Compressor HVAC: Service and Repair
Compressor And Magnetic Clutch (For 1GR-FE):
COMPRESSOR AND MAGNETIC CLUTCH (FOR 1GR-FE)
REMOVAL
1. DISCHARGE REFRIGERANT FROM REFRIGERATION SYSTEM
2. REMOVE FENDER APRON MUDGUARD SEAL LH
a. Remove the 6 clips and seal.
3. REMOVE FAN AND GENERATOR V BELT
4. DISCONNECT DISCHARGE HOSE
a. Remove the bolt and disconnect the cooler refrigerant discharge hose from the cooler compressor.
b. Remove the O-ring from the cooler refrigerant discharge hose.
NOTE: Seal the openings of the disconnected parts using vinyl tape to prevent moisture and foreign matter from entering them.
5. DISCONNECT SUCTION HOSE
a. Remove the bolt and disconnect the cooler refrigerant suction hose from the cooler compressor.
b. Remove the O-ring from the cooler refrigerant suction hose.
NOTE: Seal the openings of the disconnected parts using vinyl tape to prevent moisture and foreign matter from entering them.
6. REMOVE COOLER COMPRESSOR ASSEMBLY
a. Disconnect the connector.
b. Remove the 2 bolts and 2 nuts.
c. Remove the 2 stud bolts and cooler compressor.
INSTALLATION
1. ADJUST COMPRESSOR OIL
a. When replacing the compressor and magnetic clutch with a new one, gradually discharge the refrigerant gas from the service valve, and drain the following amount of oil from the new compressor and magnetic clutch before installation.
Standard:
(Oil capacity inside the new compressor and magnetic clutch: 130 + 15 cc (4.6 + 0.51 fl.oz.)) - (Remaining oil amount in the removed compressor and magnetic clutch) = (Oil amount to be removed from the new compressor when replacing)
NOTE:
- When checking the compressor oil level, follow the A/C system's precautions.
- If a new compressor and magnetic clutch is installed without removing some oil remaining in the pipes of the vehicle, the oil amount will be too large. This prevents heat exchange in the refrigerant cycle and causes refrigerant failure.
- If the volume of oil remaining in the removed compressor and magnetic clutch is too small, check for oil leakage.
- Be sure to use ND-OIL 8 or equivalent for compressor oil.
2. INSTALL COOLER COMPRESSOR ASSEMBLY
a. Install the cooler compressor with the 2 stud bolts.
Torque: 10 N.m (102 kgf.cm, 7 ft.lbf)
b. Install the 2 bolts and 2 nuts.
Torque: 24.5 N.m (250 kgf.cm, 18 ft.lbf)
NOTE: Tighten the bolts in the order shown in the illustration to install the cooler compressor.
3. CONNECT SUCTION HOSE
a. Remove the attached vinyl tape from the hose.
b. Sufficiently apply compressor oil to a new O-ring and the fitting surface of the cooler compressor.
Compressor oil: ND-OIL 8 or equivalent
c. Install the O-ring on the cooler refrigerant suction hose.
d. Connect the cooler refrigerant suction hose on the cooler compressor with the bolt.
Torque: 9.8 N.m (100 kgf.cm, 87 in.lbf)
4. CONNECT DISCHARGE HOSE
a. Remove the attached vinyl tape from the hose.
b. Sufficiently apply compressor oil to a new O-ring and the fitting surface of the cooler compressor.
Compressor oil: ND-OIL 8 or equivalent
c. Install the O-ring on the cooler refrigerant discharge hose.
d. Connect the cooler refrigerant discharge hose on the cooler compressor with the bolt.
Torque: 9.8 N.m (100 kgf.cm, 87 in.lbf)
5. INSTALL FAN AND GENERATOR V BELT
6. INSTALL FENDER APRON MUDGUARD SEAL LH
a. Install the seal with the 6 clips.
7. CHARGE REFRIGERANT
8. WARM UP ENGINE
9. CHECK FOR REFRIGERANT GAS LEAK