ABB SCK - Maintenance Plan Overview

150 Operating instruction SCK Gas Sampling System OI/SCK-EN Rev. E
Maintenance plan
This section gives an overview of maintenance work to be performed at regu-
lar intervals. The tasks described here require special training and under some
circumstances involve working on control cabinet open and powered on. They
must therefore only be carried out by qualified and specially trained persons.
If it can be assumed that safe operation is no longer possible, the gas sam-
pling system must be taken out of operation and secured against being start-
ed up again unintentionally.
It can be assumed that safe operation is no longer possible:
 if the gas sampling system is visibly damaged,
 if a check reveals problems,
 if the gas sampling system no longer works,
 after prolonged storage in adverse conditions,
 after severe transport stress.
It is recommended to have the gas sampling system maintained by the ABB
representative responsible for you.
When performing maintenance work on the gas sampling system, the service
switch must be in the ON position with a few exceptions (for example, when
checking the EMERGENCY STOP switch). Actuating the service switch auto-
matically retracts the gas sampling probe out of the kiln, and the controller
displays the Maintenance message. See Chapter Operating the service switch
on page 161 for more details.
You can secure the service switch with a padlock to prevent unintentionally
restarting the gas sampling system.
Introduction
Service switch
Unintentional restart