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SELECTING ABRASIVES
The following suggestions may be used as a
general guide for abrasive selection, but the
best results will be obtained by sanding a test
sample of the workpiece first.
Grit
Application
Coarse For rough wood, metal sanding,
80 grit rust, paint, or old material removal.
Medium For general wood or metal sanding.
120 grit
Extra fine For final sanding of bare wood,
220 grit smoothing old paint, or preparing a
finished surface for recoating.
With the workpiece firmly secured, turn tool
“ON”. Contact the work with the tool after the
sander has reached the selected speed, and
remove it from the work before switching the
tool “OFF”. Operating your sander in this
manner will prolong switch and motor life, and
greatly increase the quality of your work.
Your contour sander uses an in-line sanding
motion. The best surface finish will be
achieved while operating the sander in-line
with the wood grain. Faster stock removal can
be achieved by operating the sander across
the grain when working out rough areas, then
finishing by sanding with the grain.
DO NOT APPLY EXCESSIVE PRESSURE —
LET THE TOOL DO THE WORK. EXCESSIVE
PRESSURE WILL RESULT IN POOR
HANDLING, VIBRATION, AND UNWANTED
SANDING MARKS.
If the surface is rough, begin with coarser grits
and then complete the surfacing with medium
and fine abrasives. To avoid uneven results, do
not skip more than one grit size when going
from coarser to finer, and do not sand in one
area for too long. When the job is completed,
gently lift the tool from the work surface and
slide switch to the "OFF" position.
To ensure longer life and even wear, lightly
brush any residue or clogged materials from
sandpaper surface prior to each use.
Do not wet sand with this
sander.
WARNING
!
Maintenance
Service
Preventive maintenance
performed by unauthorized
personnel may result in misplacing of
internal wires and components which could
cause serious hazard. We recommend that
all tool service be performed by a Dremel
Service Facility.
CARBON BRUSHES
The brushes and commutator in your tool have
been engineered for many hours of
dependable service. To maintain peak
efficiency of the motor, we recommend every
two to six months the brushes be examined.
Only genuine Dremel replacement brushes
specially designed for your tool should be
used.
MAINTENANCE OF
REPLACEABLE BRUSHES
#5090930
The brushes should be inspected frequently
when tools are used continuously. If your tool
runs sporadically, loses power, makes
unusual noises or runs at a reduced speed,
check the brushes. To continue using the tool
in this condition will permanently damage
your tool.
With the cord unplugged, remove the brush
caps one at a time with a small screwdriver
by rotating cap counter-clockwise and check
each brush.
If the brush is less than 1/8" long and the end
surface of the brush that contacts the
commutator is rough and/or pitted, they
should be replaced. Check both brushes.
Usually the brushes will not wear out simul-
taneously. If one brush is worn out, replace
both brushes. Make sure the brushes are
installed as illustrated. The curved surface of
the brush must match the curvature of the
commutator.
WARNING
!
CURVATURE
OF HOUSING
BRUSH CAP
BRUSH
SPRING
CURVED END OF BRUSH
MUST MATCH CURVATURE
OF HOUSING
BRUSH
WASHER
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