress spring retainer (9) and remove snapring (8) and spring retainer (9) from clutch housing (6). NOTE Keep forward clutch release springs separate from direct clutch release springs. 3. Remove spring retainer (9), sixteen release springs (10), and clutch piston (12) from clutch housing (6). 4. Remove inner piston seal (13) and outer piston seal (14) from clutch piston (6). Discard seals (13). 5. Remove clutch piston apply ring (11) from clutch piston (12). b. Cleaning Clean all forward clutch and turbine shaft components in accordance with para. 2-13. c. Inspection NOTE For general inspection instructions, refer to para. 2-14. 1. Inspect five steel clutch plates (5) for signs of burning, scoring, or cracks. Replace any that are burnt, scored, or cracked. 17-22