2004款丰田卡罗拉发动机暖风与空调系统维修手册(英文版) 55–1 HEATER AIR CONDITIONER – AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM 550IN–01 PRECAUTION 1 DO NOT HANDLE REFRIGERANT IN AN ENCLOSED AREA OR NEAR AN OPEN FLAME 2 ALWAYS WEAR EYE PROTECTION AC2810 3 BE CAREFUL NOT TO GET LIQUID REFRIGERANT IN YOUR EYES OR ON YOUR SKIN If liquid refrigerant gets in your eyes or on your skin a Wash the area with lots of cool water CAUTION Do not rub your eyes or skin b Apply clean petroleum jelly to the skin c Go immediately to a physician or hospital for professional AC2811 treatment 4 NEVER HEAT CONTAINER OR EXPOSE IT TO NAKED FLAME 5 BE CAREFUL NOT TO DROP CONTAINER AND NOT TO APPLY PHYSICAL SHOCKS TO IT 6 DO NOT PRESSOR WITHOUT Wrong Okay ENOUGH REFRIGERANT IN REFRIGERANT SYSTEM If there is not enough refrigerant in the refrigerant system oil lu- LO HI LO HI brication will be insufficient pressor burnout may occur so take care to avoid this necessary care should be taken 7 DO NOT OPEN HIGH PRESSURE MANIFOLD VALVE PRESSOR IS OPERATING If the high pressure valves opened refrigerant flows in the re- N11084 verse direction and could cause the charging cylinder to rup- ture so open and close the only low pressure valve 8 BE CAREFUL NOT TO OVERCHARGE SYSTEM WITH REFRIGERANT If refrigerant is overcharged it causes problems such as insuffi- cient cooling poor fuel economy engine overheating etc 2004 COROLLA RM1037U 1571 55–2 HEATER AIR CONDITIONER – AIR CONDITIONING SYSTEM 550IO–01 ON–VEHICLE INSPECTION 1 INSPECT PRESSURE SWITCH NO1 1 a ic clutch control Inspect pressure switch operation 2 3 1 Set on the manifold gauge set 2 Connect the positive lead from the ohmmeter to terminal 4 and the negative – lead to terminal 1 4 3 Check continuity between terminals when refriger- Low pressure side High pressure side ant pressure is changed as shown in the illust
