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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