154 INSTRUMENTS AND CONTROLS
Fresh Air Vent
A. Closed
B. Open
C. Vertical Air Flow
D. Lateral Air Flow
T0008094
When heating the cab, all vents should be closed. However, the vents on the outer parts
of the dash can be used for defrosting the cab door windows. When operating the air
conditioning, all air vents should be completely open and the air flow directed upward.
DANGER
DO NOT breathe the engine exhaust
gas. It contains carbon monoxide, which
has no color or odor. Carbon monoxide
is a dangerous gas which can cause
unconsciousness or death.