Makita DGA519, Instruction Manual

Page: 16 / 72

16 ENGLISH
1. To install the X-LOCK wheel, make sure that both
catches are in the unlocked position.
If not, push the release lever from A side to lift B
side, then pull the release lever from B side as
illustrated. The catches are set in the unlocked
position.
► Fig.15: 1. Catch 2. Release lever
2. Place a central position of the X-LOCK wheel on
the holder.
Make sure the X-LOCK wheel is parallel to the
flange surface and with the correct side facing up.
3. Push the X-LOCK wheel into the holder. The
catches snap into the lock position with a click and
fix the X-LOCK wheel.
► Fig.16: 1. X-LOCK wheel 2. Holder 3. Flange sur -
face 4. Catch
4. Make sure the X-LOCK wheel is fixed correctly.
The surface of the X-LOCK wheel is no higher
than the surface of the holder as shown in the
figure.
If not, the holder must be cleaned or the X-LOCK
wheel must not be used.
► Fig.17: 1. Surface of the holder 2. Surface of the
X-LOCK wheel
To remove the X-LOCK wheel, push the release lever
from A side to lift B side, then pull the release lever from
B side as illustrated.
The X-LOCK wheel is released and can be removed.
► Fig.18: 1. Release lever
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.
WARNING:
Never actuate the release lever of
the X-LOCK holder during operation. The X-LOCK
wheel comes off from the tool and may cause serious
injury.
WARNING:
Make sure that the X-LOCK wheel
is fixed firmly.
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).
Grinding and sanding operation
►
Fig.19
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° 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
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:
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 pres -
sure on the cut-off wheel (as in grinding) will cause
the wheel to crack and break, causing serious per -
sonal injury.
WARNING:
A diamond wheel shall be oper -
ated perpendicular to the material being cut.
Usage example: operation with abrasive cut-off
wheel
► Fig.20
Usage example: operation with diamond wheel
► Fig.21