How To Fix A Mortise Door Lock

Don t be afraid to use a liberal amount of oil a sticky lock needs the attention.

How to fix a mortise door lock.

Notice the set screw on the base of the knob on the right. Lightly sand the patched areas. The fix a short term fix is to move the strike plate to align better with the stuck door latch. Place strips of tape around the exterior and interior patched holes to protect the finish on the door.

This mortise lock set is installed in a 1930 colonial in the boston area. The easiest fixes are. Then on the faceplate loosen the setscrew opposite the lock cylinder and unscrew the lock cylinder. If you have questions please ask.

From there you can either widen the hole both of the wood and metal or you can unscrew the strike and re secure it in the proper position. Loosen the setscrew securing either one of the doorknobs to the square knob shaft. The knob and or the spindle may. Meet the mortise lock and door knobs.

If the thumbturn for the deadbolt is causing the bolt to jam and lock you out when it s in the wrong position you may. Cut through the base of the cuts to empty the mortise of excess wood. Examine the mortise lock. How to fix antique mortise door mechanisms 1.

Try loosening the flathead screw on the base of your doorknob. Today we are discussing how to remove an entry mortise lock with a thumb latch on the exterior instead of a regular knob. By shutting your door you can mark the point on the door frame that latch is coming in contact with. You can tighten a simple interior mortise lockset like the one shown at left as follows.

Hold down the spray button until the wd 40 begins to overflow from the lock opening. This screw should hold the knob securely to the spindle when you turn the knob. 3 if this does not help remove the knob. Make a series of closely spaced cuts into the mortise area.

Pull the knob off the shaft. Do the same for the recessed patch on the edge of the door. Most mortise locks are mounted with screws driven through the face plate into the door edge. Soften the paint.

Starting at the top of the faceplate outline make a series of closely spaced chisel cuts about 1 8 inch deep inside the marks. Press down on the button on the rear of the wd 40 canister to begin releasing the lubricant into the lock. 1 loosen the setscrew on the knob s shank. Spray the wd 40 into the lock.