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    Drvines's Avatar
    Drvines Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Mar 21, 2010, 09:33 AM
    Underloader valves
    I have a 3600 psi Devilbiss powerwasher. It will start but shuts down within 10-15 seconds. When you try to restart there is a lot of back pressure which will not allow you to start the unit. If the pressure is released at the gun, it will start briefly and stop. I have taken the underloader apart and the piston that slides back and forth does not move freely. Should I be replacing the underloader valve if I can find a match on line?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Mar 21, 2010, 07:25 PM

    Yep, sounds reasonable.
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