Air Conditioning: Refrigerant: Replacement

RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM
1. Turn the A/C switch to ON.
2. Operating the cooler compressor at the engine rpm of approx.. 1,000 for 5 to 6 minutes, circulate the refrigerant and collect the compressor oil remaining in each component into the cooler compressor as much as possible.
3. Stop the engine.
4. Recover the refrigerant from the A/C system using a refrigerant recovery unit.
CHARGE REFRIGERANT
1. Using a vacuum pump, perform a vacuum purging.
2. Charge refrigerant, HFC-134a (R134a).
  Standard:
  
  780 +- 30 g (27.5 +-1.06 oz.)
  
  SST 07110-58060 (07117-58060, 07117-58070, 07117-58080, 07117-58090, 07117-78050, 07117-88060, 07117-88070, 07117-88080)
  
  Fig 1: Charge Refrigerant Amount Graph
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
WARM UP ENGINE
INSPECT REFRIGERANT LEAK
1. Using a gas leak detector, check for leakage of the refrigerant.