-EN Rev. E Operating instruction SCK Gas Sampling System 207
Probe retractor: Checking the bellows
every two years
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 un-
authorized switching (with a padlock).
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 touch the gas sampling system during and after operation.
Do not touch the gas sampling system until it has cooled down to 50 °C.
Do not approach the retracted probe until it has cooled down.
When the warning lamps light up or the earning buzzer buzzes, leave the
danger area around the probe retractor immediately as the probe is
about to move at any moment.
Press the EMERGENCY STOP switch immediately if anyone is still in the
danger area around the retractor after the warning lamps light up or the
warning buzzer buzzes.
Explanation of safety measures:
Safety regulations for maintenance work on
page 158.
The following conditions must be met:
The service switch is in the
ON
position; the gas sampling probe is retract-
ed from the kiln (see
Operating the service switch
on page 161).
The EMERGENCY STOP switch is pressed.
Proceed as follows to check the bellows:
Unscrew the hose clamps on the cover.
Remove cover.
Check condition of retractor bellows:
general damage
cracks
abrasion
If the condition necessitates replacement, consult the service
manual.
Put cover back on.
Fit and tighten hose clamps.
Unlock EMERGENCY STOP switch, turn service switch back to
OFF
position and insert gas sampling probe again using the
controller.
WARNING! Gas sampling probe moves into the kiln. Do not
stand in the area of travel of the gas sampling probe or probe
carriage until the probe is completely inserted into the kiln
and the warning lamps go out.
Maintenance interval
measures
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