PTO

kbeatty · Feb 5, 2012

Have a Farmall M that the pto wont stay engaged. any help or advice would be appericated

Janicholson · Feb 5, 2012

It can be removed easily (I would drive the tractor into a depression, or back it up onto the ramp part of a loading dock to get the front about 18 to25 inches below the rear). This moves the final drive oil to the front allowing the PTO to be removed. Once out you will see a coupling that is moved by the PTO shifter. It is probably worn in the splines or dogs and needs to be contoured to not jump out of gear. It can also be replaced if the system is too worn to fix. Jim

Tony_Idaho · Feb 5, 2012

I have a Farmall 450, so I not sure if this would be the same...

My PTO would turn fine and dandy, but while I was driving, it would just suddenly stop turning. Fought this for a long time, but there was a simple solution once I actually looked at it. Apparently the person that I bought the tractor from didn't believe in cleaning the linkages, at all. So, when I looked it was actually full of dirt where the little lever that keeps the PTO engaged. apparently the little lever was just barely latching so any bump would cause it the come out and the PTO to slowly stop. Once that was cleaned out, never had the issue again.

I hope this could be the case for you, cause I was thinking about tearing into the PTO also, Glad I didn't have to.

Best of luck finding the issue.

Janicholson · Feb 6, 2012

The M he has is a transmission driven (non-Live) PTO. It has a mechanical engagement with a pull rod and lever. Very simple, and easy to diagnose when removed. Jim

PTO

kbeatty

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Janicholson

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Tony_Idaho

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Janicholson

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