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Best Lock/Schlage door question

puttsy

Well-known member
Joined
Nov 22, 2011
Messages
277
Location
Iowa, USA
Hey all,

Hopefully posting in this section is ok. I've got some questions about the mechanics as well as the tooling used.

I live in a new apartment style lving residence hall on a college campus. The building was completed this summer (summer 2012) but, the structure was up/enclosed by beginning of winter 2011.

Well, they installed Schlage ff series door knobs that use Best Lock IC cores. Last week I got locked out of my bedroom without locking the door--no, they aren't automatic locking. Locksmith came and used a tool that had a cylinder looking side and a half-cylinder looking side (What is that tool!?). He tried his master key, my key and he said that it was unlocked but, the handle/mechanisms seems to still be locked. After pulling the core and fighting with the mech. with his cylinder tool, he said it's just not doing it. He was hoping to get extra leverage with that tool--didn't seem to work. Finally, he torqued on it and the mechanism broke free. I asked him if he'd ever seen it before and he said it was a first (and grumbled that they should have used deadbolts on the doors. That way you could at least manually retract it) but that he was going to look into it.

Today, however, the same thing happened to my roommates door except that he HAD locked it. He could unlock the core but, the handle still acted like it was locked. I tried and it showed the same problem as my door. It's like the handle is locked but the core isn't. New locksmith comes, does about the same thing, so I ask if HE had seen it and that my door had the same problem a week ago. He said not yet but, "I think we'll have problems with all of them. Usually a little lube frees them up and gets them back but, we'll see." This locksmith was a little rude and short but, the roommates showed him little respect--kept playing their music, hooting and hollering, and overall being college guys.

My question: Why would something like this be happening on locks/mechanisms that are less than a year old, or, installed for less than a year? I could see if it was the building shifting but, they are steel frames with solid wood doors so shifting THAT dramatically (in a commercial structure anyway) seems a bit alarming and unlikely. I am actually quite fascinated by the Best Cores and the whole mechanisms but, don't have a practical reason to really play with them. (I've got a few cores from another project but, don't have a use for them yet or, the tools to play with them)
 
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jeffmoss26

Well-known member
Joined
May 25, 2011
Messages
12,856
Location
Cleveland, Ohio
The tool you're talking about is this:
ictool_zps92b04709.jpg

The long side his used for operating lever/mortise/rim/padlocks when there is no core installed. It can also be used to screw a mortise housing into a mortise lock.

I have a much simpler version made from the plug of a core and an old key.
 
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puttsy

Well-known member
Joined
Nov 22, 2011
Messages
277
Location
Iowa, USA
Thanks Jeff!

That would be it! His had something sticking out the other side that he used to "line up" the pins on the plug to fit the cylinder in...yes, I asked him. He was probably tired of all these questions from a long haired college kid but, he was still responsive and remained kind. That was the first guy though, it was just me and the girlfriend in the apartment and we kept things quiet so he could concentrate.

A bundle of keys, that tool, and a pair of Knipex Cobras is all he seemed to have with him. And a spare core or two.
 
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spotco2

Well-known member
Joined
May 18, 2012
Messages
1,050
Location
NW Georgia
Sometimes if the strike plate is not aligned properly the deadlatch (little D shaped piece on the flat side of the latch) will fall into the hole in the strike plate on the door frame. This creates pressure on the latch and makes it very difficult to open a door.

Look at the latch. It is made of 2 pieces, the spring latch that is flat on the back and beveled on the front and the deadlatch that is on the flat side of the spring latch. With the door open, you should be able to push them both in at the same time with your finger. Push in the deadlatch (D shaped part) and it should lock the spring latch in place so that you can not push it in with your finger.

When the door is closed and everything is aligned properly, the spring latch should fall into the hole in the strike plate but the deadlatch should NOT go into the hole. The is what stops people from being able to loid the door open with a credit card. If the door is slammed hard, the deadlatch might fall inside the strike plate hole creating excess pressure.

I've never seen a Schlage F series with Small Format Interchangeable Core cylinders. If it IS an F series, those latches are complete **** and fail on a normal basis. What is probably on the door is something more like a Schlage AL series with a SFIC prep. It's very rare for these latches to fail.
 

Outlawmws

Well-known member
Joined
Aug 9, 2011
Messages
39,240
Location
The Badlands
There are two ways besides strike plate misalignment to get the bolt part sticking; the building can "settle" (They are actually "floating" on the dirt, and water levels/freezing/etc can make them shift quite a lot) so the door is not square in the frame and they can also be a bit "sprung" on their hinge/door frame to put a load on the bolt. Then there is weather stripping that can add pressure.

Sometimes just pushing/pulling on the door to a more closed position while unlocking can free the bolt.
 
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puttsy

Well-known member
Joined
Nov 22, 2011
Messages
277
Location
Iowa, USA
There are 96 rooms in the building so, if it was settling, wouldn't other doors have the same issue? Or, can there really be that much shift in specific areas? And, if that is the case, is it normal for a commercial structure to settle that significantly without causing other issues like cracked pipes, broken ducts, etc...? That's just curiosity getting the best of this cat but, I'd rather know then not--Fun table conversation.

A couple pics of the door if you're curious and, can identify it based on visuals.

Attached are the 4 angles in case you're interested in the setup.

Here is the side where the mechisim is which has, as far as I can tell, the closest to a model (Ff). Next would be to unscrew the plate but that *should* be a no-no in a government building. [Public University]

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bat 501

Member
Joined
Feb 27, 2013
Messages
19
Location
texas
Buildings shift all the time. Some more then others. And some rooms more then others. There does not have to be much shifting to mess with a door. Our house shifts every winter and messes with the doors. You cant see that its moved but if I put a level on it I can see that it has maybe moved 1/16" in 4'. And on a door that is 7' tall that 1/16" can make a huge difference.
 
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