'60s - '70s MF combine cylinder speed adjustment

I have a '58 MH model 60 PT combine that I would like to use on dry beans. With the largest sprocket (43 T) on the cylinder, it breaks more than a few soybeans. When I tried black turtle dry beans, about half of them were broken.

I am looking for a way to slow down the cylinder and still run at WOT, for the fanning mill. Any ideas ?

Thanks

Greg

Do you think that it would fit ? If so, is there any chance that you have a triple sprocket, pn 213 495 M11, or know of one ? I would also be interested in the 52 T sprocket ( pn 210 303 M2 ) for the cylinder.

Thanks

Greg

The 300, 410, 510 combines had a set of pulleys on the right hand side that controlled cylinder speed. The bottom pulley was spring loaded to the maximum diameter and the upper pulley diameter was changed by a threaded hub that was operated from the cab. The upper pulley was the drive (off the beater shaft); the lower pulley was driven and connected to the cylinder shaft with a double row chain. You could also inter change the driven sprockets for the cylinder to obtain large changes in cylinder speed. Not sure about the MHs but you will probably have to change some belts or pulleys there too. Hope this helps

Tommy

That sounds pretty promising. Maybe they added an adjustable sheave to the beater and an idler to their old design. I think I need to find a 510 to look at. Too bad our public library does not have parts books on the shelf. Thanks

Greg

I assume you have an adjustment on the concave around the cylinder. The combines I worked on also had an adjustment on the rear of the concave near the beater. We usually opened that up a bit later on in the soybean and corn seasons (when everything was drier) to stop some of the seed cracking. Don"t open it too much; it will miss shelling some seed pods.

Tommy