Conventional fastening system for Scandinavian Oval MO - SmartHandle 3062

If an additional mechanical cylinder is to be installed to double-lock the door, you must ensure that the cable from the outer fitting cannot be pulled through the lock. There are two options to choose from:

• Pull cable through the door via the lock. In doing so, you must ensure that the cable does not get damaged in any way. You will need to remove the mortise lock from the door or at least loosen the fastening screws.
• Enlarge the upper hole, so that the cable can be easily pulled through the door via the lock. The hole diameter should be no larger than 45 mm; otherwise, there is a risk that the fitting will no longer cover the hole. In principle, it is also possible to enlarge the hole upwards only to form an elongated hole.