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b) Requirements on the cylinder lock:
• The door lock actuator can only be mounted on a traditional cylinder lock. This cylinder lock is
secured with a long screw in the lock of the door.
• The door lock is mounted directly on the cylinder lock. There it turns a key inserted previously
in the cylinder lock.
It is therefore necessary that the cylinder lock projects about 8mm-15mm over the inner fitting
of the door.
Mostly, however, this is not the case, the cylinder lock is flush with the inner fitting. It is not pos
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sible to mount the door lock actuator here. A new cylinder lock which fits has to be mounted.
As noted above, the cylinder lock is only secured by a screw which makes replacement very
straightforward.
Replacing the cylinder lock (exact description in section 9):
• Open the door.
• Insert a key into the cylinder lock on the inside of the door.
• Unscrew the fastening screw (see fig. 1 and 2) completely.
• Move the key a little to the left or the right (clockwise or anticlockwise) until the cylinder
lock can be drawn out of the lock.
• A new cylinder lock is inserted in the opposite order.
The cylinder lock may never project beyond the outer door fitting on the outside
of the door. This provides protection against burglary as the cylinder lock cannot
be turned in this manner, for example, with large gas-pipe pliers.
There are possibly additional protective systems integrated in the outer door
fittings (rotatable rosette etc). The outer door fitting may not be able to be dis
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mounted from the outside!
If this is not observed, you will lose the insurance protection of your household
and personal effects insurance in the case of burglary.
Some cylinder locks may not be replaced by you yourself. This applies, for example, to
large residential complexes which have special cylinder locks. Your key will not fit the
door of your neighbour here but the caretaker can open all flat doors with one single
”general key”.
In case of doubt, cask your landlord whether you are permitted to replace the cylinder
lock or not.
• If you require a new cylinder lock, proceed in measuring the new cylinder lock as described on
the next page.
Summary of Contents for CFA 1000
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