11. EXPLANATION OF COMPONENTS 11.11.3 PRECAUTIONS WHEN USING AIR CONDITIONER Carry out ventilation from time to time when using the cooling. If you smoke when using the cooling, your eyes may start to sting, so in such a case, carry out ventilation and cooling for a short time to remove the smoke. When using the air conditioner for a long time, carry out venti- lation and cooling once every hour. Be careful not to cool the cab too much. When cooling, it is said to be best for the health if it feels slightly cool (5 or 6°C lower than the outside temperature) when you enter the cab. Be careful to adjust the temperature to a suitable level.
11.11.4 INSPECTION AND MAINTENANCE When the air conditioner is not being used, run the compressor at low speed for several minutes once a week to ensure that the oil film at various parts of the compressor is not lost. (Run the engine at low speed and set the temperature control lever to the medium position.) Clean the air filter and check the refrigerant. For details, see WHEN REQUIRED. To allow the air conditioner to display its full ability and provide a pleasant environment, always contact your Komatsu distributor to carry out refilling of the refrigerant and other inspection and main- tenance. 2-43