HOT WATER PERSONNEL HEATER FUNCTIONAL TEST.

TM 9-2320-211-34-2-4

HOT WATER PERSONNEL HEATER FUNCTIONAL TEST.

19-4.

N o special tools required

TOOLS:

None

SUPPLIES:

One

PERSONNEL:

E Q U I P M E N T CONDITION: Truck parked, engine off, handbrake set.

FRAME 1

S t a r t engine and bring to normal operating temperature. Refer to

T M 9-2320-211-10.

CAUTION

In very cold weather, do not pull out DEFROSTER knob

( 1 ) until cab is warm. S u d d e n changes in temperature

c a n damage windshield.

P u l l out AIR knob (2).

S e t HEATER switch (3) to LO position.

V e r y warm air should be felt coming out of diverter (4). Set HEATER switch

(3) to HI position. Air from diverter should now be coming out faster.

P u l l out DEFROSTER knob (1). Warm air should be coming from four

deflectors (5).

P u s h in DEFROSTER knob and AIR knob (2). Little or no air should be felt

from diverter (4) or deflectors (5).

S e t HEATER switch (3) to OFF position. Stop engine. Refer to

T M 9-2320-211-10.

END OF TASK