5-8
COMFORT AND CONVENIENCE
3. Temperature control knob
[Heater or Air Conditioner]
Use this knob to select the preferred
cab interior temperature. Turn the
knob counterclockwise to lower the
outlet air temperature and clockwise
to raise it.
[Cooler]
Use this knob to select the preferred
cab interior temperature. Turn the
knob the way counterclockwise
to minimize cooler operation. And
turn the knob the way clockwise to
maximize cooler operation.
2. Air source lever
NOTE
Extended use of the inside air recirculation position causes the windshield and
windows to fog up easily, making visibility poor.
•
Lever
position
Purpose
Outside air
ventilation
Use this position to ventilate cab interior. (This
position should be normally selected.)
Inside air
recirculation
Use this position to prevent dusty or otherwise
contaminated outside air from entering the cab. (such
as in a tunnel or in congested traffic.)
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