OPERATOR’S STATION
Form 169552 / 169554 / 169555
26
Revision A
5.10 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.
5.10.1 CONTROLS
Refer to the following illustrations for an
explanation of the controls and operating
procedures.
IMPORTANT
To distribute the oil throughout the
system, perform the following steps
whenever the machine is first started after
storage for more than one week:
a. Ensure heater shut-off valve at engine is open.
See 5.10.3
Heater Shut-off Valve
.
b. Turn blower switch to the “first” position, turn
temperature control switch to maximum heating,
and A/C control to OFF.
c. Start engine, and operate at low idle until engine
is warm.
d. Click A/C switch from OFF to ON for one
second, then back to OFF for 5 to 10 seconds.
Repeat this step ten times.
5.10.2 AIR DISTRIBUTION
Cab air distribution is controlled through
adjustable air vents located in the cab posts as
shown above.
The vents provide window and Operator
ventilation.
5.10.3 HEATER SHUT-OFF VALVE
A shut-off valve 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.
OPEN
CLOSE
DIRECTION
TEMPERATURE CONTROL
Controls Cab Temperature
INCREASE - Clockwise
DECREASE - Counter Clockwise
BLOWER SWITCH
Controls Blower Speed
OFF / LOW / MEDIUM / HIGH
AIR CONDITIONING SWITCH
Controls A/C System
OFF - A/C Does Not Operate.
ON - A/C Operates With Blower
Switch On.
HEATER SHUT-OFF VALVE
OPEN - Counter Clockwise
CLOSE - Clockwise