Replacing The Lock Cylinder; Fig. 4: Replacing The Lock Cylinder - HomeMatic HM-Sec-Key Mounting Instruction And Operating Manual

Mounting
A lock cylinder with integrated LED can be obtained as an accessory.
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Note that to attain the household insurance, the cylinder is not to protrude on
the outside to ensure that it cannot be pulled. It must either be flush in (unable
to be dismantled from outside) the door fitting or covered by a rosette.
The lock cylinder must have emergency and hazard functionality (double
cylinder). That means that it must be able to be opened with a second key from
the outside whether a key is inserted from the inside or not.
Some lock cylinders are not to be replaced by the resident. This occurs e.g. in
large apartment complexes that have special lock cylinders. In this case, your
key will not fit in the neighbours lock but the caretaker can open all doors with a
single "master key".
If in doubt, ask your landlord whether you can replace the lock cylinder or not.
5.2

Replacing the lock cylinder

In order to replace the existing lock cylinder, proceed as follows:
• Open the door.
• Insert a key in the lock cylinder on the inside of the door.
Turn the fastening screw completely out (O) - (P).
•
• Move the key slightly to the left or right (clockwise or counter-clockwise) until the lock
cylinder can be pulled out of the lock (Q).
• Inserting the new lock cylinder is done in reverse order.
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M
Fig. 4: Replacing the lock cylinder
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Q
O
P
K
M
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1
3