My Bottle Jack Rosin Press Does Not Hold Pressure, Why?

My Bottle Jack Rosin Press Does Not Hold Pressure, Why?

There are many factors that may cause the jack to not hold pressure, much apprecaited if you could check it out by yourself:

 Symptom Possible Causes Corrective Action
Jack will not lift load
  • Release valve not tightly closed
  • Overload condition
  • Air pressure inadequate
  • Ensure release valve tightly closed
  • Remedy overload condition
  • Ensure adequate air pressure
Jack will lift, but not hold pressure
  • Release valve not tightly closed
  • Overload condition
  • Hydraulic unit malfunction
  • Ensure release valve tightly closed
  • Remedy overload condition
Jack will not lower after unloading
  • Reservoir overfilled
  • Ensure load is removed, then drain fluid to proper level
Poor lift performance
  • Fluid level low
  • air trapped in system
  • Ensure proper fluid level
  • with ram fully retracted,remove oil filler screw to let pressurized air escape, then reinstall oil filler screw
Will not lift to full extension
  • Fluid level low
  • Ensure proper fluid level

    The rosin press doesn't hold pressure well after getting it, we recommend to check it out step by step:

    Step1 - Check release valve, ensure the release valve closed tightly.
    Step2 - The pressure is still not well maintained after step1, please remove the red plastic cap located at the bottom of jack (next to the release valve), and rotate no more than 30 degrees clockwise to increase the pressure of the jack.

    Tips: This is normal if you are able to continue applying pressure (You have to press down handle very harder), it means that the rated pressure of the jack has been exceeded (overload condition), and sounds air escaping. 

    How to Change Oil in Hydraulic Bottle Jack. How to Remove Air from Hydraulic jack?

    Tips: What kind of oil is suitable for bottle jack? we recommend you check it out from Amazon - check it now

      If you already checked it out as we recommended, and still have not solved the problem. Please send us a video as detailed as possible to determine the problem via support@dabpress.com directly or drop us a link.

      Best regards,

      Dabpress Team  

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