3 point hitch on B1750

[genelp]

I took a break from a woodworking project and was checking out the 3 point hitch on my B1750 (I'm starting to look for a blade and am working on a design for an underslung weight box) and noticed that the bracket for the lower links shaft is part of an aluminum housing. I would hope that there is (are) steel bushing(s) in the brkt. Does anyone know? Also how tight should the shaft be in the housing?
Thanks!
Gene

 

[kubmech]

Gene, if your looking where I think your looking? The shaft runs through the back of the lower differential housing. There are no bushings and the shaft should not move at all. If you look directly in the center above the draw bar bracket you should see a bracket with a bolt and jam nut that screws into a dimple in the shaft and keeps it from moving from side to side.

 

[aschk]

There are no bushings in the housing itself, but it should be "sandwiched" on both sides by steel plates, and have a steel drawbar receiver in the center. If there are no steel plates, Do Not use an implement on it until you have replaced these parts. Even with them, do not use oversized equipment as it can (and will) break the trans case. I bought my B1750 used and saw the 6' box blade that broke mine. The previous owner overestimated the power of the little tractor, and the end result is a broken $200 part that costs about $1000 to replace! I am thinking of heliarc welding it or just going the way it is. The steel seems to hold everything in place, and the aluminum appears to be used as a boss or spacer. The new designs do not use the trans case as a part of the 3pt setup. Perhaps a lesson was learned?
Hope this helps,
Andy

I don't know why anyone would remove these parts, but I have seen it done on a B1550 at a courthouse maintenance shop.

 

[genelp]

Thank you Kubmech and Andy for replying to my question. I've located the bolt that should be tightened against the shaft. After reading Andy's experience I'm wondering if I should fabricate some heavier steel plates to replace the 1/4" ones that the sandwich the housing. In fact those thin plates are what I noticed first, so I started looking at the rest of the three point setup and thought that the whole 3 point setup was a little on the light side.
Thanks again for the advice!