TM 5-3805-290-10
DESCRIPTION AND USE OF OPERATOR CONTROLS AND INDICATORS - CONTINUED
0004 00
SEAT CONTROLS - CONTINUED
5.
Seat Belt.
a.
Pull seat belt all the way out of retractor and
press seat belt tab into buckle until it locks.
b.
Ensure seat belt is snug across lap.
427-B0531-A
0004 00
HEATING AND AIR CONDITIONING (AC) CONTROLS
1.
General. Heater and AC controls perform four functions: heating, cooling, pressurizing cab (when heating or cooling is
not desired) to keep dust out of cab, and defogging/defrosting windshields.
2.
Heater/AC Controls.
a.
Temperature Control Switch. Turn switch to desired temperature. All the way clockwise (to the right) is coldest.
All the way counterclockwise (to the left) is warmest.
b.
Blower Switch. Three-position rocker switch controls speed of blower fan:
(1)
Press bottom of switch (I) for LOW speed.
(2)
Middle switch position (II) is MEDIUM speed.
(3)
Press top of switch (III) for HIGH speed.
c.
Heater/AC Switch. Three-position rocker
switch controls ON/OFF of heater and air condi-
tioning:
(1)
Press bottom of switch to turn AC ON.
(2)
Middle switch position is OFF.
(3)
Press top of switch to turn heater ON.
d.
Rear Window Defrost Switch.
(1)
Press top of rear window defrost switch
to activate rear window defroster.
(2)
Rear window defrost switch is on a
timer. It will turn off automatically after
timer expires.
427-B0527E