09302-52-00 DUSTOMAT 21-67 H 21
10.4 Jet cleaning: DUSTOMAT-27, -47, -67
Pneumatically operated filter cleaning, so-called jet
cleaning, is built into the device. During operation,
the four built-in filters are automatically cleaned in
sequence, as long as the vacuum set on the
differential pressure switch has been reached.
Additionally, the filters can be cleaned manually with
the blowers turned off (the main switch must remain
on) by pressing the push button marked “Start
cleaning”. Each filter will be cleaned by at least one
compressed air blast. The manual dedusting
process can be repeated as often as needed.
However, cleaning must be done any time the
acoustic signal sounds.
If the acoustic signal still immediately sounds again after the device has been
cleaned and started, check the amount of material in the dust collection
equipment. If necessary, empty the container (see the “Disposal” section). If the
acoustic signal continues to sound, then the pre-filter and the main filter must be
replaced (backup filter cassette).
10.5 Filter replacement
Filter replacement must be performed in a well-ventilated room or outdoors.
The people assigned to this work must be instructed on the aspirated toxic
materials and wear a breathing protection mask with a class P3 particle
filter, as well as protective gloves. Harm to bystanders must be prevented by
all means.
After an extended operation period, the filter pores can be clogged by extremely
fine dust. Even the dedusting equipment cannot remove this infiltrated dust. The
filter material affected must now be replaced with a new one.
If possible, filter replacement must be done when there is no work going on. Used
filters must be discarded in compliance with local regulations.
Before the filter is replaced, it must first be cleared of loose dust using the
available dedusting system, and the power must be cut off.
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