I need to remove a schlage lock from a door to get it rekeyed

SOURCE: Need to remove the inside door knob from an entry set

I WANT TO REMOVE THE INSIDE KNOB OF MY KWIKSET ENTRY LOCK SET SO I TIGHTEN HANDLE

SOURCE: The door knob (lever door knob to exterior fancy door) came off.

When you first tightened the screws, the mechanism may have been loose enough to allow the actuator bar the connects the inside knob to the outside lever to work loose. When you tightened it you may have jambed that tight so things didn't work. When you disassembled everything, you may have lost that part. The springs are usually integrated into the catch part and are not removeable. Sometimes it helps to take everything completely off the door including the catch that goes in the edge of the door. Then reassemble it on a table to see what works and what doesn't. If that doesn't help, take all the pieces into Lowes at the key desk and they will be glad to help you.

SOURCE: cannot remove an old schlage door knob

It is a small allen key (hex head) that comes with the lockset when purchased. They are just threaded into the handle (knob) and sets into a reset when threaded in. You can take some putty and push it into the hole and gently remove to make a negative imprint of the allen key, go to a local home center like Lowes or H. Depot and match it up. You can buy a set of allen keys that are like a pocket knife with multiple allen keys. Note, it is very thin. An alternative is to purchase another similar Schlage lockset, open carefully, use the key, and return the lockset saying it is the wrong one. Not nice to do, but in this economy every penny counts. I hope this helps and good luck.

SOURCE: My schlage door knob lock tumbler stopped working

if the cylinder in the lock is not turning anymore when you put the key in -- then there could be a stuck pin inside the cylinder. use a teflon or silicone based lubrication and spray into the key hole and cycle the key in and out a few times and then spray some more lube in and cycle the key some more,, spray one more time and let it sit for awhile --- after sitting for awhile, try the key again.
if it still wont turn the cylinder then it needs to be rebuilt,, take the lock down to your local locksmith shop and have them rebuild the cylinder to the key you want. the cost of this is only about 8.00 to 10 dollars ( depending on where you live ) and it only takes about 5 minutes.
now there is also a chance that the lock might have another issue going on here --- if you remove the knob from the door and with it in your hand, try the key and see if it turns left and right,, if it does turn then the problem is not the cylinder but the thumb turn part of the lock jamming up,, you can also take the parts to the lock shop and get a replacemnet pretty cheap.
one more thing to check is to make sure the lock is not to tight on the door -- and what I mean by this is that on some hollow doors they get squished in to the point where the lock/unlock part of the lock drives into the thumb turn part and it has way to much pressure on it. again - if you remove the lock from the door it should all be pretty clear what is the problem here.

c...

SOURCE: SCHLAGE FE575 HAS BROKEN SPRING ON INSIDE HANDLE

Here's a link to information on your lock:
http://consumer.schlage.com/Service-Support/Pages/InstructionandManuals.aspx#13

Also, I've included a link to the frequently asked questions page, which may have more info such as is it worth repairing your lock.

http://consumer.schlage.com/Service-Support/Pages/FAQ.aspx