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 12-10 Change 1 12-7. ENGINE/CREW COMPARTMENT HEATER CIRCULATING PUMP REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts O-ring (Appendix G, Item 261.1) Manual References TM 9-2320-387-24P Equipment Condition • Battery ground cables disconnected (para. 4-68). • Cooling system drained, as required (para. 3-61). • Heater lower hose assembly disconnected (para. 12-5). Maintenance Level Unit NOTE Prior to removal, tag leads for installation. 1. Remove heater harness connector cover (3) from harness connector (2). 2. Disconnect two leads (1) (brown 5 and black 8) from heater harness connector (2). 3. Remove two screws (7), clamp (6), heater pump (5), and O-ring (8) from heater (4). Discard O-ring (8). 1. Install O-ring (8) and heater pump (5) on heater (4) with clamp (6) and two screws (7). 2. Connect two leads (1) (brown 5 and black 8) to heater harness connector (2). 3. Install heater harness connector cover (3) on harness connector (2). b. Installation a. Removal