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Maintenance, cleaning
WARNING!
For control functionI – risk of pilot pressure failure.
WithcontrolfunctionI,thecontrolunitandresetarepneumatic.
Nodenedpositionisreachedduringapressurefailure.
▶ Toensureacontrolledrestartofthe device,rst apply pilot
pressureandthenactivatethemedium.
Risk of injury due to moving parts in the device.
▶ Donotreachintoopenings.
10.2 Maintenance work
Actuator:
Whenused inaccordancewiththeseoperatinginstructions,the
actuatoroftheglobecontrolvalveismaintenance-free.
Wearing parts of the globe control valve:
Partswhicharesubjecttonaturalwearare:
• Valve seat
• Control cone
• Seals
→ Ifthereisaleak,replacetherespectivewearingpartwitha
corresponding spare part.
(Forsparepartsetsandassemblytoolsseechapter
“12Spareparts”).
Replacementofthewearingpartsisdescribedinchapter
“10.3Replacingwearingparts”.
Visual inspection:
Accordingtotheusageconditions,performregularvisual
inspections:
→ Checkmediumportsfortightness.
→ Checkreliefboreonthepipeforleaks.
Reliefbore
Fig.17: Reliefbore
10.2.1 Cleaning
Commerciallyavailablecleaningagentscanbeusedtocleanthe
outside.
NOTE!
Avoid causing damage with cleaning agents.
▶ Beforecleaning,checkthattheagentsarecompatiblewith
bodymaterialsandseals.
Type2301
English