Alternate method of Yale LFIC removal without control key

[Securityman76]

I was messing around with a couple of Yale Ic locks and thought “hmm I wonder if I could use a percussion attack to retract the control lug”. So I did the following steps: insert operating key or pick the lock and turn plug to roughly 15 degrees, the same amount as the control key would turn, then take the lock housing and strike it against a hard surface (wood or plastic will work as I didn’t want to damage my lock) with the impact occurring on the right side, a few HARD whacks should dislodge the control lug and allow the cylinder to drop right out. The lock housing or lockset will need to be off the door for this to work. A padlock would only have to be unlocked from the hasp for this attack. I tried my other core and the same thing happened. The reason this works is because the control lug just has a friction pin, no detent to lock it into place, this allows the impacts to inch it back, the core has to be turned 15° to allow the control lug to fit into the cutout on the back of the plug. Let me know if this works on your locks. Here is a link to a YouTube video I did on this method:
https://youtu.be/G5f-MLtPA54?si=kCdhJARlKqly6rjc

[FranklyFlawless]

Thank you for sharing this method.

[GWiens2001]

Very nice! I may have to give that a try myself.

Gordon

[billdeserthills]

Very cool,
I'd love to hear what Yale thinks about this

[Pintickler]

That is great ! Thanks for sharing. I wonder if it works on other ic core locks.

[demux]

It won't work on SFIC, on those cores the control lug is held positively in place with a dedicated shear line. IIRC Schlage works similarly to Yale so maybe, but I'm not 100% sure. Sargent I think also has a partial shear line so probably not.

[Raymond]

This trick won't work on Schlage either because the key must push up a pin that allows the turning plug to pull the retainer. The pin height is critical also (#7).

[GWiens2001]

This trick won't work on Schlage either because the key must push up a pin that allows the turning plug to pull the retainer. The pin height is critical also (#7).

The control cut is #6, and also the control lug is spring biased in the retained position.

But I suppose if you used a baseball bat and got a good swing...

Gordon

[demux]

But I suppose if you used a baseball bat and got a good swing...

Well, there's probably at least a few other ways to get through if that's what you're bringing to the party...

[Tyler J. Thomas]

Very clever! Thank you for sharing! Learned something new today - will try it soon.