farm tractor ptos

is there a generic (after-market) pto that can be installed on an existing IH farm tractor?

no

Helps to know what model you are referring to.
A salvage yard may have just what you need.

why dont you just tell us what it is that you want to do.there are alot of smart people on this forum that could help you out.quit beating around the bush

Your question is a little obtuse, so hard to figure out what it is you want to do. Thus the less than helpful replies from us.

Did your tractor come without a pto,
is the pto on it broken and you want it replaced,
or are you just looking for an over running clutch to add to your working pto?
Or is it a 1-1/8 inch shaft & you want a coupler that brings it up to normal modern dimentions?

There are many possibilities, and sometimes it depends on the model of tractor you have.

I'm not quite sure what you really want, so I can't answer the question either.

--->Paul

in U S patent 3,209,604, the inventer claims (in
column 3-line 72 to col.4-line 51, and shown in figure 5)
that a 1-4 HP electric motor shaft
is connected to the "power take-off shaft of a
conventional power take-off unit" of a pre-1960
IH farm tractor to drive the tractor at 1/3-1/8
MPH. thus, when the pto shaft is rotated, power
is transmitted "backwardly" through the pto system to the gears in the housing and in-turn to the tractor wheels.

WHO KNOWS "IF" THIS SET-UP WILL WORK, OR IS IT
A MYTH THAT IS JUST WRITTEN ON PAPER?

Sounds like hes just quoting a patent number and the theory of operation of said pto unit. Does it work? Of course it does, pal!

mechanicly, yes if the pto on the tractor was engaged and outside power was applied to it it would in turn cause the tractor to move, providing the brakes arnt locked on, somewhere in the archives is a story of a poster that used a old gas rototiller engine mounted on the back of a old tractor to rescue it from a island by driving it thru the pto shaft, however you mention using a electric motor, to do this so im courious too because it would take at least 4 hp to move any ih tractor bigger than a cub, if you figure out a way to get it hooked up, they arnt light, and by using electric you would have a limited amount of distance, where the motor was making its rated hp, more than 1 really good quality extension cord and the power output will drop dramaticly, just plug in a decent size electric air compresser to 2 or more extension cords and you'll see what i mean, what are you doing???? courious minds want to know

No idea on if it will work or not, but here's a link to the patent:
Patent

The setup will work with a tractor that is not 'live pto'.

Newer tractors with live or independent pto's it gets a little different - still maybe could work, but gets different. Depends on model.

Some tractors could be damaged if they depend on oil pressure to lubricate certain shafts in the tranny. Old tractors likely don't have this issue, but you do need to be aware of it. Depends, again, on the exact model of tractor you are using.

You will be limited in distance of course by the cord. You will be limited in speed by the size of the electric motor. Smaller electric motor, and you will need to gear it down slower....

To make it work on a non-live pto tractor, put the pto in gear, put the tractor in a gear, couple the electric motor to a gear reducer to slow it down (sounds like the patent is looking for 60-120 rpm speed?), and couple the gear reducer to the pto shaft.

Sit on the tractor, release the brakes, and turn on the electric motor.

Drive the 25 feet the electric cord allows, at 1/8- 1/5 normal speed, and there you go. Tractor will have very little torq, and will not deal with a hill or ramp or any such very well.

--->Paul

Why? There is a ready supply of used PTO's for every Farmall ever invented. Just give the model, and it will appear.


Gene

The Farmall Super A (and possibly other models had the HYDRA CREEPER as an option. A hydraulic drive was connected to the PTO. The hydraulic power came from the tractor"s own live pump.