PLDC04348
REVISION 00
November 09, 2020
TECHNICAL OFFICE
November 30, 2020
34
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B2 FILTER SHAKER MOTOR
The function of the filter shaker is to free the air filter of dust via forcible vibratory motion, so
as to prolong its effectiveness and extend the intervals between replacements, for a paper
element, or between washes in the case of polyester fabric (optional). The shaker operates in
alternation with the fan. In effect, for the shaker to give best results, the suction motor must
shut off temporarily so that the dust vacuumed and retained during operation can be freed from
the folds of the filter material. The filter shaker comprises an electric motor and two eccentric
weights mounted outside of the motor frame on opposite sides of the rotor shaft, which when
set in rotation produce an accentuated vibratory motion transmitted to the entire filter.
The filter shaker can be operated in "manual" mode using the dedicated button on the control
panel, and/or in "automatic" mode if programmed using the relative facility provided by the display
pcb. The display offers the user the option of activating the shaker function "automatically" and
if selected, indicating how many seconds must elapse between one shake and the next; at each
activation, naturally, the suction motor will be paused.
The filter shaker motor is controlled and driven at 12Vdc by the power circuit board and has a
nominal current draw of 1.6A; the rated power of the motor is 10.5W. Maximum rated speed at
the rotor shaft is 5000 rpm.
Following a routine check on the current draw, the carbon brushes are easily accessible for the
purposes of visual inspection, although it is unlikely they will ever need replacing because of
wear. In the event of malfunction, in any event, the filter shaker motor must be replaced as a
complete unit.
Since the motor has minimal protection against ingress of solids and liquids, care must be
taken during inspection and/or disassembly.
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Summary of Contents for NOBLES S6
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