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Mortise Locks Created by M.Martin 9/05 Slide 2 Types - your Ref: P45 of textbook Slide 3 Review parts of a mortise lock on P 46 of textbook Slide 4 Installing the lock Slide 5 Hold the lock at the required height Mark edges of lock as a guide on face of door Also mark height of spindle position and keyhole if a lock set Slide 6 Use a square and bring these lines to door edge Continue lines around door edge to show the position for mortise Slide 7 Find centre of door edge Mark a central guide line down the door edge Width of lock can bee marked on edge from here Slide 8 You can use a combination square to gauge depth for spindle hole If mortise lock has a cover plate, allowance must be made for this Slide 9 Transfer measurement to door face Mark both sides of door At this stage you can also use same process to mark keyhole on face, if applicable Slide 10 Wedge bottom of door tight Use an auger or speed bore to drill bulk of mortise Ensure you keep the drill level Slide 11 Either now or on completion of mortise, drill spindle and key holes Drill from both sides so that you dont split the timber on the door Slide 12 Complete mortise with a chisel Use appropriate sized mortise chisel for this A paring or firmer chisel to clean final edges Slide 13 Push lock into hole Check if square Check spindle and key holes are aligned Trace face plate with sharp pencil Slide 14 Remove lock Carefully chisel correct size of plate Remember if cover plates are being used, this will be deeper Slide 15 Reposition lock Face plate should be flush with door Or place cover plate plate over, this being flush Screw into position, pilot drill holes first Slide 16 Finish lock screwed into position Slide 17 Fitting The Lever Handles Slide 18 Initially position spindle through door Check positioning is free from obstruction Slide 19 Fit one handle on, hold in the correct position Use a bradawl to position screw holes Slide 20 Remove handle Pilot hole first Slide 21 Position handle & screw in place Fit screws to ensure handles stay level Top corner, then diagonally opposite bottom corner etc Repeat process for other side Slide 22 Fitting Striking Plate Slide 23 Close door onto jamb Use pencil to mark top & bottom of latch & lock on jamb Accuracy is very important Slide 24 Open door continue marks around onto the face of the jamb Slide 25 With door open, measure depth of latch & lock A combination square is good for this Slide 26 Transfer depth measurement onto face of jamb With vertical lines between previous marks Slide 27 Hold strike plate in position Mark around plate to give exact position Slide 28 Chisel out inside the latch and lock guidelines and the external guideline for the strike plate. Position the strike plate, drill pilot holes and then screw it in place Slide 29