mcr S-THERM smoke exhaust vents: C, E, NG-A. OPERATION AND MAINTENANCE MANUAL
Page 36 of 41
8.4.3.
Lock adjustment
The lock is adjusted by determining the height at which it is mounted. The screws which fix the
lock and at the same time are responsible for the adjustment are presented on Fig. 65 - marked with
the number "2". Adjustment can be made within a range of approximately 5 mm. After the height
adjustment (if required), tighten the screws and secure the lock against unintentional movement by
means of the self-drilling counter-screw - item 1 on Fig. 65.
Another option to adjust the lock is to adjust the electromagnet jumper mounting. When the
jumper is closed, it should touch the electromagnet with its entire surface. If the situation as shown in
Fig. 69 occurs, when the jumper does not close completely, it should be adjusted so that the
electromagnet and jumper surfaces are parallel to each other when closed.
If the lock is not working properly, the cause may be that it is not properly adjusted. In such case,
carry out the above adjustment steps.
Fig. 68 Solenoid jumper incorrectly adjusted.
