How to fit a lock

1 . Safety Notice

N.B Some lower grade locks will not have template for fitting. Please remember that all lock sizes are different and this template should not be used on different locks. Whenever you do work like this you should always wear safety Glasses to a BS standard. We recommended you read these instructions before doing anything and at the end if you feel that this job will be too challenging, find an experienced Carpenter. This option will work out cheaper in the long run.

1a. Lock Fitting

Mark Height lightly on the frame, door face and edge above the desired keyhole position, also marking a centre line down the door edge. Carefully cut the template provided with your fitting instructions.

1b. Place the mortice lock template on the door edge with the arrows aligned with the centre line and the top of the template with the height line. The template can be taped temporarily in position to prevent movement. Mark the centres of the holes to be drilled for the lock body with a bradawl.

2a. Before drilling holes mark the required depth on the drill bit with adhesive tape. Drill holes for mortice lock 3mm deeper than the lock to be fitted. Please take great care to keep the drill level and straight, we recommend the use of a brace and bit for drilling holes for lock and locking box mortice.

2b. Carefully remove the remaining wood from the mortice using a chisel sot that the lock body fits snugly without excessive force.

N.B. On no account should the lock be hammered into place. When testing the fit it is a good idea to do so with the bolt in locked position. By holding the bolt the lock can be more easily be removed from the mortice.

3a. Insert the lock into the prepared mortice then ensuring it is parallel with the door edge mark around the forend.

3b. Remove the lock and carefully chisel out a recess to enable the faceplate to lie flush with the door edge.

N.B. It may be necessary to countersink the faceplate and fixing screw holes.

4a. Using the template provided, fold along the vertical dotted line and place around the door edge with the top level with the height line. Mark the hole centres with a bradawl.

4b. Drill the holes for keyhole as shown on the template. Drill through the door until the point of the drill breaks through on the opposite side. Working from the opposite side complete drilling and open out to form keyhole shape. Using a small round file form keyhole to allow easy entry of key.

Please ensure the drill is level and straight and take care with the drill breaks through the wood on the opposite side to reduce splintering.

5a. Remove faceplate. Fit the lock into the prepared mortice and mark fixing holes with a bradawl. Secure with screws provided, Replace faceplate.

5b. Place the keyplate over the Keyhole then insert the key, ensure the key is central in the Keyplate then mark the screw holes with a bradawl. Remove the key and fix to the door with screws provided.

Test the lock from both sides with the key to ensure smooth operation of the bolt before proceeding.

6a. Locking Box Fitting

Measure the thickness of the door edge and mark a vertical line on the door frame equal to half this dimension. This measurement should be taken from the door stop.

6b. Place the locking box template level with the height line marked previously. Mark the centres of the holes to be drilled for the locking box with a bradawl.

7a. Drill holes, taking care to keep the drill level and straight. Chisel out the wood for the locking box and box flanges (if applicable) to give a snug fit.

7b. Place locking box in position making sure it is parallel with door frame and mark around its edge. Clearance between faceplate and locking box should be adequate to ensure smooth operation. Recess into frame if required. Fit locking box and mark the position of the fixing screw holes with a bradawl and secure in place using screws provided. It may be necessary to countersink screw holes for correct seating of locking box. Close the door and test the operation.

When the deadbolt is locked it is quite normal for minimal play to be apparent between the locking box and bolt. This is not a defect but is necessary to prevent the deadbolt form binding, causing premature wear.

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