Makita GA5080R Manual De Instrucciones página 13

Grinding and sanding operation
► Fig.20
Turn the tool on and then apply the wheel to the workpiece.
In general, keep the edge of the wheel at an angle of
about 15° to the workpiece surface.
During the break-in period with a new wheel, do not work the
grinder in forward direction or it may cut into the workpiece.
Once the edge of the wheel has been rounded off by use, the
wheel may be worked in both forward and backward direction.
Operation with abrasive cut-off /
diamond wheel
Optional accessory
WARNING:
Do not "jam" the wheel or apply
excessive pressure. Do not attempt to make an exces-
sive depth of cut. Overstressing the wheel increases
the loading and susceptibility to twisting or binding of the
wheel in the cut and the possibility of kickback, wheel
breakage and overheating of the motor may occur.
WARNING:
Do not start the cutting operation
in the workpiece. Let the wheel reach full speed and
carefully enter into the cut moving the tool forward
over the workpiece surface. The wheel may bind, walk
up or kickback if the power tool is started in the workpiece.
WARNING:
During cutting operations, never
change the angle of the wheel. Placing side pressure
on the cut-off wheel (as in grinding) will cause the wheel
to crack and break, causing serious personal injury.
WARNING:
A diamond wheel shall be oper-
ated perpendicular to the material being cut.
WARNING:
NEVER use cut-off wheel for side grinding.
Usage example: operation with abrasive cut-off wheel
► Fig.21
Usage example: operation with diamond wheel
► Fig.22
Operation with wire wheel brush
Optional accessory
CAUTION:
Check operation of wire wheel brush
by running tool with no load, insuring that no one is
in front of or in line with the wire wheel brush.
CAUTION:
Do not use wire wheel brush that
is damaged, or which is out of balance. Use of
damaged wire wheel brush could increase potential
for injury from contact with broken wires.
CAUTION:
ALWAYS use wire wheel brushes
with the wheel guard, assuring diameter of wheel
fits inside the guard. Wheel can shatter during use
and guard helps to reduce chances of personal injury.
NOTICE:
Avoid applying too much pressure which
causes over bending of wires when using wire
wheel brush. It may lead to premature breakage.
Usage example: operation with wire wheel brush
► Fig.23
Operation with wire cup brush
Optional accessory
CAUTION:
Check operation of wire cup brush
by running tool with no load, insuring that no one
is in front of or in line with brush.
CAUTION:
Do not use brush that is damaged,
or which is out of balance. Use of damaged brush
could increase potential for injury from contact with
broken brush wires.
NOTICE:
Avoid applying too much pressure
which causes over bending of wires when using
the wire cup brush. It may lead to premature
breakage.
Usage example: operation with wire cup brush
► Fig.24
MAINTENANCE
CAUTION:
Always be sure that the tool is
switched off and unplugged before attempting to
perform inspection or maintenance.
NOTICE:
Never use gasoline, benzine, thinner,
alcohol or the like. Discoloration, deformation or
cracks may result.
To maintain product SAFETY and RELIABILITY,
repairs, any other maintenance or adjustment should
be performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.
Air vent cleaning
The tool and its air vents have to be kept clean.
Regularly clean the tool's air vents or whenever the
vents start to become obstructed.
► Fig.25: 1. Exhaust vent 2. Inhalation vent
13 ENGLISH