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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 17-104 Change 1 17-23. FOURTH CLUTCH ASSEMBLY REPAIR (4L80-E) 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). Maintenance Level General support This task covers: a. Disassembly d. Assembly b. Cleaning e. End Play Measurement c. Inspection 1. Remove snapring (1), backing plate (11), four clutch plates (9), and clutch plate assemblies (10) from clutch housing (4). 2. Remove snapring (8) and spring and retainer assembly (7) from clutch housing (4). 3. Remove piston (3) from clutch housing (4). 4. Remove inner seal (2) from piston (3) and outer seal (6) from housing (4). Discard seals (2) and (6). a. Disassembly 1. Inspect piston (3), backing plate (11), and clutch housing (4) for cracks, breaks, and damaged seal ring grooves. Replace any that are cracked, broken, or damaged. 2. Inspect plug (5). If missing, replace clutch housing (4). c. Inspection CAUTION All transmission parts must be lubricated with clean transmission fluid (Dexron® III) before assembly. Foreign material will cause transmission damage. 1. Install inner seal (2) on piston (3), with lip facing toward spring and retainer assembly (7) side. 2. Install outer seal (6) on housing (4), with lip facing away from spring and retainer assembly (7) side. 3. Place inner seal protector J38731-1 on clutch housing (4). 4. Place outer seal protector J38731-2 on piston (3). 5. Position piston (3) on base J38731-3 with snapring groove of piston (3) up. 6. Place housing (4) over piston (3) while holding inner seal protector in position. d. Assembly b. Cleaning Clean all components in accordance with para. 2-13. INITIAL SETUP: Applicable Models M997A2, M1025A2, M1035A2, M1043A2, M1045A2, M1097A2, M1123 Tools General mechanic’s tool kit: automotive (Appendix G, Item 1) Special Tools Seal protectors (Appendix G, Item 46) Materials/Parts Inner seal (Appendix E, Item 163) Outer seal (Appendix E, Item 166) NOTE Work area should be well-ventilated, clean, and free from blowing dirt and dust.