2TLC172245M0201, rev. B
12
www.abb.com/jokabsafety
2013-04-22
Maintenance
Every week:
Check correct operation of all circuits. If the actuator shows signs of bending or the switch head
housing displays mechanical damage then remove and replace.
Every 6 months:
Isolate power and remove cover. Check screw terminal tightness and check for signs of moisture
ingress.
Warning!
The safety functions and the mechanics shall be tested regularly, at least once every year to confirm that
all the safety functions are working properly.
Warning!
In case of breakdown or damage to the product, contact the nearest ABB Jokab Safety Service Office or
reseller. Do not try to repair the product yourself since it may accidentally cause permanent damage to the product,
impairing the safety of the device which in turn could lead to serious injury to personnel.
Caution!
ABB Jokab Safety will not accept responsibility for failure of the switch functions if the installation and
maintenance requirements shown in this sheet are not implemented. These requirements form part of the product
warranty.
Caution!
The switch solenoid is rated for continuous duty, and temperature rise will occur if left permanently
energised. The temperature will not affect performance of the switch function, life time or damage the housing. As
a precaution it is always advised to limit the energised time of the solenoid(not on MKey8M) and where possible
and avoid mounting on sensitive surfaces (metal preferred).
