TM-9-2320-341-10

TRUCK, TRACTOR, LIGHT EQUIPMENT TRANSPORTER (LET), 8X8 M983A4 LET

TECHNICAL MANUAL; OPERATOR'S MANUAL

OCTOBER 2008

TM-9-2320-341-10 - Page 857 of 962

OPERATOR MAINTENANCE

CLOSE/OPEN HEATER VALVES

INITIAL SETUP:

Equipment Condition

Engine OFF. (WP 0057)

Wheels chocked. (WP 0072)

Open passenger side engine cover.

(WP 0143)

CLOSE HEATER VALVES

NOTE

•

Closing two heater valves will improve the efficiency of the cabin air

conditioning.

•

Closing two heater valves will disable cabin heat.

•

Heater valve knob is located on rear passenger side of engine.

1.

Turn heater valve knob (1) counterclockwise to close.

1

Figure 1.

NOTE

Heater valve knob is located towards bottom of front passenger side of

engine.

TM 9-2320-341-10

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