7. Maintenance Instructions
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7. Maintenance Instructions
General Safety Precautions
The user must ensure that maintenance, installations, commissioning and testing of the
equipment is only carried out by authorised and competent persons.
The following rules must be adhered to:
•
All prevailing site safety regulations shall be adhered to at all times.
•
Check for hazardous gases before and during any maintenance activity.
•
Fully isolate the equipment from the electrical supply before and whilst any work is
being performed.
•
Before starting maintenance work, isolate the equipment completely where possible.
•
Before removing the terminal enclosure, allow sufficient time for the internal
components to cool down after electrical isolation.
•
Do not work on the equipment when it is energised.
•
Be aware of hazards which may arise when working on energised equipment, and
take all necessary precautions.
•
Familiarise all persons working on the equipment with the instructions and
information provided within this manual.
The following preventative maintenance should be carried out at the intervals shown below,
for any replacement parts, please contact EXHEAT Industrial Ltd.
Compliance with these maintenance instructions is a mandatory requirement. Documented
evidence must be maintained in the form of a signed checklist. Copies of completed
checklists and records will be required in the event of a warranty claim.
If the heaters are not used for more than three months they must be tested for
insulation resistance before being energised.
Motor
•
Maintenance shall be performed only by qualified people in accordance with the
IEC/EN 60079-17 or national standards (latest edition).
•
Qualified people must have knowledge about electrical apparatus for explosive
atmospheres and electrical installations in hazardous areas.
•
Every 3000 hours of service verify and restore, if necessary, the grease on the radial
seals (for example the V-rings)
•
Periodically (depending on environment and duty) verify:
•
Motor cleanliness and free passage of cool air;
•
Free motor running with low vibration and absence of anomalous noises,
where there is high vibration and/or noise, verify the motor fastenings,
balance and that the bearings are in good condition.
