Bosch CAG180 Instrucciones De Funcionamiento Y Seguridad página 16

BM 1609929W30 03-10:BM 1609929W30 03-10 3/9/10 2:57 PM Page 16
SANDING TIPS
For best results, tilt the Disc Sander at a 10° to
15° angle while sanding so that only about 1"
of the surface around the edge of the disc
contacts the work.
If the disc (accessory) is held
W RNING
flat or the back edge of the
disc comes in contact with the work, a violent
thrust to the side may result.
If sander is tilted too much, sanding action will
be too great and a rough cut surface or
gouging and snagging will result.
Guide the Disc Sander with crosswise strokes.
Be careful not to hold the sander in one spot
too long. Do not use a circular motion, as this
makes swirl marks. Test before use on scrap stock.
Do not force or apply pressure when sanding.
Use only the weight of the tool for pressure.
Excess pressure actually slows the tool down.
If faster stock removal is desired, change to a
coarser grit disc.
Wire brushes are intended to "clean" structural
steel, castings, sheet metal, stone and
concrete. They are used to remove rust, scale
and paint.
Avoid bouncing and snagging
W RNING
the wire brush, especially
when working corners, sharp edges etc. This
can cause loss of control and kick-back.
BRUSHING PRESSURE
1. Remember, the tips of a wire brush do the
work. Operate the brush with the lightest
CORRECT:
Wire tips doing
the work.
CORRECT:
Wire tips doing
the work.
Remove gummy paint from metal with an
"open coat" disc. Sand until sparks start to
appear, then stop and change to a "closed
coat" disc to remove any remaining paint.
When sanding wood the direction of the disc
motion at the contact point should parallel the
grain as much as possible. The rapid cut of
discs and the swirl type scratch pattern they
occasionally create generally prohibit their use
for producing the final finish.
Scratches and circular marks are usually the
result of using too coarse a grit. When
changing to a finer grit, move across the sand-
ing lines that were made by a previous coarser
disc.
When sanding automobiles or appliances,
wipe the metal clean with a non-flammable
solvent or commercial cleaner to remove all
wax and grease. By doing this first, the
sanding discs will sand better and last longer.
For heavy duty work, use a coarse grit disc
first. Follow-up with a medium grit to remove
scratches. To produce smooth finish, use fine
grit disc.
Wire Brush Operations
pressure so only the tips of the wire come in
contact with the work.
2. If heavier pressures are used, the wires
will be overstressed, resulting in a wiping
action; and if this is continued, the life of the
brush will be shortened due to wire fatigue.
3. Apply the brush to the work in such a way
that as much of the brush face as possible is
in full contact with the work. Applying the side
or edge of the brush to the work will result in
wire breakage and shortened brush life.
WIRE WHEEL BRUSH
INCORRECT:
Excessive
pressure can
cause wire
breakage.
WIRE CUP BRUSH
INCORRECT:
Excessive pressure
can cause wire
breakage.
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SANDING WOOD
SANDING METAL