b. Installation
TM 9-2320-280-20-3
12-41. ARCTIC HEATER ASSEMBLY REPLACEMENT (Cont’d)
1.
2.
3.
4.
5.
6.
7.
8.
Install heater assembly (4) and exhaust pipe (2) on mounting bracket assemblies (5) with two
clamps (6) finger tight.
Align heater assembly outlet port (1) with plenum assembly input port (9) and exhaust pipe (2) with
cowl flange (3). Install heater assembly (4) on plenum assembly input port (9) with setscrew (8).
Connect electrical connector (7) to heater assembly (4).
Tighten two clamps (6).
Install elbow (11) on exhaust pipe elbow (14) with cotter pin (12).
Install thermaseal (10) on exhaust pipe (2).
Install elbow (11) on cowl (18) with four locknuts (13).
Install dust unloader cover plate (15) on air cleaner bracket (17) with three capscrews (16).
FOLLOW-ON TASKS: • Install arctic heater fuel filter (para. 12-27).
• Install arctic heater filter-to-heater fuel supply hose (para. 12-35).
• Install heater boot (para. 10-96).
12-60
