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These instructions and procedures should be followed
whenever a new brush or wheel is installed or when it requires dressing
or cleaning after usage. The following refers to bristle brushes;
however the same procedure can usually be applied to non-woven brushes
and wheels.
After truing at our factory, most brushes can be placed directly
into production use. However, due to varied types of equipment and
conditions, adjustments or dressing may be required.
Installation / Operating Procedure
1. All brushes are marked with an arrow indicating proper direction
for brush rotation.
2. Install brush per your machine manufacturer's recommendations.
3. Follow all safety rules.
4. Do not remove protective wrapper until brush is installed in
machine to prevent contamination.
5. Check nozzles often to assure full water cooling of the brush.
You must maintain full water flow according to manufacturer's recommendations.
This will eliminate or reduce the possibility of nylon particles
contaminating holes, and excessive brush wear due to poor lubrication.
6. Back-up roller must be checked and
replaced if worn, Badly worn back-up roller allow non-uniform brushing
and can result in adhesion problems. It is important that the brush
is parallel to the back-up roller. See # 2 under Dressing procedure.
7. Extra brush pressure does not necessarily mean better scrubbing.
To the contrary, it can lead to nylon smear, excessive wearing of
back-up roller, and nylon fibers contaminating the holes. If a brush
is not “cutting” properly, it may be time to dress the brush by
using the dressboard as outlined in Step #4.
8. Acid pre-dips must be thoroughly rinsed prior to being brushed.
Acid reacting with the metal in the machine can create chromatic
particles contaminating the panels.
9. Conveying panels through the machine too slowly can create a
polished or burnished surface, rather than a surface conductive
to proper adhesion of resist.
10. Stagger the feeding of panels across the full conveyor width.
This will assure uniform brush wear and substantially extend the
life of back-up Rollers and brushes.
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