An­tique Mor­tise Locks


Old House Journal - - Inspire -

Andy Streenz is a pro­fes­sional lock­smith who spe­cial­izes in an­tique locks. In his house, he me­thod­i­cally re­moved and cleaned all ex­ist­ing locks to make them func­tional. Most prob­lems with an­tique mor­tise locks stem from paint buildup, bro­ken springs, and lack of lu­bri­ca­tion. Here are Andy’s step-by-step in­struc­tions to help you re­new and keep your old lock­sets. 1. Un­screw one of the knob set-screws;

re­move knobs and spin­dle from the door. 2. Re­move the wood screws from the mor­tise lock and pull the lock body out of the door

edge. If there is ex­cess paint, pry through the spin­dle or key­hole to aid re­moval. This is a good time to strip any paint from es­cutcheons. 3. Care­fully un­screw the case cover to re­veal the mor­tise lock’s in­ner com­po­nents. Im­por­tant: Snap a photo of the lock to aid re­assem­bly. 4. Re­move all paint from parts, re­assem­ble

them, and ap­ply a light spray lu­bri­cant. If you have any bro­ken or miss­ing springs, you may need to take the as­sem­bly to a lo­cal lock­smith for fab­ri­ca­tion or a sal­vage ware­house to find a re­place­ment. 5. Re­assem­ble the lock in re­verse or­der. Take care to re­place any shims or spin­dle wash­ers that may have fallen out on re­moval of the lock.

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