Installation, Operation and Maintenance manual
23
PowerCore
®
Dust Collectors - Series CPC
Routine inspection
To maintain the optimum performance of any dust collector, a routine inspection should
be made to minimise down-time in the event of equipment malfunction, particularly
on continuous performance applications and to ensure the equipment is maintained
to its original supply condition.
Any abnormal change in pressure differential across the filter packs indicates a change
in operating conditions and a fault to be rectified. For example, a prolonged stoppage
of compressed air will cause an excessive build-up of dust on the filter packs, resulting
in a greatly increased pressure drop.
After the fault has been rectified, resumption of compressed air cleaning will usually
return the filter packs to normal efficiency. However, it is advis able to operate the
controller in still-air conditions for a short period to dislodge any accumulated dust
before putting the collector into operation.
Filter pack resistance can be checked by connecting a U-tube manometer or
differential-type pressure gauge to tapping points on the collector body (see
figure 10). This will give a continuous indication of the state of the filter packs. Once
running, the operating resistance will be relatively stable, the actual value depending
on the air volume and the characteristics of the dust being handled.
Ignition minimising fans are fitted with a lining inside the casing. As this may
only offer protection for a limited period, any upset condition leading to rubbing,
the fan must be switched off immediately and the condition corrected.
It is recommended to periodically inspect the general casing integrity and
support structure.
Do not operate above recommended compressed air pressure. Excessive
pressure will reduce the working life of components.
Servicing schedule
A record of all pressure checks should be kept in a log book to aid the speedy diagnosis
of faulty operation.
1
2
Manometer connections
1
clean side
2
dirty side
Figure 9: Clean side and dirty side tapping points
