If it s too small you can t exert adequate tightening force.
How to fix a loose door lock cylinder.
Remove the lock faceplate to fix the loose door lock cylinder you need access to the set screws holding the cylinder.
Fixing or repairing a door lock may seem like a daunting task but it can be very simple to fix.
Tighten until firmly in place making sure not to over tighten.
You can tighten a simple interior mortise lockset like the one shown at left as follows.
2 hold the knob on the other side of the door and turn the loose knob clockwise until it fits snugly.
How to fix a loose door lock cylinder 1.
If it s too large you can t drive the screw in all the way.
Watch as a professional home repairman shows how to fix door.
1 loosen the setscrew on the knob s shank.
Detach the knob from the door by inserting a key into the lock cylinder and turning it left without retracting the bolt.
Once the key pieces have been extracted the door lock should be examined.
Watch this video and l w.
Don t call the locksmith just yet.
Door knobs may become loose over time.
If your doorknobs feel a little loose and jiggly you may need to tighten either the lock set for most modern doorknobs or the knob itself on older mortise style passage locks pictured below.
If your lock barrel is a little loose trace back the screw that is level with the lock on the inside of the door.
Then depending on the type of doorknob insert a schlage spanner through the hole on the side of the knob shaft or use a small screwdriver to trigger the catch on the side of the knob shaft.
Disassemble the lock to view the placement of the screws you need to disassemble the lock to see how the set screws.
Then tighten the screw until you feel it resting against the flat side of the spindle.
Methods of tightening them depend upon the type of lockset.
Test it with a spare key and make sure that.