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  1. #1
    New Member
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    Apr 2010
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    2

    Default B7800 Hydraulic oil change

    I purchased a kubota B7800 from Bob Wolf @ Woodbury tractor 7 years ago at 40 hours 6 years ago I had Bob do the service. Now don't mad but I now have 70 hours on the tractor. When I had the service done I purchased all the fluids and filters I would need to do it my self.

    I would like to state I am by no means a shade tree mechanic but the fluids I feel I can take care of with out a hitch LOL. I did the oil the other day using Rotella no big deal.

    Now for some reason I can not find my owners manuel. I have everyone for all the attachments but here's where I am lost. If you are sitting on the machine near your right foot when using reverse is a yellow dip stick, this is a little low. I wanted to know If I wanted to add some fluid I so this under the seat is a Yellow capped plug. I have 2 5gal buckets of Kubota Superior UDT
    hydraulic trans fluid? Is this where this fuid is added.

    Should I change this fluid now or wait til I have 80 hours on the machine?

    Thanks
    Mark

  2. #2
    Veteran Member magicheater's Avatar
    Join Date
    Jul 2009
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    1,668
    Location
    central Wisconsin
    Tractor
    Kubota B7800, B26 TLB

    Default Re: B7800 Hydraulic oil change

    If you changed the tranny fluid @ 40 hrs. there is no need to change it now. If you did not you should change it. I have attached some manual pages for you. The yellow plug under the seat is where you put in the tranny fluid.
    Attached Files Attached Files

  3. #3
    Silver Member BTDT2's Avatar
    Join Date
    Apr 2010
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    123
    Location
    Grand Lake Oklahoma
    Tractor
    Kubota 3130HST

    Default Re: B7800 Hydraulic oil change

    FWIW - Six years is long time. Most manufacturers have both calendar and hour time recommendations. If you live in very dry conditions or park in a temperature controlled garage perhaps you can get by.

    Personally if I had the stuff sitting there I would go for the change
    Kubota 4240 HSTC; L2900; 1931 John Deere LA; Cat 416C BH; Cat 277 SS.

    JC

  4. #4
    New Member
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    Apr 2010
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    Default Re: B7800 Hydraulic oil change

    Where did you get that book. If you could post a link I would order one up today. Thanks again and I am going to change the fluids. Wish me luck.

  5. #5
    Veteran Member magicheater's Avatar
    Join Date
    Jul 2009
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    1,668
    Location
    central Wisconsin
    Tractor
    Kubota B7800, B26 TLB

    Default Re: B7800 Hydraulic oil change

    Quote Originally Posted by MarkyP View Post
    Where did you get that book.
    It is the manual that came with my B7800.

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