Bosch GWS18V-13C Instrucciones De Funcionamiento Y Seguridad página 26

SANDING WOOD
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 occa-
sionally create generally prohibit their use for
producing the final finish.
Scratches and circular marks are usually the re-
sult 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.
SANDING METAL
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 scratch-
es. To produce smooth finish, use fine grit disc.
Wire Brush Operations
Avoid bouncing and snag-
ging the wire brush, espe-
cially when working corners, sharp edges etc.
This can cause loss of control and kick-back.
Wire brushes are intended to "clean" structural
steel, castings, sheet metal, stone and concrete.
They are used to remove rust, scale and paint.
BRUSHING PRESSURE
1. Remember, the tips of a wire brush do the
work. Operate the brush with the lightest
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.
160992A7PL GWS18V-13CP 202206.indd 26
Operating Instructions
-26-
WIRE WHEEL BRUSH
CORRECT:
Wire tips
doing
the work.
INCORRECT:
Excessive
pressure can
cause wire
breakage.
WIRE CUP BRUSH
CORRECT:
Wire tips
doing
the work.
INCORRECT:
Excessive
pressure can
cause wire
breakage.
6/22/22 2:39 PM