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Order Ford 4400 Parts Online

Re: 4400 pto

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Author  [Modern View]

12-29-2012 14:36:47

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If you can't stop it with a gloved hand... the plates are probably warped. Control valve is also an option but in my opinion an unlikely one.
Normal PTO spin on those things is caused by a bad brake pad or no brake pad provided you can stop it by hand. A block of wood is a rather uncertain way of trying to stop that shaft...


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Ultradog MN

12-29-2012 14:52:57

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 Re: 4400 pto in reply to RodInNS, 12-29-2012 14:36:47  
FWIW, Book says most likely it's 1)a stuck control valve or 2)broken spring in the clutch brake. Mine was neither but a stuck brake piston - full of crud. I fixed it from the OUTside of the tractor but only after having pulled the top cover and checking the control valve, etc.
When I was done the pto still turned constantly but could be stopped with the bare hand. (you have seen the buyer wince when I did that)
Before I could not stop it even with a 2X6 wedged against the 3 pt linkage.

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12-29-2012 17:00:49

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 Re: 4400 pto in reply to Ultradog MN, 12-29-2012 14:52:57  
Most I've seen, my own included... were shoes with missing linings. Again, if you can stop it, probably a brake issue. Spring is certainly a possibility as well as a stuck piston... but if a person can't stop the shaft I'd wager on bad plates. Other way to check that is put a pipe wrench on the shaft with the engine stopped... and see if it will turn the engine.


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