OPERATOR’S STATION
Form # 169017
22
Issue – June 2008
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 tractor.
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:
1. Turn blower switch to the first position, turn
temperature control switch to maximum
heating, and A/C control to “OFF”.
2. Start engine and operate at low idle until
engine is warm.
3. 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. They are located in the cab
posts to provide window and operator ventilation
as shown in illustration.
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.
OUTSIDE AIR SWITCH
Controls Air Source
FRESH AIR – Starts Booster Fan &
Filtered Outside Air Drawn Into Cab
RECIRCULATE – Stops Booster Fan &
Cab Air Is Recirculated.
AIR CONDITIONING SWITCH
Controls A/C System
OFF - A/C Does Not Operate.
ON - A/C Operates With Blower
Switch On.
TEMPERATURE CONTROL
Controls Cab Temperature
INCREASE – Clockwise
DECREASE - Counter-Clockwise
BLOWER SWITCH
Controls Blower Speed
OFF/LO/MEDIUM/HI
OPEN
CLOSE
DIRECTION
HEATER SHUT-OFF VALVE
OPEN – Counterclockwise
CLOSE - Clockwise
M200
M150