Tractor
Jan 27, 2023 00:20:29 #
Doc Mck
Loc: Terrell,Texas
Doc Mck wrote:
Years ago I had a JohnDeere 730 that had a drum on the right rear side of the engine carriage that rotated continuously. It also had a rear PTO shaft for hooking up a mower, hay baler, whatever.PTO’s on my current 5 tractors is a gear that extruded directly from the main gearbox, fore or aft. I don’t know what term these drums were called to place long belts to operate various farm machines off the tractor engine.
Jan 27, 2023 07:00:50 #
Doc Mck wrote:
PTO’s on my current 5 tractors is a gear that extruded directly from the main gearbox, fore or aft. I don’t know what term these drums were called to place long belts to operate various farm machines off the tractor engine.
The PTO can run a variety ofmachinery!
Jan 27, 2023 12:59:27 #
bikinkawboy
Loc: north central Missouri
The drum shaped affair is known as a belt pulley. On the 2-cylinder John Deere’s like the 730 the transmission clutch was located inside the pulley. The pulley surface is slightly tapered outward from the center down both sides. When running, the belt tries to crawl to the highest portion of the pulley. This taper keeps the belt centered even if both the driving and driven pullies aren’t centered. On old photos of steam engines powering threshing machines you will see the long belt in a figure 8 configuration. This was to keep the long belt from whipping. And the reason for the long belt? It had nothing to do with physics but everything to do with lessening the chance of a spark from the steam engine boiler igniting the dry straw around the threshing machine.
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