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Refrigerant Line: Replacement

WARNING: This page is about a different car, the 2004 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
  1. DISCHARGE REFRIGERANT FROM REFRIGERATION SYSTEM 
  2. REPLACE FAULTY TUBE OR HOSE 
    NOTE: Cap the open fittings immediately to keep moisture or dirt out of the system. 
  3. TIGHTEN JOINT OF BOLT OR NUT TO SPECIFIED TORQUE 
    NOTE: Do not tighten the connections more than specified. 
    REFRIGERANT LINE TORQUE SPECIFICATIONS

    Part Tightened N.m kgf.cm ft.lbf
    Compressor at Discharge hose 10 100 7
    Compressor at Suction hose 10 100 7
    Condenser at Discharge hose 10 10 7
    Condenser at Liquid tube 10 100 7
    Rear cooling unit at Liquid and suction tubes 10 100 7
    Liquid line Nut 14 140 10
    Liquid line Bolt 10 100 7
    Discharge line Nut 22 225 16
    Suction line Nut 32 330 24
    Suction line Bolt 10 100 7
  4. EVACUATE AIR FROM REFRIGERATION SYSTEM AND CHARGE SYSTEM WITH REFRIGERANT 

    Specified amount: 1,050 +/- 50 g (37.03 +/- 1.76 oz.) 

  5. INSPECT FOR LEAKAGE OF REFRIGERANT 

    Using a gas leak detector, check for leaks of refrigerant

  6. INSPECT AIR CONDITIONING OPERATION 
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