DVC 5630-006 Посібник з монтажу, експлуатації та технічного обслуговування - Сторінка 13
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Друкувати сторінку5.2.2 5630-006 PCU type
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DANGER:
HAZARDOUS VOLTAGE. No electrical power should be connected until all wiring and limit switch adjustments have been completed.
Once the power is supplied to the unit, caution when the cover is not installed.
6. MAINTENANCE
6.1 Maintenance
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CAUTION:
- Turn off all power before attempting to perform maintenance on the actuator.
- POTENTIALLY HIGH PRESSURE ITEM. Before removing or disassembling your actuator, ensure that the valve or other actuated device
is isolated and not under pressure.
Under the normal conditions, maintenance should be carried out at six month intervals. But when the conditions are more harsh, more frequent
inspections may be advisable.
Ensure that the actuator is properly aligned with the valve or other actuated device.
Ensure that all wirings are insulated, connected properly.
Ensure that all screws are present and tightened.
Ensure cleanness of internal electrical devices.
Ensure that conduit connections are properly installed and are dry.
Check the internal devices for any condensation.
Check the power to the internal heater.
Check the enclosure of O-ring seals and verify that the O-rings are not pinched between flange.
Verify the declutch mechanism.
Visually inspect the open/close cycle.
Inspect the identification labels for wear and replace it if necessary.
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WARNING: Treat cover with care. Gap surfaces must not be damaged or dirtied in any way. Do not jam the cover during fitting.
Know-how makes the difference
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