ITT Advantage Actuator 2.0, Руководство по обслуживанию

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Maintenance
Precautions
WARNING:
• All procedures must be performed by qualified personnel.
• When the process fluid is hazardous, thermal (hot or cold), or corrosive, take extra precautions.
Employ the appropriate safety devices and be prepared to control a process media leak.
• Always wear protective clothing and equipment to safeguard the eyes, face, hands, skin, and lungs
from the particular fluid in the line.
CAUTION:
• Disconnect electrical, pneumatic, and hydraulic power before servicing actuator or automation
components.
Inspection
Inspection area What to look for Action if problem is found
External valve parts Excessive wear or corrosion
• Replace the affected parts
• Contact ITT to obtain
replacement parts or for
specific instructions
Non sealed bonnet Fluid weeping from the plug Replace the valve diaphragm
Sealed bonnet Fluid weeping from the plug
Loosen the v-notch vent plug 2-3
turns to check
Replace the valve diaphragm
Actuator's bonnet weep hole and
air ports
Air pressure
Topworks Spindle binding, excessive noise,
or dried lubricant
Lubricate the actuator
Diaphragm and valve body Leakage between the diaphragm
and valve body
Tighten the bonnet fasteners
For more information, see:
• Replace the valve diaphragm in this manual.
• Replace the spindle o-rings in this manual.
• Lubrication requirements in this manual.
• Tighten the bonnet fasteners in this manual.
Tighten the bonnet fasteners
CAUTION:
Do not tighten fasteners while the system is pressurized or at elevated temperatures (greater than 100°F
(38°C)).
1. Depressurize the system.
2. Use regulated air pressure to position diaphragm so that valve is slightly open.
You may need to use air pressure to actuate the valve.
Maintenance
Advantage
®
Actuator 2.0 Maintenance Manual 7