TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
Page 152 of 953
3-75. THERMOSTAT REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Gasket (Appendix G, Item 54) Sealing compound (Appendix C, Item 44) Manual References TM 9-2320-280-24P Equipment Condition Cooling system drained as required (para. 3-60). 1. Remove capscrew (5), stud (4), thermostat housing (3), thermostat (2), and gasket (6) from water crossover (1). Discard gasket (6). 2. Clean gasket surface on water crossover (1) and thermostat housing (3). 1. Install thermostat (2) into water crossover (1) ensuring valve sensor (7) points toward crossover (1). 2. Position gasket (6) on thermostat housing (3). Apply sealing compound to fastener threads and insert capscrew (5) and stud (4) to align gasket (6). 3. Install thermostat housing (3) over thermostat (2) on water crossover (1) with capscrew (5) and stud (4). Tighten capscrew (5) and stud (4) to align gasket (6). b. Installation a. Removal TM 9-2320-280-20-2 3-130 Change 3 FOLLOW-ON TASK: Fill cooling system (para. 3-60). 1 2 7 6 5 3 4