AIR CONDITIONER ATTACHMENTS AND OPTIONS AIR CONDITIONER MAINTENANCE 0. When Required 0. Refrigerant (Gas) Level - Check 0. If the refrigerant used in the cooler gets into your eyes or on your hands, it may cause loss of sight or frostbite. Do not touch the refrigerant. Never loosen any part of the refrigerant circuit. Do not bring any flame close to any point where the refrigerant gas is leaking. will be poor. When operating the cooler at high speed with the engine at full throttle, use the receiver sight glass (inspection window) to check the condition of the refrigerant gas (Freon R134a) flowing in the refrigerant circuit. No bubbles in refrigerant flow:
Suitable Some bubbles in flow (bubbles pass continuously): Lack of refrigerant Colorless, transparent: No refrigerant REMARK When there are bubbles, the refrigerant gas level is low, so contact your refrigerant dealer to have refriger- ant added. If the air conditioner is run with the refrigerant gas level low, it will cause damage to the com- pressor. Off Season Checks 0. Even during the off-season, run the compressor at low speed for 3 to 5 minutes once a month to prevent the loss of the oil film at the lubricated parts of the compressor. Inspection and Maintenance Items 0.
6-8 WARNING Check, maintenance items Content of check, maintenance Guideline for maintenanc interval Refrigerant (gas) Charge amount Twice a year (spring, autum Condenser Clogged fins Every 500 hours Compressor Operating condition Every 4000 hours V-belt Damage, tension Every 250 hours Blower motor, fan Operating condition (does it When required make abnormal noise?) When required Control mechanism Operating condition (does it function normally?) When required Piping mounts Mounting condition, looseness at tightening or connecting portions, leakage of gas, damage When required