Blastrac 1-8DECMKI, Operating Manual

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Operating Instructions 1-8DEC 230V
Description and Function
3.12 Continued
4. The dust-laden air from the air wash is directed through the separator and into the
flexible hose. The air moves through the flexible hose to the dust collector with
sufficient velocity to carry the dust and fine particles.
5. Air enters the dust collector, passes through the filter cartridge and exhausts out of
the machine. Dust emitted from the dust collector port is an indication of a loose or
damaged filter cartridge. Replacement of the faulty filter cartridge or tightening the
wing nut holding the cartridge should be performed immediately.
The ventilation system should be monitored on a regular basis. Bad or improper
ventilation can lead to poor component life and premature wear on a number of
ventilation related items on the equipment. Some of the more important areas to
monitor, relative to the ventilation system, are:
The skirts around the blast housing should be kept in good repair.
The seals around the separator lid should be checked regularly.
The hose connections to the blast unit and the dust collector should be tight
and held in place with metal clamps.
The hose should be kept in good repair. Flattened spots, holes and wear
spots should be corrected immediately. Replace hose if necessary.
Elastomer seals on the dust collector must be maintained in good condition.
Any ventilation irregularities can have an adverse effect on the overall performance and
efficiency of the system. Improper ventilation can cause poor abrasive cleaning which
in turn increases blast wheel and liner wear. An important fact that is often ignored or
misunderstood is:
The steel abrasive causes minimum wear on the internal blast components. The
dust and contaminants are the principal cause of component wear. A well-
maintained ventilation system can minimize abrasive contamination which helps
reduce operating costs and increases the overall efficiency of the shotblasting
system.
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