Pto extender

Mike Czok · Wednesday at 9:35 PM

What does vibrate hammer mean

RayIN · Wednesday at 11:21 PM

That locking pin is fully extended, meaning it locked the extension onto the PTO shaft. Will the locking pin push in all the way? If so, there will be approx. 1/8" still sticking up.
I suspect by "tapping it on" the larger part of the pin is now swedged into the circular groove, so removing the pin is vital to getting the extension off.

Mike Czok · Thursday at 9:36 AM

The pin will not move. I have tried hammering on it and nothing. How do I get it out?

zzvyb6 · Thursday at 11:14 AM

Last resort in my view: Angle grinder with a cutting wheel: Slice it and crack it off. To me, It's not worth the time, trouble, damage, frustration, or cost. Find a new drive shaft of an appropriate length and make some chips. Guaranteed you'll need to use it more than twice.

CH4Ohio · Thursday at 1:24 PM

If the pin won't budge -- you can't tap on it and get it to move -- then that's your problem. Do you think it got jammed up when you were "tapping" on the extender to put it on the shaft? Was it depressed (pushed in) when you started this extender on the shaft and DID YOU SEE IT DROP INTO THE GROOVE and extend when you got it "tapped" into this position?

Shouldn't take a lot more force to remove it than it did to tap it on . . . but if that's locked into the detent on the tractor's pto shaft, you'll have to start there.

I've never taken one apart, but it looks like removing the C-clip on the pin would be the first place to start. Then I'd pull on the top of the pin with some channel locks or vice-grips or get a screwdriver under the head of it and tap lightly. If it won't move in that direction, try tapping it in the other direction. Spray liberaly with penetrating oil along the way. Once it starts moving, use a punch to drive it out. If you hit resistance that's enough to worry you, turn it over and try driving it the other direction. There must be a pretty simple way to get that spring-loaded pin out of the housing. It must be jammed against the splines but hard to say which direction you need to go.

Unless the pin is "locked" and holding it on, I still say that tension on a ratchet strap and then tapping on the sides of the extender should get it to release.

Fxfymn413 · 2025-09-29T08:08:35-0400

If all else fails go back to where you bought the extender and examine how the detent works. That should give you the knowledge you need to correctly disassemble your extender.

zzvyb6 · 2025-09-29T08:20:42-0400

Just take a thin wheel die grinder and split the thing into 2 halves to remove it. Anything you do now is only going to worsen the damage to the splines on the tractor shaft (If it's not already wickered up). The pin is in a tight position and the extender is not in home position, so the pin is fubar. Shaft probably, too.

WinterDeere · 2025-09-29T08:23:10-0400

zzvyb6 said:
Slice it and crack it off. To me, It's not worth the time, trouble, damage, frustration, or cost. Find a new drive shaft of an appropriate length and make some chips. Guaranteed you'll need to use it more than twice.

^ This. I would never even consider hammering on or pulling on my tractor's PTO stub, without at least understanding how it's captured, since every one has different internals and different susceptibility to axial push/pull forces. Last thing you want to do is damage a ball or roller bearing that's not designed to take axial loads.

You said you had to hammer it on, which would have been the time to prevent this, they should always slide on easy. Whether it was a bent pin causing you to have to do that, a burr on your tractor's PTO stub, dirt, or just a badly made extender... who cares?

Cut the stupid pin assembly off the extender, and get the pin out. If it doesn't come loose after that, I'd try grabbing the PTO stub with a bearing splitter first, so that I'm only prying against the small collar that's machined right onto the stub. You never want to pull a stub by prying on the housing.

If bearing splitter fails, I'd probably try to figure out how deep the socket in the extender is (buy another and measure), then cut off 1/2" longer than that, drill and tap a hole in what remains, and use a bolt to "push" the extender off the stub like a gear puller.

Everytime I see people in these threads recommend prying or pulling on a PTO stub, I remember why I don't buy used tractors, anymore. Too many farmers thinking they're mechanics.