102
ProKiln GAC400
PROBE GAS SAMPLING SYSTEM | OI/GAC400-EN REV. A
… 11 Maintenance
… Maintenance work
Checking the condition of the system, cleaning the system
Safety measures
WARNING
Dangers when checking the condition of the system or
cleaning the system.
Always take the following safety measures when performing
this work:
• Wear the general protective equipment.
• Turn the Service Mode switch to Service Mode and secure
the service switch against unauthorized 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 shutter is closed.
• Do not touch the probe gas sampling system until it has
cooled down to 50 °C.
• Do not approach the retracted probe until it has cooled
down.
• Always keep the floor around the probe gas sampling
system clean and dry.
WARNING
Dangers when performing any cleaning work.
Always take the following safety measures when performing
this work:
• Wear a dust mask when cleaning.
• Wash any dust off the skin immediately with water and
soap.
• Ensure adequate ventilation of the workplace.
WARNING
Dangers when checking and cleaning the probe retractor.
Always take the following safety measures when performing
this work:
• If work is unavoidable in the area of the duct opening, lock
the shutter before commencing work and wear respiratory
protection.
WARNING
Dangers when checking the duct opening.
Preferably check and clean the duct opening when the rotary
kiln is out of operation. If you clean the duct opening when the
rotary kiln is in operation:
• Wear a face mask against heat, heat-proof gloves and
protective welder's clothing and respiratory protection
against toxic gases.
• Keep the time in which the feedthrough opening is open
as short as possible.
WARNING
Dangers when checking and cleaning the cooling module
Always take the following safety measures when performing
this work:
• Do not perform work on the cooling water circuit until the
probe gas sampling system has cooled down.
• Avoid contact with the cooling water and the anti-freeze.
• In case of accidental contact of cooling water or anti-
freeze with skin, wash off the skin immediately with water
and soap. Contact medical specialist according to local
regulations.
• If cooling water or anti-freeze gets in the eyes despite
protective glasses, rinse them thoroughly under running
water, holding the eyelids open. Contact medical specialist
according to local regulations.
• Observe instructions in the anti-freeze manufacturer's
safety data sheet.
Note
For an explanation of the safety measures see
Safety
instructions for maintenance work
on page 98.
Introduction
Check the condition of the probe gas sampling system at regular
intervals; in the event of safety-relevant defects, inform the
responsible maintenance personnel. If you observe any unusual
noises, follow the recommendations in
Irregularities and
corrective action
on page 73.
If necessary, submit the probe gas sampling system to thorough
cleaning. Special attention should be given to the following:
• dust under covers and in connection boxes
• excessive dirt on the surface of the modules
• excessive soiling of the rollers and rails in the probe retractor
• heat exchanger cooling fins
Maintenance interval
Daily
