IM-P713-01 CTLS Issue 1
54
AEL7 Series Electric actuator
7.1 Maintenance Safety Information
Caution
Before commencement of any commissioning work please read to Section 1 "Safety
Information". and Section 4.1 "Electrical Connection Safety Considerations".
Always read the Safety Information Sections of the relevant Installation and Maintenance
Instructions for the control valve and any accessories as well as the actuator before
commencing any work.
Warning
Always ensure that the control valve is isolated and all necessary risk assessments and
method statements have been validated and authorized prior to commencing maintenance
operations.
Mains connection and maintenance of the AEL7 Series actuator or control valve requires
specialist knowledge of electrical circuits and systems, and the inherent dangers. A working
knowledge of linear actuators and control valves is also required.
Risk of injury by moving parts. Ensure that that the control system is disabled and the
electrical power supply is isolated to ensure that the valve and actuator do not move without
warning.
The incorrect use of power supplies to assist the installation, commissioning and
maintenance of electrically actuated valve assemblies increases the risk of personal injury.
Lifting and fitting or actuators increases the risk of personal injury
Warning - crush hazard
When actuators are to be fitted using lifting equipment ALWAYS ensure that the actuator is
carefully slung in order that it cannot fall. NEVER attempt to remove a control valve from
the line by using the actuator as the lifting point. The actuator or the lifting equipment could
become damaged.
Never stand under components that are being lifted. Head safety protection must always
be worn when operating on or close to equipment where lifting operations are taking place.
Do not place hands within the actuator yoke or on the stem when isolation of the electrical
power supply has been removed.
Do not attempt to restrict actuator stroke or movement, or increase seat load through the
placing of objects within the actuator yoke. This practice could also result in the loss of
sight
Warning - musculaor skeltal damage
For small actuators that do not require mechanical lifting aids, always ensure that manual
lifting best practice is observed. Always use two personnel where possible and ensure that
proper access is available in order to ensure a secure foothold.
7. Maintenance
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