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  1. #21
    Veteran Member
    Join Date
    May 2012
    Posts
    2,199
    Location
    Me
    Tractor
    Mahindra Max28XL HST

    Default Re: Tractor backhoe - homemade

    That is really impressive. Great Job!
    http://www.ohr.edu/838
    https://www.youtube.com/watch?v=U9BfhxL_JTI
    https://www.youtube.com/watch?v=J8UEVoSJmfs


    “If you continue in My word, then you are truly disciples of Mine;and you will know the truth, and the truth will make you free.” Ancient of Days

    My soul finds rest in God alone; my salvation comes from him.

    http://www.youtube.com/watch?v=37aM75LaEDk&list=PLGLwt3_lSbxxRtjMLHJDpqEK 9vcq9IfsJ

    t

  2. #22
    Elite Member
    Join Date
    Sep 2009
    Posts
    4,280
    Location
    Murray, KY
    Tractor
    265 MF / JD 310B Backhoe

    Default Re: Tractor backhoe - homemade

    These are the kinds of skills to have in retirement if 1% of the stuff posted on the retirement thread happens.

  3. #23
    Veteran Member Luremaker's Avatar
    Join Date
    Aug 2004
    Posts
    1,250
    Location
    Ontario
    Tractor
    Kubota L3130HST & NH TC18

    Default Re: Tractor backhoe - homemade

    Wow amazing work you have done there. How many hours to make your subframe?

    Interesting... you saddles are at the top and pins are on the bottom. My Woods subframe is just the opposite, saddles down low and the pins are at the top.

  4. #24
    Bronze Member reggiejr's Avatar
    Join Date
    Mar 2011
    Posts
    93
    Location
    Maine
    Tractor
    kubota L3800

    Default Re: Tractor backhoe - homemade

    Quote Originally Posted by BFreaky View Post
    At this point I'm not really sure but it should not be over 3000$...hopefully :-)
    I've managed to get some of those thicker plates from the scrapyard (remains from big projects which are disposed from large factories).
    That's not actual scrap, it's new metal but some parts were already cut out...sometimes they cut it the wrong way or wrong patterns so they dump it and then I get it at a lower price
    Material for the main frame, buckets and boom is brand new and I bought it in store. Pumps, joysticks and bucket teeth were ordered brand new. The only old parts will be the cylinders. 3 from an old JCB, 3 from O&K excavator and one from MF backhoe. I will replace all the seals and O rings so they should work just fine
    I wanted to buy all new parts but of course, "time ($$$)" is always an issue
    very interested to see your progress.

  5. #25
    Platinum Member
    Join Date
    Nov 2008
    Posts
    711
    Location
    Brampton, On\lot Powassan, ON Canada
    Tractor
    Kubota B4200\MF 135\Kubota B3200

    Default Re: Tractor backhoe - homemade

    Very nice work and looks heavy duty. I know it takes me hours to cut and shape 1/4 inch plate and that stuff looks a lot thicker. I wonder why the tandem pumps? Is it to power something like a jack hammer? Most people who use the tractor hydraulics have to turn the RPM down to give them better control. With dual pumps that thing may just fly.
    Unimogdave

  6. #26
    Gold Member BFreaky's Avatar
    Join Date
    Apr 2010
    Posts
    284
    Location
    Europe
    Tractor
    Belarus 820

    Default Re: Tractor backhoe - homemade

    Quote Originally Posted by David Devuono View Post
    Very nice work and looks heavy duty. I know it takes me hours to cut and shape 1/4 inch plate and that stuff looks a lot thicker. I wonder why the tandem pumps? Is it to power something like a jack hammer? Most people who use the tractor hydraulics have to turn the RPM down to give them better control. With dual pumps that thing may just fly.
    most of these plates are 15 mm thick, and the large ones with hooks are 25 mm. Tandem pumps are here to get a quick and smooth operation of the machine. Hydraulic flow through the joysticks is 80 liter/minute, and the cylinder diameter will be 135 mmon the largest and 100 on the smallest. I"ve calculated cycle times and they all come up to 5-6 seconds on large cylinders except on the boom swing, but there I plan to install a flow limit valve to make it slower

  7. #27
    Silver Member Woody65's Avatar
    Join Date
    Mar 2012
    Posts
    211
    Location
    East Northport and Oneonta NY
    Tractor
    John Deere 4300 HST 4wd

    Default

    Me compliments. That is some really nice work. Can't wait to see it come together.
    Trying to stay out of trouble but the day ain't over
    JD 4300 HST 4wd, JD 430 FEL, NH 930B finish mower, New Holland 906 PHD,
    10,000# GVW 16' trailer, Bush hog SQ600

  8. #28
    Veteran Member
    Join Date
    May 2005
    Posts
    1,330
    Location
    Balls Creek, NC
    Tractor
    New Holland 1720

    Default Re: Tractor backhoe - homemade

    You have skills that are to die for...
    Might I ask a question?
    Where did you receive your training?
    I assume that you are a mechanical engineer.

  9. #29
    Gold Member BFreaky's Avatar
    Join Date
    Apr 2010
    Posts
    284
    Location
    Europe
    Tractor
    Belarus 820

    Default Re: Tractor backhoe - homemade

    Quote Originally Posted by Turbys_1700 View Post
    You have skills that are to die for...
    Might I ask a question?
    Where did you receive your training?
    I assume that you are a mechanical engineer.
    This started as a hobby when I was very young (now I'm 28 years old). I learned all these skills mostly by my self.
    I'm not a mechanical engineer, I graduated electrical engineering, but was always far more interested in mechanics.
    This is not the only machine I've constructed, there are a lot of them; this one is just the most complicated

  10. #30
    Silver Member
    Join Date
    Jan 2013
    Posts
    118
    Location
    Brookfield,Nova Scotia
    Tractor
    Sears GT

    Default Re: Tractor backhoe - homemade

    Very good planing for sure.I Do like Ur drawings.I couldn't draw to save My soul.

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