TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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3-71. RADIATOR LOWER TUBE ASSEMBLY REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Maintenance and repair shop equipment: automotive (Appendix B, Item 2) Materials/Parts Two locknuts (Appendix G, Item 109) Tape (Appendix C, Item 77) Manual References TM 9-2320-387-24P Equipment Condition Cooling system drained (para. 3-61). Maintenance Level Unit 1. Remove drainvalve (11) from radiator lower tube assembly (10). 2. Remove two locknuts (5), washers (3), capscrews (2), and washers (3) from radiator lower tube assembly (10) and frame bracket (4). Discard locknuts (5). 3. Loosen clamp (7) and disconnect water pump inlet hose (6) from radiator lower tube assembly (10). 4. Loosen clamp (8) and disconnect surge tank-to-lower radiator hose (9) from radiator lower tube assembly (10). 5. Loosen clamp (12) and disconnect lower radiator hose (1) from radiator lower tube assembly (10). 6. Remove radiator lower tube assembly (10). 1. Install radiator lower tube assembly (10) on frame bracket (4) with two washers (3), capscrews (2), washers (3), and locknuts (5). Tighten locknuts (5) to 6 lb-ft (8 N • m). 2. Connect lower radiator hose (6) to radiator lower tube assembly (10) and tighten clamp (7) to 85-95 lb-in. (10-11 N • m). 3. Connect surge tank-to-lower radiator hose (9) to radiator lower tube assembly (10) and tighten clamp (8) to 85-95 lb-in. (10-11 N • m). 4. Connect water pump inlet hose (1) to radiator lower tube assembly (10) and tighten clamp (12) to 85-95 lb-in. (10-11 N • m). 5. Apply sealant-type tape to threads of drainvalve (11) and install drainvalve (11) on radiator lower tube assembly (10). b. Installation a. Removal TM 9-2320-387-24-1 Change 1 3-127 FOLLOW-ON TASK: Fill cooling system (para. 3-61). 1 2 3 3 5 4 6 7 8 9 10 11 12