Posted by John B. on May 28, 2009 at 18:57:58 from (38.114.64.169):
In Reply to: PTO Over run Clutch posted by Chris (UK) on May 28, 2009 at 06:50:54:
When you're mowing the engine is the driving force. When you press in the clutch you seperate the transmission from the engine. The PTO and transmission still stay meshed together thus the mower becomes the driving force until all the momentum is used up from the spinning blades. They act as a flywheel. This is why they invented the overrunning clutch. It's called a sprag in automobile automatic transmissions. It's also used in the front hubs of 4-wheelers to lock in the 4 wheel drive.
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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