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22
7
Installation and Maintenance Tips
For any installation and maintenance work, the following should be observed :
Caution :
Regular inspections and maintenance performed by qualified and trained
personnel must be required
When working in potentially explosive areas, observe the standard EN 60079-
14 “Electrical Installations in Hazardous Areas”.
Work on open actuators under voltage must only be performed if it is assured
that for the duration of the work there is no danger of explosion.
Observe additional national regulations.
Check actuators visually. Ensure that no outside damage or changes are visible. The
electric connecting cables must be without damage and wired correctly.
Cable entries, cable glands, plugs etc. have to be checked for correct tightness and
sealing.
Check whether Ex-connections are fastened correctly.
Take care of possible discolouration of the terminals and wires.
Check the flame path gaps of flameproof enclosures for dirt and corrosion. Since the
dimensions of all Ex gaps are strictly defined and inspected, no mechanical work shall be
performed on them.
Ensure that all housing covers are handled carefully and that the seals are checked.
All cable and motor protection elements must be checked.
If defects which affect the safety are detected during maintenance, repair measures have
to be taken immediately.
Any kind of surface coating for the gap surface is not permitted.
When exchanging parts, seals etc only original spare parts shall be used.
Warning ;
Flameproof enclosure! Before opening, ensure the absence of gas and
voltage.
Treat cover with care. Gap surfaces must not be damaged or dirtied in any
way. Do not jam cover during fitting.
Do not disassemble the cover and the window arbitrarily at site.
(confirmation with the factory is highly recommended)
Do not disassemble the base from the actuator body arbitrarily at site.
(confirmation with the factory is highly recommended)
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