Yale series 805 key pin question.

cowboyup

Does anyone know why Yale sometimes (not always) puts an oversized
key pin in the 4th chamber of their series 805 push key locks?
The tip of the key has a strait cut instead of the typical cut at the tip.
Thanks,
Rick

Pschiffe

cowboyup wrote
Does anyone know why Yale sometimes (not always) puts an oversized
key pin in the 4th chamber of their series 805 push key locks?
The tip of the key has a strait cut instead of the typical cut at the tip.
Thanks,Rick

Perhaps that last pin actuates the shackle bolt? These padlocks are more easily opened by pulling on the shackle rather than by pushing on the key.*

*Quote from Yale Padlocks and Auxiliary Locks catalog, page 10, 1940.

Pete Schifferli

[unknown]

cowboyup

Pschiffe wrote
Perhaps that last pin actuates the shackle bolt? These padlocks are more easily opened by pulling on the shackle rather than by pushing on the key.*

*Quote from Yale Padlocks and Auxiliary Locks catalog, page 10, 1940.

Pete Schifferli

Only some of these locks have the over sized pins. Some have all 4 key pins
the same size.

I used that quote with an Ebay customer who purchased a restored push key
lock from me. He was very unhappy and sending me messages saying the lock
did not work and he wanted his money back. His problem was that he kept trying to just turn the key without pushing. Hard to believe, eh? I sent him 2 or three messages trying to explain the operation to him but he just didn’t get it until i sent a screen shot of that quote from the Yale catalog. Now he’s a happy customer who has purchased multiple
locks from me.

Thank you and have a great weekend,
Rick Guenther

[unknown]

YALE7750

I believe the oversize pin prevents tilting of the key when pushed, a problem that was eliminated with the later corrugated and paracentric keyways. I have one of these locks with the oversized pin (although I had no idea that was how it worked until I found this site and saw the pictures) and cannot find any other obvious function for this pin.

cowboyup

In the Reeds manual they say that the oversized pin was to keep the key flat in the keyway.
Any number on the keyway startng with Y has the oversized pin.