. OPERATION EXPLANATION OF COMPONENTS PRECAUTIONS WHEN USING AIR CONDITIONER To prevent putting any excessive load on the engine or compressor, turn the air conditioner ON only when the engine is running. fresh air before starting the air conditioner. If you smoke when using the cooling, your eyes may sting. If this happens, switch temporarily to cooling and ventilation to remove the smoke.
INSPECTION AND MAINTENANCE 3 - 62 Carry out ventilation from time to time when using the coolin When turning the co oling on, if the temperature ins ide the cab igh, o pen th e door window s to brin g in When using the air c onditioner for a long time, carr y out ventilation and cooling once every Be careful not to cool the For reasons of health, t he optimum setting for cooling is considered t o be w hen it feels s lightly cool (5 or 6°C ( 9 or 10.8°F) lower than the a mbient temperature) when yo u enter the cab. Do n ot mak e the t emperature ins ide the cab too low or direct the air flow directly onto your skin.
Be extremely careful to select the appropriate temper When cooling is not being used (off-season) To prevent leakage of t he refrigerant from the air cond itioner cooling circuit , oper ate the air conditioner for several minutes 2 or 3 times a month during the off-season. If the air conditioner is left for a long time when the refrigerant is leaking, it may cause internal rust. Even when not using t he air conditioner, run the co mpressor a t low spee d for several minutes once a wee k to prevent the loss of the oil film at various parts of th er to the central position.) e compressor.
(Run the engine at low speed and set the (Run the temperature control lev When cleaning the air c onditioner air filter or checking the refrigerant level, see " CLEAN AIR CONDITIONER AIR FILTER (PAGE 4-33)" and "CHECK REFRIGERANT (GAS) LEVEL (PAG E 4-34 )" for d etails. To enable the air condit ioner to perform to the full and to maintain a pl easan t work ing environment, alw ays contact your Komatsu distributo r to have the air conditioner re filled with r efrigerant and to carry out other chec