Some PTO problems

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larryfoster
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Re: Some PTO problems

Postby larryfoster » Sat Jun 18, 2016 7:31 am

Thanks, Dale.
Looks like a new shaft is in order
I can't even see that those "stakes" would come out.
I know they're supposed to if that's what I have

Bob McCarty
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Re: Some PTO problems

Postby Bob McCarty » Sat Jun 18, 2016 8:14 am

If the splines are still in good shape, you could have the snap ring groove cut on a lathe. However, a new one might be cheaper if you don't have access to, or a friend with a lathe.

Bob
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we need to think differently."
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larryfoster
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Re: Some PTO problems

Postby larryfoster » Sat Jun 18, 2016 8:20 am

My machinist is off with cancer.
I can get a new shaft today, I think.
I'd like to support the forum supporters and do when I can.

larryfoster
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Re: Some PTO problems

Postby larryfoster » Sat Jun 18, 2016 1:49 pm

FYI.
The local parts guy is out until Thursday and TM parts is out also.
I would have gotten it from TM

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Glen
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Re: Some PTO problems

Postby Glen » Sat Jun 18, 2016 8:16 pm

larryfoster wrote:Thanks, Dale.
Looks like a new shaft is in order
I can't even see that those "stakes" would come out.
I know they're supposed to if that's what I have


Hi,
Thanks for the pic of the PTO shaft. The stakes do not come out, they are part of the shaft. The marks on the shaft are old staking that held the bearing on, they get pushed down, or broken off as the bearing goes off over them.
Staking is done by first putting a new or good bearing fully on the shaft, then hold the shaft upright with the small end up, might need another person to hold it. Then you use a hammer and small punch and hit on the shaft to move metal back against the bearing, so it looks like in my pic on page 1. You are moving metal that is part of the shaft back against the bearing in a spot the size of the end of the punch. I think IH had 3 stakes on them, equally spaced around the shaft.
The spline end of the shaft has to sit on something solid metal, a large vise, or something. You can put it in the vise, but be careful with the bearing, tighten the vise only a little. Might need someone to hold the end of the shaft.
If the shaft still looks good, if the splines are still good, and not worn, and the pilot bushing end is smooth and not worn, you could use the shaft again, but it's your choice. :)

larryfoster
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Re: Some PTO problems

Postby larryfoster » Sat Jun 18, 2016 8:20 pm

Glen, thanks for sticking with me and providing all the detail.

That is informative.
So, all I need to do is whack it?
In 3 specific places?

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Glen
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Re: Some PTO problems

Postby Glen » Sat Jun 18, 2016 8:54 pm

Hi,
Yes, you hammer on the punch. It takes a little time to do it, the shaft is hard, and you are moving the metal.
Yes, in 3 places. :)

larryfoster
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Re: Some PTO problems

Postby larryfoster » Sat Jun 18, 2016 8:57 pm

Thank you.
Sounds like a Father's Day project.

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Re: Some PTO problems

Postby JohnMihevic » Sun Jun 19, 2016 8:17 am

When I replaced my PTO bearing, I didn't realize that it had to be staked. The fit between the shaft and the bearing was very tight and the bearing was hard to drive on. I have used it and the PTO operation seems O.K. I am watching the shaft. It does not seen to be moving outward. Has anyone left it not staked?

John M.

larryfoster
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Re: Some PTO problems

Postby larryfoster » Mon Jun 20, 2016 9:31 am

I may have gotten mine staked.
At least the shaft no longer moves in the bearing.

Now, to get it hooked back up to try.
Having a little trouble getting the shifter to work in the clutch with my old, fat, stiff fingers and poor eyesight.

I used a big nail set and didn't have very large "stakes" but it seems to be better.

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Glen
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Re: Some PTO problems

Postby Glen » Mon Jun 20, 2016 6:16 pm

Hi,
Look in through the transmission oil filler plug hole, with a light, and you can see the parts, to put it together. I think I wrote that in a post on page 1. :)

larryfoster
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Re: Some PTO problems

Postby larryfoster » Mon Jun 20, 2016 8:37 pm

Old eyes and fat hands, Glen.
Did get it together and that fixed some.

New belt stopped it coming off the pulleys.
It still ground and got stuck where it couldn't go in or out.

Took the shifter guide off and held the shifter lever in place by hand and it worked pretty good.
I think I need a new shifter shaft, collar, lever and seal.
Holes are pretty worn

larryfoster
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Re: Some PTO problems

Postby larryfoster » Thu Jun 23, 2016 11:56 am

Holy cow are those parts expensive!!!!!
The lever and shaft with the shifter rod were over $100.
Knock me over with a feather.

However, as someone mentioned above, the new shaft is a lot different than the old one.
Hopefully, that fixes me up

larryfoster
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Re: Some PTO problems

Postby larryfoster » Fri Aug 26, 2016 5:31 pm

This saga continues.
Finally got the new shaft and shifter rod in.

Mowed 20' in higher grass and it jumped partially out and started grinding.
Haven't replaced the shaft and flying saucer bearing yet and will check to see if the existing bearing needs re-staked.

I keep wondering if I'm getting the set screw too loose or too tight and if this would have any effect.

Thanks, in advance, again

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Glen
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Re: Some PTO problems

Postby Glen » Fri Aug 26, 2016 7:40 pm

Hi,
Too bad it still isn't working right. The splines do wear out after many years of use, at least on some of the Cubs, some don't have problems and some do, that I have seen.
You could try replacing the PTO clutch, if all the PTO shifter parts are good, and not worn.
A man wrote on here a few weeks ago that he had problems with his PTO slipping out of engaged, he replaced everything before it would work right again, the long clutch shaft, PTO clutch, PTO shaft, etc.
If the splines are worn at an angle, or worn off some, it won't work right.
The set screw at the PTO clutch has to be not tight, so the PTO clutch will slide freely on the shaft, almost against the shaft, so the clutch does not slide off the end of the shaft when you put it together. :)


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