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  1. #1
    Gold Member myyaz33's Avatar
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    Aug 2006
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    496
    Location
    Nebraska
    Tractor
    TYM T273

    Default Kubota K-650 Backhoe rebuild

    Finally got the backhoe project pretty much completed so its about time I get something posted. First off, thanks to "California" for helping me out with information on this backhoe.

    I found the kubota K-650 on Ebay last year and bought it for $800. I thought is was a pretty good deal. Took me a while to get down to Texas to pick it up and when I saw it, I realized it was going to be a bit more work than I originally thought. Once I got it back home I started ripping it down and taking pictures of it so I might actually get it put back together some day. Once I got everything apart I found a few broken pieces (swing & crowd) that I got to use the welder on. It already has some reinforcement on the boom which looked pretty good. I repacked all the cylinders using seal kits from TractorSmart.com and got the seal kits for the valves but decided not to install them yet (not sure why...). I also got a new reinforced top link at this time too and a few misc. parts.

    I prepped most of the metal using a combination of wire brush, grind wheel, wet sandblaster and dry sandblaster. After all that I took it to a professional to have it sandblasted again. Once I got it back I primed and painted it in my dirty old garage. Using Kubota color paint from TSC and for the bucket I used the graphite paint to see if that would keep the dirt from sticking to the pitted bucket.

    Upon re-assembling the unit, I had to buy new hoses which cost me $500. I wasn't too pleased about that.. Anyway a few fittings here and there and tonight I fired it up and it works pretty well. I originally intended using this on my Kubota B-6100, but I sold that last March and now have the TYM in the photos. I don't have the seat or re-reinforced top link installed as the 3pt links arms are too short. Not sure what I am going to do about that now... Anyway I will post more later after some sleep. Enjoy the pictures and don't forget to check out the link to the album.

    Here are links to the photo album-
    http://s247.photobucket.com/albums/g... K-650 Backhoe

    Here is the picture of the image as I saw it on Ebay.




    Here are two pics of what it looks like tonight. I am going to try and make some decals to match the original Kubota stickers as I can't find any replacements stickers anywhere.




  2. #2
    Platinum Member
    Join Date
    Jun 2003
    Posts
    551
    Location
    Western Illinois
    Tractor
    Kubota B2400

    Default Re: Kubota K-650 Backhoe rebuild

    Wow! That looks great. You must have the patience of Job to undertake the rebuild. I noticed the rams were pitted pretty good, any leakage issues? Congratulations on your project well done, that backhoe will be mighty handy!!

  3. #3
    Gold Member myyaz33's Avatar
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    Aug 2006
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    496
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    Nebraska
    Tractor
    TYM T273

    Default Re: Kubota K-650 Backhoe rebuild

    Thanks for the kind words. The rams did look pitted however it was mostly just surface rust that was taken care of with steel wool and fine sandpaper. At this time there dosen't seem to be any leakage on them but I haven't really put any stress on them yet.
    Attached Thumbnails Attached Thumbnails Kubota K-650 Backhoe rebuild-ram.jpg  

  4. #4
    Veteran Member Kernopelli's Avatar
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    Oct 2006
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    1,584
    Location
    Carterville, Illinois
    Tractor
    Mitsubishi MTE2000D, Dig It 258 Backhoe

    Default Re: Kubota K-650 Backhoe rebuild

    Very nice job, I'm jealous!!. I have been contemplating building a hoe for sometime and have picked up some of the hydraulics and steel...just waiting on the time and motivation to start.
    I havent seen the swing set up like that before, I assume it uses a hydraulic motor to power the chain? I'm also curious as to why the hoses were so much?

    Again, GOOD JOB!!
    Darryl

  5. #5
    Gold Member myyaz33's Avatar
    Join Date
    Aug 2006
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    496
    Location
    Nebraska
    Tractor
    TYM T273

    Default Re: Kubota K-650 Backhoe rebuild

    The swing is powered by a hydraulic cylinder and valve(left joystick valve). The cylinder is located directly behind the chain and connect to a flat metal bar that moves side to side which in turn moves the chains. That flat metal bar was broke in half when I got it, so I butt welded it back together. There might be some pictures of it in the album, if not I will be uploading more pictures later.

  6. #6
    Silver Member Sherweld's Avatar
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    May 2008
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    174
    Location
    Allyn, WA
    Tractor
    Kubota B7100

    Default Re: Kubota K-650 Backhoe rebuild

    Great job! Thanks for sharing all the pix.

  7. #7
    Gold Member myyaz33's Avatar
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    Aug 2006
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    496
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    Nebraska
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    TYM T273

    Default Re: Kubota K-650 Backhoe rebuild

    Quote Originally Posted by Kernopelli
    I'm also curious as to why the hoses were so much?
    I was not sure either. I thought for 14 hoses, maybe $200 or $300 at most, but was shocked when I got the bill. I didn't argue as I don't have many options in town. Maybe that is why!!

  8. #8
    Veteran Member irwin's Avatar
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    Feb 2007
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    1,276
    Location
    SE Conn
    Tractor
    2004 Kubota L35TLB, '89' Cub Cadet 1541

    Default Re: Kubota K-650 Backhoe rebuild

    Quote Originally Posted by myyaz33
    I was not sure either. I thought for 14 hoses, maybe $200 or $300 at most, but was shocked when I got the bill. I didn't argue as I don't have many options in town. Maybe that is why!!
    Might be, if there's no competition in your area. I bought a few hoses from a small local equipment rental/sales place, then I got almost the same set up from NAPA for 1/2 the cost! When we spent a few hundred, that adds up to a good savings.
    .....Tim

  9. #9
    Gold Member myyaz33's Avatar
    Join Date
    Aug 2006
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    496
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    Nebraska
    Tractor
    TYM T273

    Default Re: Kubota K-650 Backhoe rebuild

    Quote Originally Posted by irwin
    Might be, if there's no competition in your area. I bought a few hoses from a small local equipment rental/sales place, then I got almost the same set up from NAPA for 1/2 the cost! When we spent a few hundred, that adds up to a good savings.
    Why did I not think of NAPA? That may have been money saved for another implement!!! I'd better not check to see what the same hoses cost from them or I'll kick myself.

  10. #10
    Gold Member myyaz33's Avatar
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    Aug 2006
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    496
    Location
    Nebraska
    Tractor
    TYM T273

    Default Re: Kubota K-650 Backhoe rebuild

    Anybody have a good idea on how I can get some kubota stencils made so I can paint the logos back on?

    Hooked the backhoe up tonight and ran it from the rear remotes instead of the PTO pump. Worked great! Made big hole!
    - TYM T273, BT200 Backhoe, LT200 Quick Attach FEL-

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