HEATER CONTROL BOX ASSEMBLY REMOVAL AND REPLACEMENT.

TM 9-2320-211-20-3-2

21-9. HEATER CONTROL BOX ASSEMBLY REMOVAL AND REPLACEMENT.

NOTE

This task is the same for personnel heater con-

trol box and engine heater control box. Engine

heater control box is under right side of instru-

ment panel and personnel heater control box is

under left side of instrument panel.

TOOLS: Flat-tip screwdriver

7/16-inch wrench (2)

SUPPLIES: None

PERSONNEL: One

EQUIPMENT CONDITION: Truck parked, engine off, handbrake set.

a. Removal.

FRAME 1

Unplug electrical sockets (1).

Unscrew and unplug electrical connector (2).

Using screwdriver, unscrew and take out two screws (3).

Slide out control box panel (4).

Using 7/16-inch wrenches, unscrew and take out two cap screws (5) with

lockwashers (6) and nuts (7) with washers (8).

6. Take out control box case assembly (9).

END OF TASK