11. EXPLANATION OF COMPONENTS 11.13.2 PRECAUTIONS WHEN USING AIR CONDITIONER CARRY OUT VENTILATION FROM TIME TO TIME WHEN USING THE COOLER. If you smoke when cooler is on, the smoke may start to hurt your eyes, so turn the lever to FRESH to remove the smoke while continuing the cooling. When running the air conditioner for a long time, turn the lever to the FRESH position once an hour to carry out ventilation and cooling. BE CAREFUL NOT TO MAKE THE TEMPERATURE IN THE CAB TOO LOW. When the cooler is on, set the temperature so that it feels slightly cool when entering the cab (5 – 6°C lower than the outside tempera- ture).
This temperature difference is considered to be the most suitable for your health, so always be careful to adjust the tempera- ture properly. DIRECTION OF VENTS WHEN COOLING If the vents (left and right) in the middle of the dashboard are turned so that cold air plays directly on the cab door glass, moisture may condense on the outside of the cab door glass and reduce the visibility. (This occurs particularly in outside high temperatures.) If this happens, turn the vent shutter selector lever to stop the air going directly to the glass and direct it upward.
REMARK If the vents at the front of the dashboard are turned so that cold air plays directly on the front glass, moisture may condense on the outside of the glass and reduce the visibility. (This occurs particu- larly in high temperatures.) If this happens, adjust the vent so that the air does not play directly on to the glass. 11.13.3 CHECKS DURING OFF-SEASON Even during the off-season, run the engine at low idling for several minutes every week and operate the compressor at low speed to maintain the oil film at all parts of the compressor.
(Run the engine at low speed and set the temperature control lever to the central position when doing this.) REMARK If the outside temperature is low and the compressor is suddenly run at high speed, it may cause failure of the compressor. The compressor is set so that if the outside temperature is below 2 – 6.5°C, it will not run even if the cooler switch is turned ON. 2-27