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Home >> Lexus >> 2019 >> GX 460 Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning System (Service Information) >> Compressor >> Installation [08/2015 - 08/2020] >> Procedure

Installation [08/2015 - 08/2020]: Procedure

  1. ADJUST COMPRESSOR OIL 
    1. When replacing the cooler compressor with a new one, gradually discharge the refrigerant gas from the service valve, and then drain the following amount of oil from the new cooler compressor before installation.

      Standard

      (Oil capacity inside the new cooler compressor: 135 + 15 cc (4.57 + 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 precautions.
      • If a new cooler compressor 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 cooler compressor is too small, check for oil leakage.
      • Be sure to use ND-OIL 8 or equivalent for compressor oil.
  2. INSTALL COOLER COMPRESSOR ASSEMBLY 
    GTY265413Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Install the stud bolt.

      Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) 

    2. Temporarily install the cooler compressor assembly with the 3 bolts and nut.
    3. Tighten the 3 bolts and nut in the sequence shown in the illustration.

      for bolt 

      Torque: 25 N*m (255 kgf*cm, 18 ft.*lbf) 

      for nut 

      Torque: 25 N*m (255 kgf*cm, 18 ft.*lbf) 

    4. Connect the connector.
  3. CONNECT SUCTION HOSE SUB-ASSEMBLY 
    1. Remove the attached vinyl tape from the hose.
    2. Sufficiently apply compressor oil to a new O-ring and the fitting surface of the cooler compressor.

      Compressor oil

      ND-OIL 8 or equivalent

    3. Install the O-ring to the suction hose.
    4. Connect the suction hose to the cooler compressor with the 2 bolts.
      GTY678582Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      for bolt A 

      Torque: 7.8 N*m (80 kgf*cm, 69 in.*lbf) 

      for bolt B 

      Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf) 

  4. CONNECT DISCHARGE HOSE SUB-ASSEMBLY 
    1. Remove the attached vinyl tape from the hose.
    2. Sufficiently apply compressor oil to a new O-ring and the fitting surface of the cooler compressor.

      Compressor oil

      ND-OIL 8 or equivalent

    3. Install the O-ring to the discharge hose.
    4. Connect the discharge hose to the cooler compressor with the bolt.
      GTY634052Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      for bolt A 

      Torque: 7.8 N*m (80 kgf*cm, 69 in.*lbf) 

      for bolt B 

      Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf) 

  5. INSTALL FAN SHROUD 

    Refer to PROCEDURE - Step 10

  6. INSTALL NO. 1 RADIATOR HOSE 

    Refer to PROCEDURE - Step 11

  7. INSTALL RADIATOR RESERVOIR ASSEMBLY 

    Refer to PROCEDURE - Step 12

  8. INSTALL FRONT FENDER APRON SEAL LH 

    Refer to PROCEDURE - Step 85

  9. INSTALL REAR ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 86

  10. INSTALL TRANSMISSION UNDER COVER 

    Refer to PROCEDURE - Step 87

  11. INSTALL NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 88

  12. INSTALL LOWER FRONT BUMPER COVER 

    Refer to PROCEDURE - Step 89

  13. ADD ENGINE COOLANT 

    Refer to PROCEDURE - Step 6

  14. INSTALL FAN AND GENERATOR V BELT 
    1. Install the fan and generator V belt (Refer to INSTALLATION [08/2015 - ] ).
  15. CHECK FOR COOLANT LEAK 

    Refer to PROCEDURE - Step 1

  16. CHARGE REFRIGERANT 

    See step  2

  17. WARM UP ENGINE 

    See step  3

  18. CHECK FOR REFRIGERANT GAS LEAK 

    See step  4