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Wish my Dad was still here, (JD thresher question)

S

soder33

Member
I had a question on the old John Deere threshing machine today, but since my Dad passed away 6 years ago, I am hoping someone here may know.
Was the John Deere thresher set up for the John Deere tractor. What I mean is was the pulley on the thresher set up for the RPM on the pulley of a John Deere. My Father used to run it off the old JD D and it worked just fine. That was sold off so now it would need to run off a Farmall M or something newer. Thanks
 
Did all of the old Deeres put out the same belt speed? A couple of years ago we took a styled D off of a thresher and put a Deere R on the belt. The R couldn't be run wide open like the D was or the separator would have been over sped. You might be able to find the right sized belt pulley for the M to match it up.

Not to hijack the post, but this reminds me of a story dad told. He was working for a farmer pitching bundles back in the early 40's. The tractor on the separator was some big old Hart Paar or something like it. The big old tractor quit running so the farmer dad was working for offered to put his new M Farmall on the belt. The owner of the machine said the M wouldn't be able to run it but they still put the M on. Dad said the M purred along just fine and handled the separator with ease. The next year the separator owner had an M. Jim
 
Except for the H the two banger Waterloo Deeres like the A and B and D and G etc had the pulley on the crank and they ran at maybe 800 to 1200 RPM (I dont have the specs handy) so Id say any of those with sufficient HP and correct pulley diameter would work, although I believe the R ran at somewhat lower RPM s so I cant say on those????

John T
 
Belt speed is like PTO speed standard at the rated speed of the engine. 540 or 1000 Rpm. I think belts are feet/min.? anyway yes it will work fine, on need to paint the M green.
 
When I was a kid I was around several thresher, shreders,silofiller. and forage blowers run with a varity of tractors. It seems the operator new by the sound when it was at the correct operating speed. We had a neighbor that runa Yellow Kid Thresher with a Allis B also a Rosenthal Corn Shredder. I haulded bundles to both of them. gitrib
 
If the belt speed, ft per min, is close to the same it will be fine. If the M has one of the larger pulleys, the belt speed may be too high and therefore machine run too fast and it will appear to be under powered. There are different size pulleys for an M. I remember Dad having the H on a ensilage chopper, blower and it worked the dog out of that H. I think it had too large a pulley but not way I can prove it now. I was just a kid then, what did I know.
 
The A,B, and D all had different sized pulleys, probably intended to equalize the belt speeds. Don't know about the G. The R did run slow, 975 RPM's as I recall but the pulley appears to be the same size and an A, which runs at the same RPM's as the R. Jim
 
I can not lay my hands on the information right now, but if memory serves, the correct belt speed for machines of that era were an industry standard of about 600 to 650 feet per minute.
 
this is my experience, the D runs slower than the M . so if using the M you cant run it at wide open throttle. you can watch the feeder chain clutch as throttling up , then when it starts turning give it a hair more throttle and call it good. thats the way i do it. dont want the machine running too fast. i have run my machine with a few diff. tractors but when i tryed the D on it it did not even have enough rpm to get the feeder chain turning. there is diff. pulley sizes for the machine ,but i dont want to start changing it.
 
Actually, the belt speed standard was in the neighborhood of 3000-3300 feet per minute. This was controlled with different size pulleys for different tractors. You will want your cylinder on your thresher to run in the 1000 rpm range. You can calculate the speed you will run or get an rpm gauge and find out directly. Mike
 
Getting away from the Thresher scenario and onto a silage blower.My dad had a Fox apron feed Silage Blower and our silos all were 60 footers.The one tractor we had that would hum while powereing the blower was our Oliver 88. No loud tractor howl and the blower would just hum. We had a couple of old Oliver 77"s and both had downspout straight pipes.If the occasion came up where one of the 77"s had to run the blower boy what a howling could be heard 1/2 mile away. The 88 ran so smooth and it had a good muffler. It also must of had a different size pully than the 77"s as it only had to run 1/2 throttle to throw the silage 60" up the pipe into the silo. Later on after I left home dad got a PTO Fox blower and it seems to me that it was very noisey.
 
My Dad ran a John Deere separator with a Farmall M with 10 1/2 - 11 inch pulley, which has a belt speed of about 2800 feet per minute at full throttle. Threshed for several neighbors and did a fine job, as I can remember. Farmall M had an optional 13 pulley which gave a belt speed of somthing over 3000 feet per minute. He always tried to have cylinder speed of about 1000 rpm.
 
My late father and his brother owned a Case thresher and I remember them using several different tractors to power it, including a JD D and a Case DC. According to Rummy"s John Deere Page, the engine rated RPM (which would be the same as the belt pulley RPM) on A, G, and AR was 975; D was 900 and the R 1000. The B was the fastest (with the exception of the H,L,M) at 1250. Don"t know how accurate these figures are, just what I have on a reference sheet.
 
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