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4400 pto


 
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BOBILL
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PostPosted: Sat Dec 29, 2012 11:07 am    Post subject: 4400 pto Reply to specific post Reply with quote

i have a 4400 ford with independent pto the problem is the pto always runs no matter lever is i even tried to stop it with apiece of wood with no luck any help i would be greatfull
 
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souNdguy
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PostPosted: Sat Dec 29, 2012 2:18 pm    Post subject: Re: 4400 pto Reply to specific post Reply with quote

if it is actually staying engaged with the hyd clutch pack unpowered.. I'd check to see if the discs warped or something piled up.
 
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Ultradog MN
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PostPosted: Sat Dec 29, 2012 2:20 pm    Post subject: Re: 4400 pto Reply to specific post Reply with quote

This can be caused by a few things. Most likely it is a sticking control valve at the handle. C
But it is way too complicated to write it all out here.
What repair manual/s do you have for that tractor? You MUST have at least the small (150 page)
I&T FO-31 manual and spend some time studying it and THEN ask your questions here.
You will also need a gauge that will read about 1000 lbs.
You will need to pull the lift cover off to check the pressure.
This site sells both the manual and the lift cover casket which you will need.
If you have a credit card you can call them at 800 853 2651 and get them shipped to you.



The gauge can be ordered from Northern tool. You will need to make up a couple of fittings to get it to hook up into your tractor. Napa should have some brake line and fittings that will do the job.
I had the same problem about 3 or 4 years ago and figured it out with the help of this board.
You can too.


Gauge on Northern Tool

 
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Ultradog MN
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PostPosted: Sat Dec 29, 2012 2:22 pm    Post subject: Re: 4400 pto Reply to specific post Reply with quote

Don't scare him Smile
There are several things to check before worrying about the clutch pack.
 
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RodinNS
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PostPosted: Sat Dec 29, 2012 2:36 pm    Post subject: Re: 4400 pto Reply to specific post Reply with quote

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...

Rod
 
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Ultradog MN
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PostPosted: Sat Dec 29, 2012 2:52 pm    Post subject: Re: 4400 pto Reply to specific post Reply with quote

Rod,
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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souNdguy
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PostPosted: Sat Dec 29, 2012 3:03 pm    Post subject: Re: 4400 pto Reply to specific post Reply with quote

sorry.. :)

i guess the first thing is to see if the lever for his pto is actually actuating the valve itself...
 
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BOBILL
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PostPosted: Sat Dec 29, 2012 3:06 pm    Post subject: Re: 4400 pto Reply to specific post Reply with quote

i have a ford reair manual fore got all about it the tractor was all apart and sat for 10 years with no oil any where rear end,trans,thnks for the help im going to check pressures thak you
 
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RodinNS
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PostPosted: Sat Dec 29, 2012 5:00 pm    Post subject: Re: 4400 pto Reply to specific post Reply with quote

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.

Rod
 
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