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  1. Docbar99

    Adding hydraulic fluid

    @FluidPowerUser- Thank you very much, that sounds like a very logical way to proceed.
  2. Docbar99

    Adding hydraulic fluid

    @FluidPowerUser- Thank you for some good advice. So lets say I first fill the pump with fluid. I then attach my hoses and start pumping. Would I then periodically open the cap to check if my tank is below half. Add Fluid. Open the bleed valve and pump until my jacks start to go up to their...
  3. Docbar99

    Adding hydraulic fluid

    @LittleInch I am new at this and I am not sure what additional information you would need. But here is what I can say: This is what I was planning, but am not familiar with the process of adding oil without letting air in. Enerpac P391, Single Speed, Hydraulic Hand Pump, 901cm³, 25.4mm Cylinder...
  4. Docbar99

    Adding hydraulic fluid

    @3DDave- Thanks for the fast response. I had an idea that something like that may be needed. Do you know of any cheaper options?
  5. Docbar99

    Adding hydraulic fluid

    This is a real newbie question as I have never worked on a hydraulic system before. So I am planning a 4 point lift with a single acting pump and about 10 feet of hose on each. I was thinking that I would need more oil that what fits in the pump reservoir. So the question- How do you add fluid...
  6. Docbar99

    Jacking up a tank

    @FluidPowerUser- Thanks again for your awesome & prompt support. If you know of another brand besides Enerpac that you would recommend that will be reliable at a better price, let me know.
  7. Docbar99

    Jacking up a tank

    @FluidPowerUser- I worked through the problem and was off your numbers in two places- not sure what I did wrong. Sample Problem: The tank empty weight + contents = 25 tons = 245000N or 24983.05 kg/force. F= MA F = 25 t = 25,000 kg x 9.81 =245,250 =2405kN 2405kN / 4 = 626kN on each jack...
  8. Docbar99

    Jacking up a tank

    @Compositepro- Thanks for your feedback. FluidPowerUser did warn me about that. What I am pprepared to do in order to minimize that effect is to have a needle valve on each line and move them one at a time. Also- the load cells are wired in parallel, so if one load cell gets more force than one...
  9. Docbar99

    Jacking up a tank

    @FluidPowerUser- Thanks for your continuing support. I will try to work through these problems myself so that it sinks in better.
  10. Docbar99

    Jacking up a tank

    @FluidPowerUser- First I really appreciate the time & effort you have already given to me. I hope my lack of knowledge is not too frustrating for you. Yes- I am trying to measure the mass of the vessel, but more importantly the weight of the material inside or the vessel. The weight indicator...
  11. Docbar99

    Jacking up a tank

    @FluidPowerUser- Thanks for the fast response to my question. Let me explain a little more and please forgive my lack of basic hydraulics knowledge. 1- A more detailed explanation of the process- I forgot to mention that I was planning to add a needle valve on each manifold. I would start the...
  12. Docbar99

    Jacking up a tank

    I am looking to jack up a process vessel / tank / silo on load cells. The purpose to move the tanl just a few milimeters to help verify the accuracy of the load cells. I am in the process weighing vessel industry and know nothing about hydraulics. Whay I hope to do is to have a manual pump...
  13. Docbar99

    seismic considerations

    I am not a structural engineer but am often asked to recommend Tank mounting kits for seismic areas. I have a calculator that I use that calculates Horizontal and uplift forces. We sell mounting kits and load cells that are sometimes sold into seismic zones. Our calculator has input for many...

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