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  1. #11
    Super Star Member
    Join Date
    Mar 2008
    Northern Fingerlakes region of NY, USA
    Kubota L3830GST, B7500HST, BX2660

    Default Re: Valve to control hydraulic motor

    Quote Originally Posted by Popeye1 View Post
    Would I need one of those in each line (two lines per motor)? That would mean four of those little suckers if I only used two pumps.
    You would need one on each valve, two to cover both sides. It makes it so that the pressure in either line doesn't pass whatever your relief pressure is set to.
    They can be added after you put in the valve if it stops too abruptly.

    Aaron Z
    A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
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  2. #12
    New Member
    Join Date
    Jan 2013
    None yet

    Default Re: Valve to control hydraulic motor

    Alright, so I have been thinking. I could buy one of these pumps:
    Surplus Center - 1.10 cu in WHITE HYD PISTON PUMP 101018000012
    Surplus Center - 0.62 cu in WHITE HYD PISTON PUMP 101010000025
    They are variable displacement pumps, so I could get my nice smooth operation. However, the variable displacement essentially has a valve installed on the pump, right? Are these designed to be used with just one motor? So I would need two?
    If this is true, does anyone have any brilliant ideas on how to couple both of them with the motor?
    Also, I still need all of my auxilary hydraulics (lift, tilt, aux. flow) Do I just include another pump to run everything? Its getting kind of crazy! Maybe I am totally of track and missing something though.
    Thanks for all of your help

  3. #13
    Super Star Member J_J's Avatar
    Join Date
    Sep 2003
    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: Valve to control hydraulic motor

    Each pump has it's own control for fwd and rev.

    Each pump puts out GPM's , from 0 to XX GPM's. GPM's = hyd motor rpm, which = ground speed.

    You can run one hyd motor or two, and if yuo run two, they can be connected in series or parrallel.

    My Power-Trac has one variable speed pump that runs 4 hyd motors. Some of them ar ein series and the front section is parrallel with the back motors.

    My hyd system is also a closed loop system, where as the output from the hyd motors feeds back to the input of the pump.

    If you are not going to do a zero turn vehicle, one hyd pump will suffice.

    If you are going to use the vehicle as a zero turn machine, then you need one pump , one filter and one or two motors per side.

    Each side independent of the other side, but using the same reservoir.

    Belt drive turn the pumps at the same rpm.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

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