K1000896E Operation and Maintenance Manual Operating Controls 2-43
B. Used to direct air flow to lower
portion of operator's cab.
C. Used to direct air flow for defrosting
front window of operator's cab.
5. VENTILATION SELECTOR SWITCH
A. "A" Switch - Draws fresh air into
operator's compartment.
B. "B" Switch - Recirculates air within
the operator's compartment. Used to
rapidly reduce condensation on
windows.
HBOI330L
Figure 86
HBOI340L
Figure 87
HAOC981L
AB
Figure 88