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Question re drillings on Best cylinders

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mastersmith

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Post Thu Aug 07, 2014 4:45 am

Re: Question re drillings on Best cylinders

I have run into these in the field many times. The screw was always installed so the screwdriver entered the core cavity to access the screw. When the screw is tightened against the mortise lock body, then the core installed, the core key is required to remove the cylinder from the door. Big pain in my butt as I never had a control key to work with. It adds another level of security to the lock as no one will just swap out the cylinder. I have never seen it used to secure the core in the housing. So if indeed that is its use, the people who installed the ones down my way were not told!
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GWiens2001

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Post Thu Aug 07, 2014 4:49 am

Re: Question re drillings on Best cylinders

mastersmith wrote:I have run into these in the field many times. The screw was always installed so the screwdriver entered the core cavity to access the screw. When the screw is tightened against the mortise lock body, then the core installed, the core key is required to remove the cylinder from the door. Big pain in my butt as I never had a control key to work with. It adds another level of security to the lock as no one will just swap out the cylinder. I have never seen it used to secure the core in the housing. So if indeed that is its use, the people who installed the ones down my way were not told!


Not to mention if you had some monkey tightening the screws in to the SFIC core, if he overtightened it, the core would be bent and rendered inoperable.

Gordon
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Riyame

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Post Thu Aug 07, 2014 4:41 pm

Re: Question re drillings on Best cylinders

mastersmith wrote:I have run into these in the field many times. The screw was always installed so the screwdriver entered the core cavity to access the screw. When the screw is tightened against the mortise lock body, then the core installed, the core key is required to remove the cylinder from the door. Big pain in my butt as I never had a control key to work with. It adds another level of security to the lock as no one will just swap out the cylinder. I have never seen it used to secure the core in the housing. So if indeed that is its use, the people who installed the ones down my way were not told!


Interesting. With the length of the screw in mine and the shallowness of the hole drilled I figured it would have become loose before actually becoming tight enough. Maybe it was just that way on that particular one.


GWiens2001 wrote:
Not to mention if you had some monkey tightening the screws in to the SFIC core, if he overtightened it, the core would be bent and rendered inoperable.

Gordon


Not necessarily. In mine for instance it would have the screw against the bible and allow for normal operation.
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GWiens2001

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Post Thu Aug 07, 2014 6:33 pm

Re: Question re drillings on Best cylinders

Riyame wrote:
mastersmith wrote:I have run into these in the field many times. The screw was always installed so the screwdriver entered the core cavity to access the screw. When the screw is tightened against the mortise lock body, then the core installed, the core key is required to remove the cylinder from the door. Big pain in my butt as I never had a control key to work with. It adds another level of security to the lock as no one will just swap out the cylinder. I have never seen it used to secure the core in the housing. So if indeed that is its use, the people who installed the ones down my way were not told!


Interesting. With the length of the screw in mine and the shallowness of the hole drilled I figured it would have become loose before actually becoming tight enough. Maybe it was just that way on that particular one.


GWiens2001 wrote:
Not to mention if you had some monkey tightening the screws in to the SFIC core, if he overtightened it, the core would be bent and rendered inoperable.

Gordon


Not necessarily. In mine for instance it would have the screw against the bible and allow for normal operation.


Good point, Riy!

Though it would defeat the whole purpose of having an IC system.

Gordon
Just when you think you've learned it all, that is when you find you haven't learned anything yet.
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Riyame

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Post Thu Aug 07, 2014 7:21 pm

Re: Question re drillings on Best cylinders

GWiens2001 wrote:Good point, Riy!

Though it would defeat the whole purpose of having an IC system.

Gordon


If you had certain cores on outside doors for instance you wouldn't want to have drilled out you could have used the screw to ensure they stayed in place.
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escher7

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Post Fri Aug 08, 2014 6:46 am

Re: Question re drillings on Best cylinders

mastersmith wrote:I have run into these in the field many times. The screw was always installed so the screwdriver entered the core cavity to access the screw. When the screw is tightened against the mortise lock body, then the core installed, the core key is required to remove the cylinder from the door. Big pain in my butt as I never had a control key to work with. It adds another level of security to the lock as no one will just swap out the cylinder. I have never seen it used to secure the core in the housing. So if indeed that is its use, the people who installed the ones down my way were not told!


That would make sense to secure the cylinder, but as with the others, the set screw in mine are inserted from the outside and are too short for anything other than to tighten against the core. I wonder if this would prevent the control key from removing the core? And if anyone picked to control it would protect against removal, reading the pins etc.
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quabillion

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Post Sat Aug 09, 2014 10:12 pm

Re: Question re drillings on Best cylinders

escher7 wrote: I wonder if this would prevent the control key from removing the core? And if anyone picked to control it would protect against removal, reading the pins etc.


Yes it prevents the control key from removing the core. you would need to disassemble the lock to the point of having the housing in your hand, then loosen the screw and then use the control key to remove the core. In this way the control key by itself cannot be used to open the door like in most SFIC systems where you can remove the core and use a screwdriver to unlock the lock.
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