Makita M9000 Bedienungsanleitung Seite 8

CAUTION:
• Never switch on the tool when it is in contact
with the workpiece, it may cause an injury to
operator.
• Always wear safety goggles or a face shield
during operation.
• After operation, always switch off the tool and
wait until the wheel has come to a complete stop
before putting the tool down.
Grinding operation
► Fig.7
ALWAYS hold the tool firmly with one hand on rear
handle and the other on the side handle. Turn the tool
on and then apply the wheel or disc to the workpiece.
In general, keep the edge of the wheel or disc at an
angle of about 15 degrees to the workpiece surface.
During the break-in period with a new wheel, do not
work the grinder in the B direction or it will cut into
the workpiece. Once the edge of the wheel has been
rounded off by use, the wheel may be worked in both A
and B direction.
Operation with abrasive cut-off /
diamond wheel (optional accessory)
WARNING:
• When using an abrasive cut-off / diamond
wheel, be sure to use only the special wheel
guard designed for use with cut-off wheels.
• NEVER use cut-off wheel for side grinding.
• Do not "jam" the wheel or apply excessive
pressure. Do not attempt to make an excessive
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.
• Do not start the cutting operation in the work-
piece. Let the wheel reach full speed and care-
fully 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.
• 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 per-
sonal injury.
• A diamond wheel shall be operated perpendicu-
lar to the material being cut.
Mount the inner flange onto the spindle. Fit the wheel/
disc on the inner flange and screw the lock nut onto the
spindle.
► Fig.8: 1. Lock nut 2. Abrasive cut-off wheel/dia-
mond wheel 3. Inner flange 4. Wheel guard
for abrasive cut-off wheel/diamond wheel
For Australia and New Zealand
Installing or removing abrasive cut-
off wheel / diamond wheel (optional
accessory)
► Fig.9: 1. Lock nut 2. Outer flange 78 3. Abrasive
cut-off wheel/diamond wheel 4. Inner flange
78 5. Wheel guard for abrasive cut-off wheel/
diamond wheel
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspec-
tion or maintenance.
• Never use gasoline, benzine, thinner, alcohol
or the like. Discoloration, deformation or cracks
may result.
► Fig.10: 1. Exhaust vent 2. Inhalation vent
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.
Replacing carbon brushes
► Fig.11: 1. Commutator 2. Insulating tip 3. Carbon
brush
When the resin insulating tip inside the carbon brush
is exposed to contact the commutator, it will automati-
cally shut off the motor. When this occurs, both carbon
brushes should be replaced. Keep the carbon brushes
clean and free to slip in the holders. Both carbon
brushes should be replaced at the same time. Use only
identical carbon brushes.
Use a screwdriver to remove the brush holder caps.
Take out the worn carbon brushes, insert the new ones
and secure the brush holder caps.
► Fig.12: 1. Brush holder cap 2. Screwdriver
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be per-
formed by Makita Authorized Service Centers, always
using Makita replacement parts.
8 ENGLISH