Section: 6 Maintenance
This section explains:
• When and how to do maintenance.
— Normal maintenance.
— Extraordinary maintenance.
• What to do when replacing springs.
• What the availability is of spare parts, action conversion kits and temperature
conversion kits.
WARNING
Actuator must be isolated pneumatically and electrically before any (dis)assembly starts.
Before mounting or (dis)assembling the actuator, consult the relevant sections of this manual.
6.1 Normal Maintenance
EL-O-Matic F actuators are designed to operate without maintenance for their normal
working life. Normal working life is 500,000 cycles* for sizes up to F1600 and 250,000 for
sizes F2500 and F4000.
For actuators with the optional low temperature silicon seals, we advise to replace these
seals after 250.000 cycles*.
NOTE:
*Cycles = one open stroke and one close stroke.
We recommend regular inspections to make certain that the actuator / valve assembly
operates smoothly and to check that there are no visible or audible defects. We advise to
perform the following checks upon each proof test interval complying with the rules and
regulations of the country of nal installation:
• Visually check the entire actuator as well as the control system (where foreseen).
• Ensure there are no leaks on the actuator parts under pressure.
• Check pneumatic connections for leaks. Tighten tube ttings as required.
• Check if manual override (where foreseen) is regular.
• Check if pneumatic lter cartridge (where foreseen) is sound and lter bowl
(where foreseen) has been cleaned properly.
• Check the setting of the relief valves (where foreseen).
• Verify that the power uid supply pressure value is within the required range.
• Remove built-up dust and dirt from all actuator surfaces.
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