Operation - RIDGID R2720 Operator's Manual

OPERATION

WARNING:
Do not allow familiarity with tools to make you
careless. Remember that a careless fraction of a
second is sufficient to inflict serious injury.
WARNING:
Always wear safety goggles or safety
glasses with side shields when operating
power tools. Failure to do so could result
in objects being thrown into your eyes
resulting in possible serious injury.
WARNING:
Do not use any attachments or accessories
not recommended by the manufacturer of this
tool. The use of attachments or accessories not
recommended can result in serious personal
injury.
WARNING:
Before connecting the sander to a power supply,
make sure it is not in the locked-on position. Failure
to do so could result in accidental starting of the
tool resulting in serious injury.
MATERIAL
UNDRESSED LUMBER
SOFTWOOD
CHIPBOARD
LUMBER
RUST REMOVAL
PAINTED SURFACE
NON FERROUS METAL
SPEED
A B C D
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APPLICATIONS
You may use this tool for the purposes listed below:
n Sanding wood, metals, plastics, and other materials
n Smoothing rough boards, chamfering, rounding edges
n Removing rust, paint, varnishes, and stains
WARNING:
If your sanding job becomes particularly dusty or if
you have a breathing condition, wear a dust mask
or respirator to prevent damage to your health.
SELECTING SANDING BELTS
Selecting the correct size and type of sanding belt is an
important step in achieving a high quality sanded finish. Alu-
minum oxide, silicon carbide, and other synthetic abrasives
are best for power sanding.
In general, when sanding, coarse grit removes the most ma-
terial and fine grit produces the best finish. The condition of
the surface to be sanded determines which grit will do the
best job. If the surface is rough, start with a coarse grit and
sand until the surface is uniform. Then use medium grit to
remove scratches left by the coarser grit. Finally, use finer
grit for finishing the surface. Always continue sanding with
each grit until the surface is uniform.
SETTING THE BELT SANDER SPEED
Refer to the chart below for belt sander speed selections.
E F 40 60
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10
BELT GRIT
80 100 150 240