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  1. #1
    Bronze Member
    Join Date
    Apr 2007
    Posts
    63
    Location
    Fort Worth,TX
    Tractor
    Kubota L2800 with HST/R4 Tires

    Default L2800 Cracked Rear End

    A few months ago I noticed that my new L2800 was dripping oil on the shop floor. Depending on which attachment was on it determined how much oil dripped. The dealer said a drop or two was nothing unusual but I should keep an eye on it. It got worse and with the backhoe attached it really drips. I finally found the source today. The rear end is cracked on both sides of the 3 point hitch plate. When I put the outriggers down on the backhoe the cracks close up which would explain why it was dripping worse with heavier attachments. I only have 34 hours on the tractor and havent even had a chance to use abuse it yet. Has anyone else had or heard of this problem?
    Attached Images Attached Images

  2. #2
    Veteran Member
    Join Date
    Jul 2002
    Posts
    1,171
    Location
    North of the Fingerlakes - NY
    Tractor
    Ford 4000; Ford 2000(both 3cyl.);JD40; 2004 Kubota L4300; 2006 Kubota B7610; new 2007 Kubota MX5000

    Default Re: L2800 Cracked Rear End

    Yikes! That's a crack alright. What kind of hoe have you been using? Is it 3PH or does it have a subframe?

    Your dealer's gonna have some fun with that thing. Hope he doesn't tell you it's normal.
    Bob
    New Kidz: '04 L4300 w/BH-90X, '06 B7610, '07 MX5000 Old Pros: '75 Ford 4000, '54 JD40

    Romans 8:28

  3. #3
    Bronze Member
    Join Date
    Apr 2007
    Posts
    63
    Location
    Fort Worth,TX
    Tractor
    Kubota L2800 with HST/R4 Tires

    Default Re: L2800 Cracked Rear End

    Hey Bob. The dealer put the BL4690B hoe on it. Its a 3PH but I believe the dealer mentioned that they had put a subframe kit? on the tractor.

  4. #4
    Elite Member wushaw's Avatar
    Join Date
    Mar 2005
    Posts
    3,075
    Location
    Bristol Texas
    Tractor
    Kubota L2800, 15 hp 372 Mitsubishi

    Default Re: L2800 Cracked Rear End

    So that is what a 3pt BH attachment will do??? Glad I got the subframe.

    The subframe is totally different than the 3pt. It attaches differently and doesn't use the 3pt arms or top link in any fashion.

    Since your dealer installed a 3pt BH... it looks like he gets to fix it also.

    I do recommend a subframe type BH so this won't happen when the warranty runs out.

  5. #5
    Veteran Member irwin's Avatar
    Join Date
    Feb 2007
    Posts
    1,279
    Location
    SE Conn
    Tractor
    2004 Kubota L35TLB, '89' Cub Cadet 1541

    Default Re: L2800 Cracked Rear End

    Hi Garren, Good thing it happened under warranty!!
    I bought a 3pt hoe, but made a subframe for it, sure am glad i did, ain't no warranty on 19 year old tractor.

    It will be tough to give it up for a repair, let us know what happens next. What the dealers says, does etc.
    I want to thank you for posting this. I do want to know if you used the backhoe alot? and can you post a picture of the mounting points? Lets see what this dealer says is a subframe... either way. this shouldn't happen

    I feel for ya. good luck....
    .....Tim

  6. #6
    Gold Member
    Join Date
    Aug 2005
    Posts
    287
    Location
    NW Pa.
    Tractor
    Kubota L3400

    Default Re: L2800 Cracked Rear End

    Here are Pics from what I have done to my L3400 with the Factory kubota Part that is used to re-enforce the rear end housing for 3 pt heavy attachments. Note that I have this brace on and also the sub-frame mount for my "Hoe". To order this part, have your model number and serial number. My brace had to modified to allow the breather tube to be un-obstructed. Also, I welded the two piece top link bracket to it for more strength.
    (I did this because I use my box blade and scraper blade in reverse a lot in the winter)

    The pitfall of some 3 pt attachments! Previous threads show a rear-end housing that was broke off at the upper half using a three pt set-up. Quote at that time for repairs was around $4000.00 for housing and to re-install gears etc.

    My belief is that 3pt. backhoes should have nothing but 4 pt sub-frames, a few bucks more and you get more from your machine! And it will love you for it.

    I am stepping off the box for the next speaker!!!!

    JW 5875
    Attached Files Attached Files

  7. #7
    Bronze Member
    Join Date
    Apr 2007
    Posts
    63
    Location
    Fort Worth,TX
    Tractor
    Kubota L2800 with HST/R4 Tires

    Default Re: L2800 Cracked Rear End

    Now that I've done some reading on these backhoes, it's clear that mine is definitely a 3 pt hookup. I thought the dealer put a subframe on this because he said it may need one. I thought all the frame work underneath was what he meant but it looks like it is all attached to the FEL.
    To answer Tims question about useage...I dont feel I used the hoe much before I noticed the oil on the floor. I had only planted a few 35 Gal. size trees, dug up some small unwanted shrubs and dead peach tree stump (about 4 inch caliper)
    and dug a short trench for electric line.
    I think Ive used it more since its been leaking than before. Its sounds like you guys are thinking the backhoe is the culprit. Kubotas website says that this is the proper backhoe model for this tractor...why would it crack this rear end? Do you think the rear end was flawed? Can it be converted to subframe type? What should I request the dealer do?

  8. #8
    Elite Member wushaw's Avatar
    Join Date
    Mar 2005
    Posts
    3,075
    Location
    Bristol Texas
    Tractor
    Kubota L2800, 15 hp 372 Mitsubishi

    Default Re: L2800 Cracked Rear End

    I have a L2800 and a BH75 with the 4pt subframe, it is nice, sturdy and easy to hook up. It has dug up many stumps so it has done alot of pulling the tractor around, I have atleast 50hrs of BH time...maybe more, I just put 3 hrs on it yesterday pulling stumps

    I would request a BH with 4pt subframe. I am sure they will not just swap you out with one so you will probably have to sell the 3pt unit and buy a 4pt subframe unit.

  9. #9
    Veteran Member DiezNutz's Avatar
    Join Date
    May 2006
    Posts
    1,019
    Location
    Central MD
    Tractor
    Kubota B3030-HSD-F

    Default Re: L2800 Cracked Rear End

    Quote Originally Posted by Jw5875
    Here are Pics from what I have done to my L3400...
    WinZip doesn't like your .zip file (for me anyway). Also you're asking us to trust you an awful lot
    Kubota B3030-HSD w/R4s, LA403 60" FEL w/ATI TB, RCK60" MMM, Woods BH80-X 4pt Hoe w/24"+12" bkts & Thumb, Woods RB72" Blade w/shoes

  10. #10

    Default Re: L2800 Cracked Rear End

    Quote Originally Posted by DiezNutz
    WinZip doesn't like your .zip file (for me anyway). Also you're asking us to trust you an awful lot
    The zip file opened just fine using StuffIt (Mac OS X). BTW it contains several pictures of rear ends ...
    of tractors

    Talon Dancer

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