Makita M9000 Betriebsanleitung Seite 10

Installing dust collecting wheel
guard for cutting-off
Optional accessory
With optional accessories, you can use this tool for
cutting stone materials.
► Fig.9
NOTE: For information how to install the dust col-
lecting wheel guard, refer to the manual of the dust
collecting wheel guard.
OPERATION
WARNING:
It should never be necessary to
force the tool. The weight of the tool applies ade-
quate pressure. Forcing and excessive pressure
could cause dangerous wheel breakage.
WARNING:
ALWAYS replace wheel if tool is
dropped while grinding.
WARNING:
NEVER hit the workpiece with the wheel.
WARNING:
Avoid bouncing and snagging the
wheel, especially when working corners, sharp
edges etc. This can cause loss of control and kickback.
WARNING:
NEVER use tool with wood cutting
blades and other saw blades. Such blades when
used on a grinder frequently kick and cause loss of
control leading to personal injury.
CAUTION:
Never switch on the tool when it
is in contact with the workpiece, it may cause an
injury to operator.
CAUTION:
Always wear safety goggles or a
face shield during operation.
CAUTION:
After operation, always switch off
the tool and wait until the wheel has come to a
complete stop before putting the tool down.
CAUTION:
ALWAYS hold the tool firmly with
one hand on housing and the other on the side
grip (handle).
NOTE: A dual purpose wheel can be used for both
grinding and cutting-off operations.
Refer to the "Grinding operation" for grinding opera-
tion, and refer to the "Operation with abrasive cut-off /
diamond wheel" for cutting-off operation.
Grinding operation
► Fig.10
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:
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.
WARNING:
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:
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:
ated perpendicular to the material being cut.
Usage example: operation with abrasive cut-off wheel
► Fig.11
Usage example: operation with diamond wheel
► Fig.12
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.13: 1. Exhaust vent 2. Inhalation vent
Replacing carbon brushes
► Fig.14: 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 automatically 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.15: 1. Brush holder cap 2. Screwdriver
10 ENGLISH
Do not "jam" the wheel or apply excessive
Do not start the cutting operation
During cutting operations, never
A diamond wheel shall be oper-