Electric Actuator ICON2000/ICON2000AD
ADDENDUM E to INSTRUCTION HANDBOOK MAN 618
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8 MAINTENANCE
In case the unit already installed in HAZARDOUS
AREAS, need maintenance and/or any repair work,
this must be carried out by personnel specifically
qualified and fully trained for works in HAZARDOUS
AREAS.
8.1 Periodic Inspections
Inspect the general conditions of the ICON2000 at regular intervals:
recommended frequency of inspection is one time every two years but this
frequency could be changed depending on the installation and working
conditions: any crack on the surface, broken window or loose bolts must
be reported for repair.
Keep the external surfaces of the unit clean: if the unit is installed in a
dusty environment the specification stated in IEC/EN 60079-14 to be
followed ensuring in particular that the dust layer does not exceed 5 mm.
Check the condition of cable connection and mounting bolts: any loose
connection must be amended.
8.2 Dismantling and Reassembling
In case the screws of the Ex-d covers need to be
replaced, a SS AISI 316 Class A4 Grade 70, must be
used with minimum yield strength of 450 N/mm
2
In case a dismantling and subsequent reassembling of the explosion-proof
enclosure is required, be careful to maintain all parts in their original condition.
So the following procedure must be followed:
Do not damage the explosion-proof mating surfaces on the housing and on
the electrical enclosure cover.
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