Cedardell Ltd. Home central locking - secure radio communications

	Step 10; Use the over-ride key to wind-out the bolt, then gently close the door as shown in the picture so that you can mark the centre of the bolt where it contacts with the frame.
Step 11; Measure from the face of the door which meets the door frame to the centre of the bolt as shown in the diagram.
	Step 12; Measure the distance ‘A’ as just measured back from the face of the frame which meets the door face in-line with the mark where the bolt meets the face of the frame. This point will be where the bolt will enter the frame. Drill a 16mm diameter hole at this point to a depth of 20mm to accommodate the bolt and screw