B06 20 243 E-EN
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09.2010
Installation and Maintenance Manual
CB8-E
4.12 Limit switches
Optional the CB8 can be equipped with several kind of sensors.
“Pad wear”
An optional inductive limit switch (see figure 1 and figure 2) allows to detect lining wear. With
increasing lining wear the rotating angle of the two brake levers increases, too, when the brake is
closed. When the maximum allowed pad wear is reached, the brake lever will activate the limit switch
and a signal is send out. The sensor is chosen as “normally closed”, so that in case of a damage like
e. g. broken cable a signal is send out, too.
“Brake open”
An optional inductive limit switch (see figure 2) allows to control, if the brake is open. The sensor is
activated directly by the release lever. The sensor type “normally open” ensures, that in case of an
electronic or s
ensor defect there is no signal for “brake open”.
4.13 Removing the brake
1. Disconnect the thrustor from the power supply. Open the brake by using the manual release.
WARNING
The manual release is spring biassed to realize an auto-kickback functionality. The activated
manual release will jump back in its initial position automatically by spring force, when the
brake is released by solenoid the next time.
2. Unscrew the mounting bolts (3 x M16). The brake is now ready to be removed from the mounting
place.
WARNING
The weight of the brake is approx 42 kg including solenoid. Ensure use of suitable lifting gear.
3. Deactivate the manual release by hand.
WARNING
The manual release is spring biassed to realize an auto-kickback functionality.
