With the wood chipper I bought the pto shaft was too short so I bought an extender to extend the splines. Was tough going on so I tapped it lightly. Now I can’t get it off. Also neither end of the pto shaft will fit on this piece or else I would just leave it. How do I get it off and why doesn’t the couplers go on.
Carefully hose clamp the pin in as far as you can. Tap it to ensure it's pushed in ALL the way. Then give it gentle nudges with a hammer. If there is space for a pry bar, try that also. The goal is to remove it without damaging the tractor's pto stub shaft or internal bearings and gear teeth.
It's also possible that the retaining pin became bent internally, and that this prevents it from releasing the coupler. Try rotating the pin 180 degrees to a different angular position so that a bend is away from the stub shaft.
As a final resort, there should be a 'C' clip on the end of the pin, remove it and drive out the pin with a center punch. Then it can be pryed out. (Theoretically). Paint, dirt, rust, and bad tolerancing cause this. I like mine loose. Under power, they stay secure and won't wobble. Worst case is a tight coupler on a heavy CV jointed shaft (that I can hardly pick up the end of, much less put it on or take it off)...
It's also possible that the retaining pin became bent internally, and that this prevents it from releasing the coupler. Try rotating the pin 180 degrees to a different angular position so that a bend is away from the stub shaft.
As a final resort, there should be a 'C' clip on the end of the pin, remove it and drive out the pin with a center punch. Then it can be pryed out. (Theoretically). Paint, dirt, rust, and bad tolerancing cause this. I like mine loose. Under power, they stay secure and won't wobble. Worst case is a tight coupler on a heavy CV jointed shaft (that I can hardly pick up the end of, much less put it on or take it off)...
California
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I would remove the pin, as ZZ said. And figure out how to pry it with equal pressure on the left and right sides.
But it may need to be expanded with heat to free it. I think a torch would risk damaging the tractor. Try boiling water poured over rags wrapped around it. Or if you have a heated cord that is intended for thawing water pipes, wrap that around it. Or wrap the sort of heating pad you wrap around sore muscles. But obviously don't let the tractor's native shaft get overheated. Good luck with this!
But it may need to be expanded with heat to free it. I think a torch would risk damaging the tractor. Try boiling water poured over rags wrapped around it. Or if you have a heated cord that is intended for thawing water pipes, wrap that around it. Or wrap the sort of heating pad you wrap around sore muscles. But obviously don't let the tractor's native shaft get overheated. Good luck with this!
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CH4Ohio
Veteran Member
Put a bolt or screwdriver etc through the hole in the end of the extender and attach a ratchet strap to it. Get the other end secured to something solid and put some serious tension on it. Start with gentle taps with a ball peen hammer. Be sure the button is pushed down and that it’s not locked on. Always works for me.
Some penetrating oil sprayed into the back will also help.
Some penetrating oil sprayed into the back will also help.
scootr
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Sometimes only a slide hammer will do. Looks like a hole where you could put a hardened bolt thru the end and and tap with a hammer
