AS-10.22.027
8 (54)
(-) 2006-11-10
KONE MonoSpace®
Maintenance Instruction
© 2006 KONE Corporation
All rights reserved.
Disclosure prohibited
4
TROUBLESHOOTING PROCESS
4.1
Introduction to troubleshooting
Generally, in a troubleshooting process it is recommended that fast and easy checks are done first.
More specifically, the troubleshooting should always begin in the machine room or at the Maintenance
Access Panel. This thumb-rule is valid even though landing doors and car doors usually have the
highest failure rates in an elevator. After fast and easy checks, the troubleshooting should continue
testing parts, which are cheap to try (for example fuses).
The topic of this instruction is somewhat more complicated and we suppose that before the
troubleshooter has to resort to this document, she or he or perhaps another technician has already
made the first checks without success. The troubleshooting rules that apply generally can not always
be followed in advanced troubleshooting: some checks are quite complicated to do and expensive
replacement parts or even modules might be needed in order to locate the fault. In any case, the
reader should always keep the basic troubleshooting rules in mind. For example, the first option should
not be replacement of boards or other sensitive components which may be damaged in the process -
the fault may still be located somewhere else, for example in the cable connection.
4.2
Safety measures
The following safety measures must be carried out before beginning the actual work:
Step
Action
Illustration/Note
1
Ensure that no one is in the elevator car.
2
Ensure that no one is doing any
maintenance work on the same elevator.
3
Ensure that the troubleshooting can be
done safely and there is no immediate
danger of further damages for the elevator
(for example counterweight or car off the
guide rails).
4
Always follow KONE safety instructions
described in AM-01.03.002 and local safety
regulations for electrical work.
5
Before checking any unprotected
equipment, making any connections for
measurements or removing them, ensure
that doing it is safe.
If necessary, ensure that the power is
switched off and the equipment is de-
energized.
