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Ford 5000 PTO won't disengage

J

JF in MI

Well-known Member
This is our airport tractor with a 15' Woods bat wing mower on it. Was mowing for 3 hours with it and when done the PTO would not disengage. The lever moved and felt normal
but the mower kept turning and would not stop. The service manual is at my neighbor's house and he's away for 2 to 3 weeks. Anyone have any suggestions as to what is going on
here? Without the manual I have no idea how it is supposed to work. Thanks in advance.
 
Stop the engine, the blades will stop. If you restart the engine and the PTO is turned off and the PTO doesn't turn, You have a Broken brake band and the rotation of the blades keeps it turning. If you start the engine and the blades turns with the PTO lever off, you have welded the discs in the clutch pack or the clutch piston is stuck. IF you turn the PTO Off with a Rotary cutter running very fast it will snap the brake band every time. Shut the engine off with PTO engaged and when it stops turning take the PTO out of gear. I have replaced dozens and dozens of them. Requires pulling the lift cover, unless it has load monitor, then that's a different story.
 
Given the fact that you must have been working it hard with a 15' mower, I'm going to say that you had some slippage going on inside while you were mowing, and now the clutch stack is basically welded together. Unless it's a later tractor with Load Monitor, clutch pack is easy to access after removing the 3-point lift cover.
 
Most 5000s did not use a brake band, but rather a brake pad. These pads were not very effective at stopping the PTO even in the best of circumstances.
 
Bern's right. Those little brake pads were marginal, at best. I've never seen the clutch pack on a 5000 weld. Destroyed; yes.
 
I had one that the clutch pack was either welded or warped. Bought it that way, so I can't say how it happened.
 
Welded probably wasn't the right word. More like severely warped would be better. Seen lots of those. In really bad cases the friction plates start to transfer their material to the steel plates. That's where the welding comes in.
 
This one never 'braked' as the PTO was turned off but just took a few seconds (maybe about 15) to wind down. Now it won't even do that. I'll check it again this morning now that everything is cold and report.
 
OK, started the tractor cold this morning and the PTO was not engaged but seemed to "drag" (barely turning). Engaged it then disengaged it and it stopped turning. I'm guessing there is no kind of "adjustment"? This tractor is a '64 IIRC so I don't think it has a PTO brake.
 

64? Is it a regular Ford 5000 built for 65-75 or the 62-64 Fordson Major based 5000?
We put a new brake in my 66 5000 two years ago, it's already worn out, the clutch plates are probably worked and dragging.
I've picked up everything to convert it the a band brake, just haven't had time to tear into it yet.
 
I'm thinking it's a '65 'cause it has the headlights on the side instead of in the grill. Is that right?
 

If it's a Ford 5000 there's 3 rows of numbers stamped on the flat area of the clutch housing just behind the starter.
Scratch any crud off and find those numbers then list them here.
We'll be able to tell you what model it is and when it was built.

Should look something like this


mvphoto39811.jpg
 
To the best of my knowledge, all 5000s had the pto brake, at least they did when I worked in the tractor shop, and all I have worked on since.
 

Yes but they changed from a pawl brake to a band brake on later models which is a better brake.
New pawl brake on my older 5000 lasted less than 2 years.
 
A wise man once told me; Pay attention, you may learn something. I learned something today. I didn't know they had updated the pto brake
system on the late 5000.
 
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