TM 9-2350-247-20-3
REPLACE VEHICLE COMPARTMENT HEATER CONTROL BOX Continued
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INSTALLATION
NOTE
Installation of heater control box is similar for M548A1 and M548A3. Differences are noted in
steps.
1.
Install bracket (1), two screws (2), and new lock nuts (3) on hull (M548A3).
2.
Install heater control box (4), two mounts (5), mounts (6), washers (7), and new lock nuts (8) on bracket (1) (M548A3).
3.
Install heater control box (4), two mounts (5), washers (7), and new lock nuts (8) on hull (M548A1).
4.
Install ground lead (9) on heater control box (4) with two new lock washers (10) and screw (11).
5.
Connect wiring harness (12) to receptacle (13) on heater control box (4).
6.
Connect circuit 400D lead (14) to heater control box lead (15).
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