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Old 08-06-2016, 12:45 PM   #1
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Can't get tension pin out


Hi, I guess this is the only forum that applies to metal, so posting here.

I am trying to remove a tension pin that is completely stuck. Tried everything, tapping (broke my nail set), drilling just elongates the hole and doesn't cut through the pin.

Any ideas on how to get this stubborn thing out without further damage?

To make things more difficult, the center shaft with the pin is spring loaded and wants to retract into the sleeve. For the photo it's being held in a vise.

Thanks for any help





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Old 08-06-2016, 01:16 PM   #2
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Re: Can't get tension pin out


You place a piece of pipe ( 1/4" if available ) on the anvil of the vise for the protruding portion of the roll pin to enter and support the shaft solid. Did I say solid support, yep, thought I did. Then you get a pin punch, that should have been used to begin with, the size of the hole minus a few thousandths and drive it out. There are special made pin punch sets available but I've never found them to be needed.
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Old 08-06-2016, 01:18 PM   #3
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Re: Can't get tension pin out


Exactly.If you don't have a punch the correct size you might clamp some vise grips on the protruding end and heat with a torch.Twist and pull.
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Old 08-06-2016, 01:35 PM   #4
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Re: Can't get tension pin out


OK, thanks for the advice. Once I get it out and go to pick up a replacement pin, am I looking for something that is just snug or something that takes more work to get in? And lastly, is there a decent way to put in the new pin without a special tool meant for that purpose?
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Old 08-06-2016, 02:33 PM   #5
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Re: Can't get tension pin out


Those are roll pins .Measure the old one and get the same size.They should be tapped in with a hammer.
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Old 08-06-2016, 03:24 PM   #6
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Re: Can't get tension pin out


Roll pins are made oversize, to fit snug in a standard size hole. So if the pin is in a bin that says 1/4" roll pins, it will be oversize but fit properly into a 1/4" drilled hole.
But that could be a metric pin. Bring the old one to check when you get the replacement.
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Old 08-06-2016, 04:20 PM   #7
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Re: Can't get tension pin out


I'd grind that side that's all bent until it's flush with the shaft, then use the suggested drift pin punch.
I have a set of what's called transfer punches that I use on roll pins because they have a point in the center of the tip that keeps it in the middle of the pin.
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Old 10-09-2016, 07:54 PM   #8
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Re: Can't get tension pin out


If you heat the solid iron the roll pin is in with your acetylene torch, it might help a bit. Your still gonna need to cut it off flush, and use a punch to get it out. Use a SOLID vise, not something crappy mounted to a wobbly wooden table. You don't want the wood to absorb the energy from the ball&peen hammer.
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Old 10-09-2016, 08:33 PM   #9
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Re: Can't get tension pin out


I was able to get it out with a pin punch and a good vise mounted to a sturdy bench. The pin punch did actually bend in the process but I managed to bend it back without snapping it off and eventually got the pin out. Using the right tool for the right job did the trick. Thanks everyone!
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