Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Help with troubleshooting a scissor lift

  1. Jun 2, 2015 #1
    I own a 2000 model Pentalift scissor Lift. It works fine, when a single person is in the lift, but when 2 people of average weight are in the lift it will not go up properly. We haven’t exceeded the rated maximum capacity of the lift platform. It seems like it does not have enough power or hydraulic flow to raise the platform with the weight of 2 people for some unknown reason. I had a look and there is plenty of hydraulic oil in the reservoir. Could it be due to some faulty valve or something restricting the flow? Can anyone offer me some tips where to check?
     
  2. jcsd
  3. Jun 2, 2015 #2

    Baluncore

    User Avatar
    Science Advisor

    It could be a problem with the pressure relief valve. Is there metal of filter debris in the hydraulics?
    Are there bubbles in the hydraulic oil due to sucking air through pump seals? Have you replaced the hydraulic oil filter?
    Are you able to measure the hydraulic pressure? Fit a gauge so you can see pressure rise to relief when hydraulics are activated.
    Maybe a hydraulic cylinder piston seal is failing. Maybe a piston rod is bent.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Help with troubleshooting a scissor lift
  1. Scissor Lift Force (Replies: 2)

  2. Double scissor lift (Replies: 1)

  3. Scissor Lift (Replies: 10)

  4. Scissors lift design (Replies: 10)

Loading...