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2006 Kenworth w900 air con charge, help

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Legonch, Jan 1, 2024.

  1. Jan 1, 2024 #1
    Legonch

    Legonch Bobtail Member

    14
    7
    Nov 12, 2023
    0
    Have the above mentioned truck. We replaced the air conditioning compressor and a few lines. How do you jump the compressor to get it to suck freon? I cant find a low pressure cut off switch at all. I did find a high pressure cutoff switch, and another one right beside it, its color is brown. System will hold vacuum, but wont engage the compressor clutch now that it is out of freon. TIA
     
    Legonch, Jan 1, 2024
    Legonch, Jan 1, 2024
    #1
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  3. Jan 1, 2024 #2
    Star Rider

    Star Rider Road Train Member

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    Sep 23, 2019
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    You should be able to just shoot some freon in there and it will raise the pressure enough to kick on the compressor. It will short cycle for a bit until more pressure builds.
     
    Star Rider, Jan 1, 2024
    Star Rider, Jan 1, 2024
    #2
    Legonch and Diesel Dave Thank this.
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