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
