Instructions

15
Maintenance, cleaning
Type 2012
9 MAINTENANCE, CLEANING
9.1 Safety instructions
DANGER!
Risk of injury from high pressure in the system.
▶ Beforelooseninglinesandvalves,turnothepressureand
ventthelines.
Risk of injury due to electric shock.
▶ Beforereachingintothesystem, switchothepowersupply
andsecureagainstreactivation.
▶ Observetheapplicableaccidentpreventionregulationsand
safetyregulationsforelectricaldevices.
WARNING!
Risk of injury due to improper maintenance work.
▶ Maintenancemaybecarriedoutbyauthorisedtechnicians
only.
▶ Useanopen-endwrench,neverapipewrench,toscrewthe
valvebodyoractuatorinorout,andobservethetightening
torque.
Risk of injury due to unintentional activation of the system
and uncontrolled restart.
▶ Securethesystemagainstunintentionalactivation.
▶ Followingmaintenance,ensureacontrolledrestart.
Risk of injury due to moving parts in the device.
▶ Donotreachintoopenings.
WARNING!
For control functionI – risk of pilot pressure failure.
WithcontrolfunctionI,thecontrolunitandresetarepneumatic.
Nodenedpositionisreachedduringapressurefailure.
▶ Toensureacontrolledrestartofthedevice,rstapplypilot
pressureandthenactivatethemedium.
9.2 Maintenance work
Actuator:
Whenusedinaccordancewiththeseoperatinginstructions,the
actuatoroftheglobevalveismaintenance-free.
Wearingpartsoftheglobevalve:
Partswhicharesubjecttonaturalwearare:
• Valveseat,
• Seals.
→ Ifthereisaleak,replacetherespectivewearingpartwitha
correspondingsparepart.
Visual inspection:
Accordingtotheusageconditions,performregularvisual
inspections:
→ Checkmediumportsfortightness.
→ Checkreliefboreonthepipeforleaks.
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