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Boss hydraulic fluid loss

Discussion in 'Truck & Equipment Repair' started by nbuzz, Jan 18, 2013.

  1. nbuzz

    nbuzz Junior Member
    Messages: 24

    I've searched for an answer but couldn't find any threads that mactch.

    A friend of mine has an rt3 8' vee same as me but he's leaking hydraulic fluid out the top vent cap on the reservoir when he lifts up and down 2 or 3 cycles. we didnt overfill the reservoir. the plow will v in and out without fluid but as soon as you lift cycle a few times the thing loses so much fluid that it can't run at all.

    Any advice on troubleshooting and repair? thanks guys.
  2. T-Trim

    T-Trim Senior Member
    from NE OH
    Messages: 207

    Stop adding fluid!
  3. Spool it up

    Spool it up Senior Member
    Messages: 912

  4. nbuzz

    nbuzz Junior Member
    Messages: 24

    I appreciate the responses, but I think you guys misunderstand the issue. I should've been more detailed.

    we were plowing for about a 12-14 push when he lost so much fluild that there was no hydraulic pressure for the plow to operate. so we then re-filled the reservior and tried to cycle it through to make it operational.

    after we filled it the plow re-gained pressure but after 2-3 lift cycles it puked all the fluid out of the top of the reservior again.

    so the question is does he have a stuck or frozen valve? could it be the pressure relief valve? I don't have much experience on the hydraulic manifolds, so any help is greatly appreciated.

    thanks, Nick,