MacDon M155 Operators Manual - Manual (Page 71)

OPERATOR’S STATION
3.10 Cab Temperature
The cab environment is controlled by a climate control system that provides clean air-conditioned or heated air for
the Operator.
The heater/evaporator/blower assembly is located under the cab floorboard and is accessible from beneath
the windrower.
3.10.1 Heater Shut-Off
A shut-off valve (A) at the engine allows the cab heater to
be isolated from the engine coolant.
The valve must be OPEN to provide heat to the cab, but for
maximum cooling, the valve can be CLOSED.
Figure 3.31: Heater Shut-Off Valve
3.10.2 Air Distribution
Cab air distribution is controlled through adjustable air
vents (A) located in the cab posts. The vents provide
window and Operator ventilation.
Figure 3.32: Adjustable Air Vents
A - Vent B - Open/Close C - Direction
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