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  1. #1
    Join Date
    May 2003
    Posts
    77
    Was asked to look at a hydraulic assist revolving door. After getting power to hydraulic unit it waould only produce about 100 psi checked with 2 gauges. Motor amps are low. Tried plugging all ports to isolate hyd. unit and still would only pump 100 psi. I don't know what normal operating pressure is supposed to be, but gauge on unit goes to 2000 psi and hyd. lines are rated to 2750 psi. I'm thinking 100 is way to low with only 1/4 lines and a huge, heavy door to move. I'm thinking pump is weak and would like to remove and tear down, figure I'd see if anyone here has any input before I go further. I've pretty much isolated the hyd. unit but maybe I'm missing something. Thanks for any ideas.

  2. #2
    Join Date
    Mar 2004
    Location
    SE Michigan
    Posts
    17,822
    Sorry, I dont mess with hydrolics. Im sure there are some gurus on here that might though. I think your the first hydrolics poster Ive seen. Good luck!
    "Politicians are the lowest form of life on Earth. Liberal Democrats are the lowest form of politician"

    - General George S. Patton

  3. #3
    Join Date
    Feb 2004
    Location
    Home is Azle Texas, work in Dallas-Fort Worth & surrounding areas.
    Posts
    370
    Worked on a few compactors and some farm equipment,you really need a manual to understand what they are trying to accomplish. Check fluid level if there is a resivour[sic],may have a filter clogged or just dirty,could have a pressure relief valve opening too soon. If it is to assist a door it may not need all that much pressure, you can do a lot of work with 100 p.s.i. Remember that you could be held liable if a child,elderly person or God forbid a small goat got caught in it. Good luck.
    Life as an adult is much like life in kindergarten - If I make it through the day without crying or hitting some one, then it was a good day!

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