TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 2 Download
Page 163 of 1555
10-76. HEATER ASSEMBLY REPLACEMENT (Cont’d) 2. Loosen two clamps (1) and disconnect heater inlet hose (2) and heater outlet hose (12) from inlet port (3) and outlet port (11). 3. Remove four locknuts (4), washers (5), capscrews (6), and washers (5) from heater assembly (8) and body (7). Discard locknuts (4). 4. Disconnect harness lead 400D (9) from heater assembly lead (10). 5. Remove nut and lockwasher assembly (15) and lead 57E (14) from heater assembly (8). Discard nut and lockwasher assembly (15). 6. Slide heater assembly (8) right and away from firewall (13) to allow heater inlet port (3) and outlet port (11) to clear grommet openings in firewall (13) and remove heater assembly (8). b. Installation 1. Install heater assembly (8) on firewall (13) and insert heater inlet port (3) and heater outlet port (11) through grommet openings in firewall (13). 2. Connect heater inlet hose (2) and heater outlet hose (12) to inlet port (3) and outlet port (11) and tighten two clamps (1). 3. Install lead 57E (14) on heater assembly (8) with nut and lockwasher assembly (15). 4. Connect harness lead 400D (9) to heater assembly lead (10). 5. Install heater assembly (8) on body (7) with four washers (5), capscrews (6), washers (5), and locknuts (4). Tighten locknuts (4) to 15 lb-ft (20 N•m). 6. Install heater boot (17) on heater assembly (8) with ten clips (16). TM 9-2320-387-24-2 10-130 Change 1