9/16" threaded hole in LoBoy drawbar bracket-SOLVED

[Bob McCarty]

What is it for? The hole is threaded for a coarse thread bolt. I have some 9/16" fine thread that came from somewhere off a Cub, but have no idea what attaches to these holes. My first LoBoy so I'm not too familiar with them.

[Stanton]

Did I miss your post stating that you acquired a LoBoy? My apologies if I missed it. Pictures?

[Jim Becker]

Sure they aren't 5/8 threads? Maybe for the cross bar of a swinging drawbar? I don't know, don't recall ever seeing a Lo-Boy with one.

[Bob McCarty]

Definitely 9/16. Stanton, I picked it up locally about 6 weeks ago. It's a 1957. Runs strong, but covered in grease and oil. I'm sure a lot of seals will need attention.

[Glen]

Hi,
Below are pics of the brackets from TM Tractor, there is a hole in each bracket, besides the 3 holes for adjusting the drawbar height, I guess they are for.
I don't know if that is what yours has.

http://www.tmtractor.com/tm-tractor/gdr ... ts_001.htm

[Bob McCarty]

Yes, that single hole in the middle of the bracket is threaded.

[Barnyard]

Here you go. it looks like it is number six in the exploded view. http://savethecub.com/manuals/parts/cub ... -loboy.htm

I don't believe a Loboy final drive has front implement bolt holes like a Cub so the swinging drawbar anchor bolts to the drawbar bracket.

[Bob McCarty]

Unless there is a different swinging drawbar for the LoBoy, the holes on the one I have take a tapered shoulder bolt like the brackets.

[Barnyard]

Bob, the Loboy takes a different anchor bar than a Cub. http://savethecub.com/manuals/parts/cub ... ar-cub.htm

[Jim Becker]

The parts catalog calls out the same part number for bolting on the swinging drawbar crosspiece as is called out for the main drawbar (tapered head). I believe that both major parts of a Lo-Boy swinging drawbar are shorter than the corresponding parts of a Farmall swinging drawbar. (again, no first-hand experience).

[Barnyard]

The 9/16" bolt hole has me puzzled. It should be 5/8" to match the bolt. I will try to remember to check mine tomorrow.

[staninlowerAL]

Bob, you did not say if the brackets are OEM or repro (you might not know). When I got my 57 LoBoy it was missing all of the rear finals attaching hardware and a PO had heavily modified a Bush Hog 412 mule drive and mower to fit on it. I was lucky enough to find a Pennington mule drive (thanks Mr. Bill Hudson) and a FH (thanks tst) for my LoBoy and thus resolved having to find and fit the brackets and drawbar as you have done. Good Luck with the puzzle. I also realize that this has nothing to do with your original question! Stan

[Bob McCarty]

Thanks. That explains what the hole is for, but not the size. Both are oem brackets and both holes are 9/16". I doubt that I'd ever have a use for a swinging drawbar, so those holes will always remain unused. I would be interested to know if others have the smaller hole on their LoBoy brackets.

[Barnyard]

Well, I just went out and checked out one of my Loboys this morning (it is cold out there). It has 9/16" holes as well. But as Jim says, the parts manual call for the same 5/8" as the drawbar.

[Jim Becker]

Where do you even find a 9/16 bolt? I tried one side of mine. A 5/8 bolt will not screw into it. But I am reasonably sure that the hole has 56 years accumulation of crud in it. I think a 5/8 tap would clean it up.