Refrigerant Replacement

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Heating Air Conditioning. Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM

  2. CHARGE REFRIGERANT

  3. WARM UP ENGINE

  4. CHECK FOR REFRIGERANT GAS LEAK

Refrigerant -- Replacement



1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM

  1. Start the engine.

  1. Turn the A/C switch on.

  1. Operate the cooler compressor while the engine speed is approximately 1000 rpm for 5 to 6 minutes to circulate the refrigerant and collect the compressor oil remaining in each component into the cooler compressor.

  1. Stop the engine.

  1. Recover the refrigerant from the A/C system using a refrigerant recovery unit.



2. CHARGE REFRIGERANT
SST
09985-20010(09985-02130,09985-02150,09985-02090,09985-02110,09985-02010,09985-02050,09985-02060,09985-02070)

  1. Perform vacuum purging using a vacuum pump.



  1. Charge refrigerant HFC-134a (R134a).

    Standard:
    Condenser Core Thickness
    		Air Conditioning Type
    		Cool Box
    		Refrigerant Charging Amount
    22 mm (0.866 in.)
    		w/o Rear Cooler
    		w/ Cool Box
    		870 +/-50 g (30.7 +/-1.76 oz.)
    w/o Cool Box
    		870 +/-50 g (30.7 +/-1.76 oz.)
    w/ Rear Cooler
    		w/ Cool Box
    		1010 +/-50 g (35.6 +/-1.76 oz.)
    w/o Cool Box
    		970 +/-50 g (34.2 +/-1.76 oz.)
    16 mm (0.630 in.)
    		w/o Rear Cooler
    		w/ Cool Box
    		770 +/-50 g (27.2 +/-1.76 oz.)
    w/o Cool Box
    		770 +/-50 g (27.2 +/-1.76 oz.)
    w/ Rear Cooler
    		w/ Cool Box
    		970 +/-50 g (34.2 +/-1.76 oz.)
    w/o Cool Box
    		920 +/-50 g (32.5 +/-1.76 oz.)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Refrigerant Replacement

    NOTICE:
    1. Do not operate the cooler compressor before charging refrigerant as the cooler compressor will not work properly without any refrigerant, and will overheat.
    2. Approximately 100g (3.53 oz.) of refrigerant may need to be charged after bubbles disappear. The refrigerant amount should be checked by measuring its quantity, and not with the sight glass.


3. WARM UP ENGINE

  1. Warm up the engine at less than 1850 rpm for 2 minutes or more after charging the refrigerant.

    NOTICE:
    Be sure to warm up the compressor when turning the A/C switch is on after removing and installing the cooler refrigerant lines (including the compressor), to prevent damage to the compressor.


4. CHECK FOR REFRIGERANT GAS LEAK

  1. After recharging the refrigerant gas, check for refrigerant gas leakage using a halogen leak detector.

  1. Perform the operation under these conditions:

    1. Stop the engine.
    2. Secure good ventilation (the halogen leak detector may react to volatile gases other than refrigerant, such as evaporated gasoline or exhaust gas).
    3. Repeat the test 2 or 3 times.
    4. Make sure that some refrigerant remains in the refrigeration system. When compressor is off: approximately 392 to 588 kPa (4.0 to 6.0 kgf/cm2, 57 to 85 psi).


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Refrigerant Replacement

  1. Using a halogen leak detector, check the refrigerant line for leakage.

  1. If a gas leak is not detected on the drain hose, remove the blower motor control (blower resistor) from the cooling unit. Insert the halogen leak detector sensor into the unit and perform the test.

  1. Disconnect the connector and wait for approximately 20 minutes. Bring the halogen leak detector close to the pressure switch and perform the test.