Subaru Tribeca 2006

Charging the System

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  1. Close the valves on low/high pressure sides of the manifold gauge.
  2.  
  3. Install the low/high pressure hoses to the corresponding service ports on the vehicle.
  4.  
  5. Connect the center hose of the manifold gauge set with the vacuum pump.
  6.  
  7. Carefully open the valves on the low-/high-pressure sides to activate the vacuum pump.
  8.  
  9. After the low pressure gauge reaches 29.5 in. Hg. (100.0 kPa) or higher, evacuate the system for approx. 15 minutes. (Continue evacuation).
  10.  
  11. After 15 minutes of evacuation, if the reading shows 29.5 in. Hg. (100.0 kPa) or higher, close the valves on the both sides to stop the vacuum pump.
  12.  
  13. Note the low-pressure gauge reading.
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  15. Leave it at least 5 minutes, and then check the low-pressure gauge reading for any changes.
  16.  
  17. If the gauge indicator shows near zero point, it is a sign of leakage. Check pipe connector points, repair them, and make sure there is no leakage.
  18.  
  19. Follow the can tap operation manual, install to the refrigerant can.
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  21. Disconnect the center manifold hose from the vacuum pump, and connect the hose to the tap valve.
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  23. When a 30 lbs. (13.6 kg) refrigerant container is used, measure the weight of the refrigerant amount to use using a scale.
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  25. Confirm that all the 3 hoses are connected securely to the manifold gauge set.
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  27. Open the valve on the HFC-134a source.
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  29. Loosen the center hose connection on the manifold gauge set (if applicable, press a purge valve on the manifold gauge set) for a few seconds to allow the air in the center hose to escape by the refrigerant pressure.
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  31. Stop the engine and carefully open the high-pressure valve.
    CAUTION
    Do not open the low-pressure valve.


    CAUTION
    Never run the engine while charging from the high-pressure side.

  32.  
  33. Close the high-pressure valve when the low-pressure gauge reaches 14 psi (98 kPa). Using a leak tester, check the system for leaks. If any leakage is found after the refrigerant recovery is completed, repair the applicable area.
  34.  
  35. After confirming that there are no leaks with the leak test, charge the required amount of refrigerant.
    CAUTION
    Never run the engine while charging from the high-pressure side.

  36.  
  37. Close the high-pressure valve when;

    the readings of low- / high-pressure gauges become almost equal, after the charging speed is reduced
     
    the HFC-134a source becomes empty, or the system is full with the gas
     

  38.  
  39. If the HFC-134a source is empty, close the high-pressure valve, close the valve on the can tap, and replace the HFC-134a source with a new one to restart the operation.
  40.  
  41. Confirm that both the low- / high-pressure valves can be closed. Start the engine with the A/C switch OFF.
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  43. Quickly repeat ON-OFF cycles a few times to prevent initial compressor damage.
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  45. Set up the vehicle as follows:

    A/C switch ON
     
    Engine running at 1,500 rpm
     
    Blower setting speed -HI-, (For models with rear coolers, also turn the rear cooler fan switch to -HI-)
     
    Temperature setting to -MAX COOL-
     
    Air inlet setting to -RECIRC-
     
    Window open
     

  46.  
  47. While reading the low-pressure gauge, carefully open the low-pressure valve with the refrigerant source connected and the service hose purged.
    CAUTION
    Never open the high-pressure valve with the engine running. The high-pressure gas will back-flow resulting in an explosion of the can.

  48.  
  49. Adjust the refrigerant flow to maintain the pressure on the low-pressure side at 40 psi (276 kPa) max.
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  51. After the system is fully charged, close the low-pressure valve.
  52.  
  53. Close the valve on the refrigerant source.
  54.  
  55. Disconnect the hose from the service port, and install the service port cap.
  56.  

 
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