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Tractor Stand

Splitting stand, mounting stands, etc, etc.
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Stanton
Cub Pro
Cub Pro
Posts: 7760
Joined: Mon Jun 22, 2009 6:56 am
Zip Code: 64070
Tractors Owned: 1942 Farmall AV, serial #87025
1947 Farmall Circle Cub, serial #2116
1948 Farmall Cub, serial #46066
Circle of Safety: Y
Location: Lone Jack, MO

Tractor Stand

Postby Stanton » Tue Jan 24, 2012 8:34 am

Was inspired by some of the tractor stands already on this site, so decided to make a pair. As with all lifting devices, make sure to put safety first.

These resemble Ricky Racer's stands more than the others (thanks Ricky!), but with a difference. I was having trouble getting a floor jack and a stand under the Cub's lift point; seemed they both competed for the same floor space. So, I decided to combine the two and let them use the same floor space. Here's what I came up with.

First, I started by making a frame to hold the body of the stand in place while I welded the legs to it. My base was a doubled-up portion of 3/4" plywood, but could be any piece of stable wood. 3/4" x 3/4" pieces were added leaving a 12" x 12" clear inside dimension:

002.JPG


Next, I measured the inside of the 3" square tubing and made a column to fit inside and mounted it to the base in the exact center (extra wood was added to the sides to keep the 3" square tubing suspended in the air at the right height. Mine happens to resemble a "T", but as long as the dimensions fit inside the steel tube, any shape will do:

003.JPG


004.JPG


The first angle iron leg was cut to length (measured at the joint or outside edge) then propped up against the body:

006.JPG


Then, I scribed the bottom to get the correct angle. I want the leg bottoms to sit flush on the steel base. This turned out the be 74 degrees:

007.JPG


The other leg(s) were cut. Since I knew the angle, I cut them to the correct angle the first time, instead of scribing each one:

008.JPG


As you can see, my bottle jack will fit under the bottom of the jack stand body:

009.JPG


All four legs are welded to the body:

011.JPG


Cross bracing is added:

012.JPG


Then the center portion of the jack (the part that will ride up/down inside the body tube) is drilled out and welded to the top receiver and bottom plate. The number of holes and spacing on your jack may differ. Suit to fit your needs:

013.JPG


016.JPG


It looked a lot better ground and wire wheeled:

017.JPG


Next, I wanted some mid-level support. Something that would tie the middle portion of the leg to the lower part of the body. I thought the supports would be cut at the same 74 degree angle, but mine had to be cut at 66 degrees and fitted so they connect the inside of the legs with the corners of the body. Came up with this (jack is upside down):

019.JPG


Almost done (it's missing the base plate that I added in the revision below):

038.JPG


And in use:

040.JPG


041.JPG


Disclamer: Be careful. Make sure you make good, solid welds. When using your new jacks for the first time, use other stands or wood cribbing for backup. Safety first; you are responsible.

UPDATED:
Here's a 3/16" steel plate welded to the bottom. Think they're finally done now:

042.JPG


043.JPG


Here's the REVISED dimensioned drawing if anyone wants to try it.

Tractor Stand.jpg


Thanks to everyone who commented and made suggestions!!
Last edited by Stanton on Mon Jan 30, 2012 7:39 am, edited 2 times in total.
Stanton
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Jim Becker
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Posts: 17240
Joined: Sun Feb 02, 2003 2:59 pm
Zip Code: 55319
Circle of Safety: Y
Location: MN

Re: Tractor Stand

Postby Jim Becker » Tue Jan 24, 2012 3:06 pm

Whenever I do something in a way that I haven't done before, I try to ask myself what could go wrong. When it involves jacking or blocking, I try doubly hard to look for potential hazards. In this case it took the second look, but I do see a risk. When the jack is in place and holding the load, there is no weight on the lower piece of your stand. At that point it is only serving as a bit of decoration for the upper part. The upper part is acting about the same as a piece of 2x4 standing on end to extend the reach of a jack. The width of the jack's base and the placement of the jack stand against the lifting pad is all that keeps the parts upright. If the pad is off level it will be adding a lot of side pressure on things.

I see two ways to address this.
1) Add some sort of base plate so that the jack exerts down force on the bottom half of the jack stand.
2) Add bracing near the bottom of the jack stand that will hold the bottom of the jack at the center of the jack stand. (This would probably make your jack captive to the stand while the stand is in use.)

User avatar
Stanton
Cub Pro
Cub Pro
Posts: 7760
Joined: Mon Jun 22, 2009 6:56 am
Zip Code: 64070
Tractors Owned: 1942 Farmall AV, serial #87025
1947 Farmall Circle Cub, serial #2116
1948 Farmall Cub, serial #46066
Circle of Safety: Y
Location: Lone Jack, MO

Re: Tractor Stand

Postby Stanton » Tue Jan 24, 2012 3:47 pm

I think I see what you're talking about.

By encompassing the bottle jack within the stand/system, the bottle jack would be pushing against the bottom plate or stand, instead of the ground or floor. Therefore, by keeping the jacking pressure only touching one element (the stand) instead of two elements (the stand and the floor), I've reduced the risk of side pressure shifting the tractor off balance.

Thanks for the critique, it's appreciated.
Stanton
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Jim Becker
Team Cub
Team Cub
Posts: 17240
Joined: Sun Feb 02, 2003 2:59 pm
Zip Code: 55319
Circle of Safety: Y
Location: MN

Re: Tractor Stand

Postby Jim Becker » Tue Jan 24, 2012 4:18 pm

Yes, exactly. Having the weight on the bottom of the jack stand brings the whole jack stand base into use rather than just the jack base, increasing stability. It also supports the upper part of the jack stand keeping it in line with the jack.

User avatar
Stanton
Cub Pro
Cub Pro
Posts: 7760
Joined: Mon Jun 22, 2009 6:56 am
Zip Code: 64070
Tractors Owned: 1942 Farmall AV, serial #87025
1947 Farmall Circle Cub, serial #2116
1948 Farmall Cub, serial #46066
Circle of Safety: Y
Location: Lone Jack, MO

Re: Tractor Stand - REVISED

Postby Stanton » Mon Jan 30, 2012 9:55 am

I've added two new pictures to the end and revised the drawing.
Stanton
Image Circle of Safety

Jim Becker
Team Cub
Team Cub
Posts: 17240
Joined: Sun Feb 02, 2003 2:59 pm
Zip Code: 55319
Circle of Safety: Y
Location: MN

Re: Tractor Stand - REVISED

Postby Jim Becker » Mon Jan 30, 2012 10:47 am

Nicely done. They should serve you well for years.


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