7.2
After Start-up:
Check correct installation ensuring there are no vibrations and/or unusual
noises.
Check the fan from the air intake side and make sure that the fan rotates anti-
clockwise. If the rotation direction is clockwise, invert any two cables on the
power line (only for three-phase motors).
8
MAINTENANCE STANDARDS
The S&P HIT / HIB air extractors have been designed and manufactured for
long useful life even under the most severe conditions. However, note that the
equipment has moving parts and, as such, requires periodical inspections.
Therefore, it is recommended to implement a preventative maintenance
programme, which should be carried out by competent and specialised
personnel.
Daily inspections should be performed to prevent breakdowns caused by
harmful work environment related effects, such as temperature, humidity, dust,
dirt, vibrations and other factors.
8.1
SAFETY WARNINGS DURING MAINTENANCE
Maintenance of the extractor should be carried out only by personnel trained in
the safety standards and recommendations set forth in this Manual. Before
performing maintenance, disconnect from the electrical supply by switching off
the master switch.
When performing any operation on the machine, all personnel must be notified.
When accessing the machine for maintenance, place a warning sign over the
power supply switch to prevent another operator from accidentally switching the
machine on.
During the machine maintenance and inspection phases, there are risks of the
fan catching and cutting clothing, extremities, of hair being caught and also risks
to other parts of the body.
During these phases, Use the PPE indicated in section 2.1, especially the
safety clothing and the gloves; tie back long hair and do not wear rings,
bracelets or necklaces.
8.2
PERIODIC MAINTENANCE
Make sure the air intake and outlet openings are clean and free of objects.
Make sure the extractor is always dry. If the extractor is wet, dry it immediately,
identify the cause and rectify it to avoid corrosion.
Check the electrical cables and connections.
Check for nuts and bolts which might be loose or that may have become rusted
on account of environmental conditions. Adjust or replace them.
22