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  1. #1
    New Member
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    jinma newholland tn75

    Default jinma backhoe hydraulics

    Does someone know where to get cylinder parts for jinma backhoe? Cylinders will not hold pressure and are weak. Stabilizers will not stay up. Thanks

  2. #2
    Elite Member Bob Rooks's Avatar
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    Feb 2007
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    Bothell & Silverdale, WA
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    Yuchai Bulldozer

    Default Re: jinma backhoe hydraulics

    Welcome to TBN.

    One of the places you can get replacement parts is Circle-G Tractor. What year/model is the backhoe, and did you buy it new?
    Do all of the cylinders seem "weak" or is it just the stabilizer cylinders?
    Yuchai 306R dozer, Mustang 2040 skid steer, Mitsubishi MS035 Mini-Ex with four buckets and a rake, Trimble machine control GCR-2SM laser receivers.

  3. #3
    New Member
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    jinma newholland tn75

    Default Re: jinma backhoe hydraulics

    Quote Originally Posted by Bob Rooks View Post
    Welcome to TBN.

    One of the places you can get replacement parts is Circle-G Tractor. What year/model is the backhoe, and did you buy it new?
    Do all of the cylinders seem "weak" or is it just the stabilizer cylinders?
    Thanks for reply. Bought hoe back in 2004. Sat in storage since. Only ID I can find is Y 1 . Only large piston at top that curls the arm is weak, support cylinders bleed down and arms sink. Again Thank you

  4. #4
    Elite Member Bob Rooks's Avatar
    Join Date
    Feb 2007
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    2,800
    Location
    Bothell & Silverdale, WA
    Tractor
    Yuchai Bulldozer

    Default Re: jinma backhoe hydraulics

    Quote Originally Posted by denzman View Post
    Thanks for reply. Bought hoe back in 2004. Sat in storage since. Only ID I can find is Y 1 . Only large piston at top that curls the arm is weak, support cylinders bleed down and arms sink. Again Thank you
    The problem I had with my LW-6 back hoe is that the cylinder cup seals disintegrated from using synthetic AW-32 hydraulic oil. Bad cup seals will cause your symptoms - pistons leaking by. You may also have some cup seal debris stuck in your relief valve. It should probably be checked and cleaned. You will have to order seal kits by cylinder size. Seals should also be available from your local hydraulic shop, who can also rebuild the cylinders.
    Yuchai 306R dozer, Mustang 2040 skid steer, Mitsubishi MS035 Mini-Ex with four buckets and a rake, Trimble machine control GCR-2SM laser receivers.

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