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  1. #1
    Silver Member chevy292's Avatar
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    Nov 2009
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    109
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    Ma.
    Tractor
    Kioti DK35 TLB

    Default DK35 hydraulic pump

    I was wondering if the hydraulic pump on my '04 DK35 can be rebuilt. If it can't any ideas what a new pump costs? How difficult is it to change the pump? Thanks in advance for any/all help!!!
    DK35 TLB. 6' Box Blade, 60" flail mower

    1963ish JD 2010 TLB

  2. #2
    Elite Member
    Join Date
    Feb 2002
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    4,767
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    western,pa.
    Tractor
    Kioti DK 35

    Default Re: DK35 hydraulic pump

    I don't have the answer to your questions.
    But I am curious, what is wrong with your pump?
    Vince,
    Kioti DK 35
    Hustler Super Z

  3. #3
    Silver Member chevy292's Avatar
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    Kioti DK35 TLB

    Default Re: DK35 hydraulic pump

    The hydraulics are much weaker than they should be. I know the front loader on these machines are a joke to begin with...but even my backhoe just isn't what it should be. I also have the larger backhoe i have the 2485 and it's just weak. I'm certainly not a hydraulics expert so I am only assuming the pump could use a rebuild. I always make sure the fluid level is topped off and the filter is replaced on schedule. My machine has 13XX hours on it so I figured it was time. Am I totally looking in the wrong direction on this?
    DK35 TLB. 6' Box Blade, 60" flail mower

    1963ish JD 2010 TLB

  4. #4
    Elite Member
    Join Date
    Feb 2002
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    4,767
    Location
    western,pa.
    Tractor
    Kioti DK 35

    Default Re: DK35 hydraulic pump

    I am no hydraulic expert either.
    The first thing I would do is get a pressure test done to see if the pump pressure is where it should be, then go from there.
    I'm sure hydraulic pumps are not cheap. Hate to see you change a pump and not see any gain.
    Vince,
    Kioti DK 35
    Hustler Super Z

  5. #5
    Super Member
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    Apr 2000
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    6,405
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    central New York
    Tractor
    all makes and models

    Default Re: DK35 hydraulic pump

    A poor cross over of after market filters could give you a starvation of oil. There could be more but I think this should be an exception.

  6. #6
    Silver Member chevy292's Avatar
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    Nov 2009
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    Ma.
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    Kioti DK35 TLB

    Default Re: DK35 hydraulic pump

    How do I go about doing a pressure test? Dealer isnt very close so if I can do it myself that would be great.

    My filters are from the dealer so I hope they are good.
    DK35 TLB. 6' Box Blade, 60" flail mower

    1963ish JD 2010 TLB

  7. #7
    Elite Member wdchyd's Avatar
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    Apr 2010
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    2,771
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    Hooksett, NH
    Tractor
    Kubota B2320

    Default Re: DK35 hydraulic pump

    You need a flow meter/load test to properly test the pump.......a pressure guage only will show pressure but won't show efficiency of pump (flow and pressure).......Kubota Flow/Load Meter Test - Tractor Videos - Kubota, John Deere, New Holland and More

    If it's a gear pump and worn out, then likely it'll be cheaper to replace as you'd need to replace all mechanical moving parts (gear set, wear plates, gear housing, bearings) to tighten up the worn clearances to restore power.....
    2010 Kubota B2320 FEL & BH65
    If it ain't fixed don't broke it!

    http://www.tractorbynet.com/content/...-month-wdchyd/

  8. #8
    Silver Member chevy292's Avatar
    Join Date
    Nov 2009
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    109
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    Ma.
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    Kioti DK35 TLB

    Default Re: DK35 hydraulic pump

    Great video thanks! That setup looks like it costs a lot more than it would cost me in diesel fuel to tow my machine to the dealer. I'll have to give them a call to see what a test would run me.
    DK35 TLB. 6' Box Blade, 60" flail mower

    1963ish JD 2010 TLB

  9. #9
    Elite Member
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    Feb 2002
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    4,767
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    western,pa.
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    Kioti DK 35

    Default Re: DK35 hydraulic pump

    Quote Originally Posted by chevy292 View Post
    The hydraulics are much weaker than they should be. I know the front loader on these machines are a joke to begin with...
    The KL1450 loaders came with very weak roll back power. I've complained about that in the past.
    I did a lot of changes to my loader and it is a lot stronger.
    Kioti calls for 2300 PSI max pressure. I have mine turned up to just under 2450 PSI, been running it that way for years.
    The bucket roll back power was pathetic.
    The bucket pins were only 5" apart, I redrilled and moved mine to 8" apart. I also replaced the stock 1.75" roll back cylinders with 2" hydraulic cylinders.
    I then had to make new bucket linkage so the larger diameter cylinders wouldn't hit the loader arms in the rollback position.
    Took a lot of time,work/trial and error but I think I doubled the bucket roll back power.
    My loader works a whole lot better that it did from the factory.
    Attached Thumbnails Attached Thumbnails DK35 hydraulic pump-hpim0983-jpg   DK35 hydraulic pump-hpim0986-jpg   DK35 hydraulic pump-hpim0989-jpg  
    Vince,
    Kioti DK 35
    Hustler Super Z

  10. #10
    Silver Member chevy292's Avatar
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    Kioti DK35 TLB

    Default Re: DK35 hydraulic pump

    Nice work. How much slower is the curl function with the larger cylinders?
    DK35 TLB. 6' Box Blade, 60" flail mower

    1963ish JD 2010 TLB

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