LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2002 >> 4Runner Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning >> Air Conditioning System >> Evacuating

Air Conditioning System: Evacuating

  1. Connect Quick Disconnect Adapter To Charging Hoses 
    Fig 1: Connecting Quick Disconnect Adapter
    G01025194Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Remove Caps From Service Valves On Refrigerant Lines 
  3. Set On Manifold Gauge Set 
    1. Close both hand valves of manifold gauge set.
    2. Connect the quick disconnect adapters to the service valves.
  4. Evacuate Air From Refrigeration System 
    1. Connect the vacuum pump adapter to the vacuum pump.
      Fig 2: Connecting Vacuum Pump To Vacuum Pump Adapter
      G01025195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the center hose of the manifold gauge set to the vacuum pump adapter.
      Fig 3: Connecting Center Hose To Vacuum Pump Adapter
      G01025196Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Open both the high and low hand valves and run the vacuum pump.
    4. After 10 minutes or more, check that the low pressure gauge indicates 750 mmHg (30 in. Hg) or more.
      NOTE: If the gauge reads 750 mmHg (30 in. Hg) or more, close both hand valves of manifold gauge set and stop the vacuum pump. Check the system for leaks and repair as necessary.
    5. Close both the high and low hand valves and stop the vacuum pump.
    6. Leave the system in this condition for 5 minutes or more and check that there is no indication of air on the gauge.
scientia non olet · About LEMON Manuals