ABB SCK - Probe Retractor: Checking and Tightening the Drive Chain

196 System Manual SCK Gas Sampling System 42/23-81 EN Rev. 4
Probe retractor: Checking and tightening the drive chain
Maintain adequate drive chain tension so as to prevent damage to the retractor.
 weekly or as required
Always take the following safety measures when performing this work:
 Wear the general protective equipment.
 Turn the service switch to ON and secure the service switch against unauthor-
ized switching (with a padlock).
 Additionally press the EMERGENCY STOP switch.
 Do not enter the danger area around the retractor until it is at standstill and the
warning lamps and buzzer are off and the flap valve is closed.
 Do not perform the work until the gas sampling system has cooled down.
Explanation of safety measures: Safety regulations for maintenance work on page
156.
The following conditions must be met:
 The service switch is in the ON position; the gas sampling probe is retracted
from the kiln (see Operating the service switch on page 159).
 The EMERGENCY STOP switch is pressed.
Meaning
Maintenance interval
Safety
measures
Requirements