7. Task-Oriented Procedures
49
2. Adjust the blower fan speed as needed. For low speed, press the blow fan switch down half way.
For high speed, press the switch down all the way.
Note: The ventilation system operates in two modes: supplying fresh air and air
recirculation. By default, the ventilation system supplies fresh air into the cab.
3. If needed, change fresh air supply mode to recirculation by turning the air supply knob counter-
clockwise.
4. Adjust the air nozzles for air direction and flow level:
l two nozzles on the front right side of the cab
l left and right dashboard nozzles
To air-condition the cab:
1. Ensure that the air-conditioner (AC) is installed on the tractor.
2. Turn the AC switch on. The AC switch illuminates indicating that the AC system is on.
3. Adjust the cooling temperature with the AC dial.
Note: If you have not used the air conditioner for more than 30 days, run it for at least two
minutes to ensure that the AC system is working.
Preheating engine oil
This procedure provides instructions on how to preheat engine oil before starting the engine in case of
low outside temperatures.-20°C/-4°F (?). Engine oil preheating is a special optional feature available
only if the corresponding equipment is installed on the tractor.
To preheat engine oil:
1. Locate the electric plug (term?) mounted on the left rear side of the tractor.
2. Using an electric extension cord (?), plug the female connector into the tractor-mounted plug and
the male (?) connector into ? 110 V AC voltage (?)
Caution: Connect an extension cord only to a ground fault circuit interrupter (GFCI) plug.
3. After the warm-up phase (?), unplug the extension cord from the tractor and cover the tractor-
mounted plug with the protective cap.
Opening roof hatch
This procedure provides instructions on how to open the roof.
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