Repairs - Emerson Bettis XTE3000 Installation, Operation And Maintenance Manual

Installation, Operation and Maintenance Manual
MAN-02-04-97-0713-EN Rev. 1
If disassembly and subsequent re-assembly of the explosion-proof enclosure
is required, take the necessary care to maintain all parts in their original condition.
To achieve this, the following steps must be taken:
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A.8.3

Repairs

When needed, repairs may only be carried out using spare parts supplied by the
manufacturer. All accessories must comply with approved specifications and follow the
application and site requirements.
WARNING
Installation, configuration, commissioning, maintenance, and repairs must be performed
by approved and qualified personnel only.
WARNING
The values of gaps of explosion-proof joints are lower than the maximum specified on
Tables of IEC/EN 60079-1 Standard and the values of widths of the explosion-proof joints
are greater than the values specified in the tables of the Standard IEC/EN 60079-1.
Should maintenance require the replacement of any component that forms part of an
explosion-proof joint, only an original spare provided by Emerson can be used.
Direct repair or reconstruction of the above components is not permitted without
Emerson authorization. Not performing this procedure will invalidate the product safety
and contractual guarantee.
Original spare parts must be ordered from the manufacturer; to ensure that correct spares
are provided, the serial number printed on the XTE3000 product label must be specified
when an order for spares is placed.
Appendix
Do not damage the explosion-proof mating surfaces on the housing or on the
electrical enclosure cover.
Reinstall all the screws that came with the dismantled parts and coat them with a
film of molybdenum-based grease. This will prevent the screws from sticking and
make future maintenance operations easier.
If the screws need to be changed, the new screws must be of equal dimensions
and at least equal material quality to the screws originally supplied with the unit.
Replace the weather-proof seals that may have been removed, i.e. O-Rings
for the cover.
In particular, be sure to spread a film of Aeroshell grease over the joint surfaces of
all enclosures.
Appendix
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