TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 17.8. DIRECT CLUTCH AND INTERMEDIATE SPRAG REPAIR (3L80) This task covers: a. Removal b. Installation INITIAL SETUP: Applicable Models Materials/Parts (Cont'd) All vehicles except: M997A2, M1025A2, Outer piston seal (Appendix E, Item 130) M1035A2, M1043A2, M1045A2, M1097A2 Center piston seal (Appendix E, Item 126) Transmission fluid (Appendix B, Item 23) Tools General mechanic's tool kit: Manual References automotive (Appendix G, Item 1) TM 9-2320-280-24P 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. Six 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), sprag retainer (2), outer race (3), bushing (4), sprag (5), and bushing (4) from direct clutch housing (6). 2. Remove snapring (7), backing plate (8), six composition clutch plates (10), and steel clutch plates (9) from clutch housing (6). Discard composition clutch plates (10). 3. Using press, clutch spring compressor, and clutch spring compressor adapter, compress spring retainer (12). 4. Remove snapring (11) securing spring retainer (12) to clutch housing (6). NOTE Keep direct clutch release springs separate from forward clutch release springs. 5. Remove spring retainer (12), fourteen release springs (13), and clutch piston (15) from clutch housing (6). 6. Remove inner piston seal (16) and outer piston seal (17) from clutch piston (15). Discard seals (16) and (17). 7. Remove center piston seal (18) from clutch housing (6). Discard seal (18). 8. Remove clutch piston apply ring (14) from clutch piston (15). b. Cleaning Clean all direct clutch and intermediate sprag components in accordance with para. 2-13. c. Inspection NOTE For general inspection instructions, refer to para. 2-14. 1. Inspect clutch backing plate (8) and six steel clutch plates (9) for signs of burning, scoring, or cracks. . Replace any plate if burnt, scored, or cracked. 17-26