Tractor backhoe - homemade
- Thread starter BFreaky
- Start date
- Views: 1109018
Gale Hawkins
Super Member
- Joined
- Sep 20, 2009
- Messages
- 8,261
- Location
- Murray, KY
- Tractor
- 1948 Allis Chambers Model B 1976 265 MF / 1983 JD 310B Backhoe / 1966 Ford 3000 Diesel / 1980 3600 Diesel
These are the kinds of skills to have in retirement if 1% of the stuff posted on the retirement thread happens. 
Luremaker
Veteran Member
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.
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.
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.
David Devuono
Platinum Member
- Joined
- Nov 11, 2008
- Messages
- 845
- Location
- Brampton, On\lot Powassan, ON Canada
- Tractor
- Kubota B4200\MF 135\Kubota B3200
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
Woody65
Gold Member
- Joined
- Mar 20, 2012
- Messages
- 478
- Location
- East Northport and Oneonta NY
- Tractor
- John Deere 4300 HST 4wd
Me compliments. That is some really nice work. Can't wait to see it come together.
Turbys_1700
Elite Member
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.
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
Relic
Silver Member
Very good planing for sure.I Do like Ur drawings.I couldn't draw to save My soul.