TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
Page 161 of 1170
TM 9-2320-280-20-3 10-84. HEATER OUTLET/lNLET PIPING MAINTENANCE This task covers: a. Removal c. Installation b. Inspection INITIAL SETUP: Tools Equipment Condition General mechanic’s tool kit: Cooling system drained as required (para. 3-60). automotive (Appendix B, Item 1) Manual References TM 9-2320-280-10 TM 9-2320-280-24P NOTE Procedures for installing and removing inlet and outlet piping are basically the same. This procedure covers the outlet piping. 1. Loosen clamp (9) from heater outlet hose (10) and water pump nipple (8) and disconnect outlet hose (10). 2. Remove nut (12), washer (7), capscrew (6), and washer (7) from inlet hose clamp (5) and outlet hose clamp (13). 3. Loosen clamp (2) and remove heater outlet hoses (3) and (10), and heater outlet tube (11) from vehicle. 4. Loosen two clamps (4) and remove heater outlet tube (11) from heater outlet hoses (3) and (10). 5. Remove clamps (2), (4), (13), and (9) from hoses (3) and (10). Inspect heater outlet port (1) and water pump nipple (8) for damage. Replace if damaged. 1. Install clamps (2), (4), (13), and (9) on hoses (3) and (10). 2. Connect two heater outlet hoses (3) and (10) to heater outlet tube (11) and tighten two Clamps (4). 3. Install heater outlet hoses (3) and (10) and heater outlet tube (11) between heater outlet port (1) and water pump nipple (8). 4. Connect heater outlet hose (3) to heater outlet port (1) and tighten clamp (2). 5. Install outlet hose clamp (13) on inlet hose clamp (5) with washer (7), capscrew (6), washer (7), and nut (12). 6. Connect heater outlet hose (10) to water pump nipple (8) and tighten clamp (9). 10-138