7. Place small-blade standard screwdriver between outer plastic Brush Housing and wire Slide Clips. Carefully pry out
ward with screwdriver – just enough to push Slide Clips closer to the Brush and slide it out from its locked position.
8. Insert NEW Brushes. Both Brush mechanisms must be replaced as a set.
9. Return Slide Clips to their locked positions to secure Brushes. Replace Brush-retaining Screws and plastic snap-on
Fan Cover.
WARNING! DIRECT APPLICATION OF FULL-RATED VOLTAGE TO UNSEATED BRUSHES WILL
CAUSE ARCING & PITTING OF THE COMMUTATOR REDUCING MOTOR LIFE.
10. To achieve optimum performance from your motor, new brushes should be seated on the commutator BEFORE
applying full-rated voltages. Following Brush-set change apply 50% to 75% of rated voltage for thirty minutes to seat
faces of Brushes on commutator. The motor will run achieve full-potential performance following thirty to forty-five
minutes of operating at the full-rated voltage. Do not block off vacuum air inlet when running the motor.
Alternately, if reduced voltage is not available for this step, two motors of like rating in series for the allotted time will
provide the same results as above.
11. Follow any additional OEM instructions provided with the Brushes to obtain full brush life and peak motor performance.
12. Replace the Motor Cover, making sure the lead-wires are not damaged.
13. Secure both Motor-Cover Latches (ensuring that a “click” is heard) locking them in place.
14. Reconnect the Proximity Switch and Control QD (yellow-jacketed) Cords.
15. Plug Loader Power Cord into receptacle.
16. Press the UP button on the PLC board to reset the SERVICE Alarm. Press the UP button on the PLC board to reset
the SERVICE Alarm (Loader must be connected to power source and Power switch turned ON to reset).
Your Whisper® Loader is ready to be put back into service.
FILTER MAINTENANCE
Filters are crucial to the Whisper® Loader’s performance AND provide protection to the Vacuum Motor/Fan Assembly.
Check filters DAILY. Filters are cleanable, whether Flat-disc type or cylindrical Cartridge type. However, you exercise care
and follow the procedures outlined below. Should filter(s) require more-frequent manual cleaning please review your
specific operating conditions with PCI Customer Service to achieve a reduction-in-maintenance solution.
CAUTION DO NOT use excessively-high air or water pressure. DO NOT use stiff-bristle brushes or similar
devices. DO NOT otherwise scratch specially-treated filter surfaces. DO NOT use oils, solvents, harsh detergents
or other abrasive cleaning agents & solvents. DO NOT apply direct (perpendicular to the pleated surface) air or
water pressure on the dust side of the filter. NEVER point compressed-air nozzles directly at anyone!
DO wear appropriate protective clothing for the contaminant you are cleaning and ensure any residue generated
is properly contained and discarded per local environmental regulations.
Flat Filters
CLEANING: DRY METHOD
Should DI-AC (Nylon) and Poly-Felt Flat Filters require cleaning, even
beyond the capabilities of the Loader’s Vibra-Pulse™ system, remove
and clean as follows:
1. Unlatch Lid, remove filter from Whisper® Loader.
2. While holding filter at the perimeter Ring lightly tap (smooth
side) against a firm surface to dislodge majority of larger particles.
3. Thoroughly vacuum; first from smooth side then seam side, so as
not to embed particles further into media.
4. Repeat from smooth side to seam side until all visible debris
has been removed.
© Copyright 2007 IMS Company. All rights reserved. An ISO 9001:2000 Registered Quality Company
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