Farm Equipment - off color pto question -MM

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off color pto question -MM

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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=128561
Printed Date: 22 Dec 2025 at 1:33pm
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Topic: off color pto question -MM

Posted By: JC-WI
Subject: off color pto question -MM
Date Posted: 09 Sep 2016 at 6:33pm

Been messing with an M5 Moline, the pto runs constantly... and has no brake in it...
Gotta shut it off to put the pto shaft on, and then it runs the machine after you start it in off position.
What is wrong with it? warped disk plates? Shelled lining piled up? To heavy oil?
Snaps in nice and crisp...and snaps out nice too, but it won't stop turning.
Help! - Need parts diagram to see what I am dealing with and possibly a place to read how to repair assembly. Thanks...

While I am asking about the PTO, I might as well ask if there's a complete 3pt assembly with dual remotes to put on this M5. Thanks, JC

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He who says there is no evil has already deceived himself
The truth is the truth, sugar coated or not. Trawler II says, "Remember that."

Replies:

Posted By: CrestonM
Date Posted: 09 Sep 2016 at 8:13pm

So it snaps on and off, but keeps spinning...If you have a load hooked to it does it keep turning that?

Reason I say that is grandpa's 4020 PTO always spins when it's disengaged, but it's not very fast, and you can stop it with your hand.

Posted By: JC-WI
Date Posted: 09 Sep 2016 at 9:15pm

Creston, when the tractor is off, you can turn the pto by hand but is very stiff, when running, your not stopping it by hand.

-------------
He who says there is no evil has already deceived himself
The truth is the truth, sugar coated or not. Trawler II says, "Remember that."

Posted By: Dan73
Date Posted: 09 Sep 2016 at 9:44pm

Does it have a hydraulic clutch? The hydraulic pto clutch failing on an ih can do what you discribed. We had to replace the pto clutch in our ih 986 every few years when we used it hard on our chopper.

Posted By: JC-WI
Date Posted: 10 Sep 2016 at 10:11am

Mechanical over center clutch, but I don't know if there is suppose to be a brake on it.. If there is, it sure doesn't stop it.

I know on the 190 with hydraulic clutch, you don't want to grab hold of that while turning... gotta use the brake on it.

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He who says there is no evil has already deceived himself
The truth is the truth, sugar coated or not. Trawler II says, "Remember that."

Posted By: shameless (ne)
Date Posted: 10 Sep 2016 at 5:26pm

our old VAC case always turned too while engine was running. it also had an in/out lever. when something was hooked to it, it wouldn't run the machine until you engaged the lever. but when nothing was hooked to it, it would still turn. was never a problem. was like that all the years we ran it (about 40 years).

Posted By: Adam Stratton
Date Posted: 10 Sep 2016 at 9:43pm

I had a 670 Moline acted just like that. I hooked it up to a 20' bush hog and started it up. It turned the blades, started mowing, still turned, got in some heavy stuff and it stopped turning. Shoved the handle in and kept mowing. After that it would still drag some, but you could stop it with your foot if you needed to.

Posted By: Kenny L.
Date Posted: 11 Sep 2016 at 4:45pm

JC if I remember right there is a brake and there need to be preload on them to work but if you truly what the right answer call Dale Seehaver in Princeton,Wis 920-295-3278 River Dale Farmms. HTH Kenny L.