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1D – 24 COMPRESSOR OVERHAUL 6. Remove any excess oil resulting from installing the new seal parts from the shaft and inside the 7. Install the clutch plate and hub assembly as described previously. 8. Reinstall compressor belt and tighten bracket. 9. Evacuate and charge the refrigerant system. COMPRESSOR PRESSURE RELIEF VALVE Removal 1. Recover the refrigerant using Refrigerant Recovery System. 2. Remove old pressure relief valve. Installation 1. Clean valve seat area on rear head. 2. Lubricate O-ring of new pressure relief valve and O-ring assembly with new 525 viscosity refrigerant 3. Evacuate and recharge the system. 4. Leak test system. COMPRESSOR OIL Compressor Oil Check The oil used to lubricate the compressor is circulating Checking and Adjusting Oil Quantity for 1. Perform oil return operation. Refer to Oil Return Operation in this section. 2. Discharge and recover refrigerant and remove the compressor. 3. Drain the compressor oil and measure the extracted oil with a measuring cylinder. 4. If the amount of oil drained is much less than 90 cc (3.0 fl. oz.), some refrigerant may have leaked out. 5. Check the compressor oil contamination. (Refer to Contamination of Compressor Oil in this section.) 6. Adjust the oil level following the next procedure below. 7. Install the compressor, then evacuate, charge and perform the oil return operation. 8. Check system operation. When it is impossible to preform oil return 1. Discharge and recover refrigerant and remove the compressor. 2. Drain the compressor oil and measure the extracted oil with a measuring cylinder. 3. Check the oil for contamination. 4. If more than 90 cc (3.0 fl. oz.) of oil is extracted from the compressor, supply the same amount of oil to 5. Supply 90 cc (3.0 fl. oz.) of oil to the compressor and install it onto the vehicle. 6. Evacuate and recharge with the proper amount of refrigerant. 7. Perform the oil return operation. 8. Remove the compressor and recheck the amount of oil. 9. Adjust the compressor oil, if necessary. Checking and Adjusting for Compressor The oil is not charged in compressor (service parts). So (Oil Capacity) Capacity total in system 150 cc (5.0 fl.oz) Compressor (Service 150 cc (5.0 fl.oz) parts) charging amount (Collected Amount) (Charging Amount) more than 90 cc same as collected (3.0 fl.oz) amount less than 90 cc (3.0 fl.oz) 90 cc (3.0 fl.oz) (Collected Amount) (Charging Amount) more than 90 cc same as collected (3.0 fl.oz) amount less than 90 cc (3.0 fl.oz) 90 cc (3.0 fl.oz) |