TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 2 Download
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TM 9-2320-387-24-2 1 28-12. FOURTH CLUTCH ASSEMBLY REPAIR This task covers: a. Disassembly b. Cleaning c. Inspection d. Assembly e. End Play Measurement INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Special Tools Seal protectors (Appendix B, Item 71) Materials/Parts Inner seal (Appendix G, Item 3901 Outer seal (Appendix G, Item 392) Petrolatum (Appendix C, Item 52) Manual References TM 9-2320-387-24P EquipmentCondition Transmission disassembled into subassemblies (para. 28-3). Maintenance Level General support Transmission fluid (Appendix C, Item 37) NOTE Work area should be well-ventilated, clean, and free from blowing dirt and dust. a. Disassembly 1. Remove snapring (l), backing plate (ll), four clutch plates (91, 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). vb.Cleaningl Clean all components in accordance with para. 2-14. 1 c. Inspection 1 1. Inspect piston (31, backing plate (ll), 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). (d.Assemblyl 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 (31, with lip facing toward spring and retainer assembly (7) side. 2. Install outer seal (6) on housing (41, with lip facing away from spring and retainer assembly (7) side. 3. Place inner seal protector J 38731-1 on clutch housing (4). 4. Place outer seal protector J 38731-2 on piston (3). ,* 5. Position piston (3) on base J 38731-3 with snapring groove of piston (3) up. 6. Place housing (4) over piston (3) while holding inner seal protector in position. 28-46