TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
Page 696 of 1170
12-63. SWINGFIRE HEATER RADIATOR LOWER TUBE ASSEMBLY REPLACEMENT This task covers: a. Removal b. Installation a. Removal 1. Remove two locknuts (5), washers (3), capscrews (2), and washers (3) from radiator lower tube assembly (12) and frame bracket (4). Discard locknuts (5). 2. Loosen clamp (9) and disconnect water pump inlet hose (8) from radiator lower tube assembly (12). 3. Loosen clamp (6) and disconnect swingfire heater pump hose (7) from radiator lower tube assembly (12). 4. Loosen clamp (11) and disconnect surge tank hose (10) from radiator lower tube assembly (12). 5. Loosen clamp (13) and disconnect lower radiator hose (1) from radiator lower tube assembly (12). 6. Remove radiator lower tube assembly (12). 7. Remove clamps (9), (6), (11), and (13) from water pump inlet hose (8), swingfire heater pump hose (7), surge tank hose (10), and lower radiator hose (1). INITIAL SETUP: Applicable Models M966, M966A1, M996, M996A1, M997, M997A1, M997A2, M998, M998A1, M1025, M1025A1, M1025A2, M1037, M1038, M1038A1 Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Two locknuts (Appendix G, Item 70) Manual References TM 9-2320-280-24P Equipment Condition Cooling system drained (para. 3-60). b. Installation 1. Install clamps (9), (6), (11), and (13) on water pump inlet hose (8), swingfire heater pump hose (7), surge tank hose (10), and lower radiator hose (1). 2. Connect lower radiator hose (1) to radiator lower tube assembly (12) with clamp (13). 3. Connect surge tank hose (10) to radiator lower tube assembly (12) with clamp (11). 4. Connect swingfire heater pump hose (7) to radiator lower tube assembly (12) with clamp (6). 5. Connect water pump inlet hose (8) to radiator lower tube assembly (12) with clamp (9). 6. Connect radiator lower tube assembly (12) to bracket (4) with two washers (3), capscrews (2), washers (3), and locknuts (5). TM 9-2320-280-20-3 12-90 Change 2