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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 2526. A/C HEATER/EVAPORATOR ASSEMBLY (FRONT) MAINTENANCE This taskcovers: a. Disassembly b. Assembly INITIAL SETUP: ApplicableModels Manual References Ml114 TM 9-2320-387-24P Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Riveter tool kit (Appendix B, Item 123) Materials/Parts Three O-rings (Appendix G, Item 267) Ten rivets (Appendix G, Item 355) RTV sealant (Appendix C, Item 74) Refrigerant oil (Appendix C, Item 48) EquipmentCondition l A/C thermostat removed (para. 25-24). l AK! blower motor removed (para. 25-25). General Safety Instructions Heater core and evaporator fins are sharp and bend easily. MaintenanceLevel Direct support 1 a. Disassembly 1 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. -11. 12. 13. 14. 15. 16. 17. WARNING Heater core and evaporator fins are sharp and bend easily. Use care when handling to avoid injury to personnel or damage to equipment. NOTE For instructions on replacement of rivets, refer to para. 10-56. Remove three screws (11) and rivet (1) from top mounting bracket (3) and bottom mounting bracket (12). Remove bottom mounting bracket (12) from top mounting bracket (3). Remove seven rivets (2) from top mounting bracket (3) and top case (4) and remove top mounting bracket (3) from case (4). Remove screw (15) and clamp (16) from cable (6) and top case (4). Cut sealant at joint of top case (4) and bottom case (9). Remove ten screws (5) from top case (4) and bottom case (9). Remove sealant from heater core (14) and low-pressure outlet tube (26). Remove top case (4) from bottom case (9). Remove sealant from case joint. Remove heater core (14) from bottom case (9). Remove evaporator (13) from bottom case (9). Remove tube (24) from valve (21). Remove O-ring (25) from tube (24). Discard O-ring (25). Remove bulb clamp (23) from low-pressure outlet tube (26). Disconnect pressure sensor tube (22) from low-pressure outlet tube (26). Remove O-ring (19) from pressure sensor tube (22). Discard O-ring (19). Remove valve (21) and O-ring (20) from evaporator (13). Discard O-ring (20). Remove detent washer (8) and cable (6) from control plate (7). 25-68