Makita GA4040 Manuel D'instruction page 9

lock firmly so that the spindle cannot revolve, then use
the lock nut wrench and securely tighten clockwise.
To remove the disc, follow the installation procedure in
reverse.
Installing or removing dust cover attachment
(Optional accessory)
WARNING:
Always be sure that the tool is switched off and
•
unplugged before installing or removing the
dust cover attachment. Failure to do so causes
damage to the tool or a personal injury.
There are four pieces of dust cover attachment and each
is used in one of different positions.
1
3
012731
Set the dust cover attachment so that the marking (A, B,
C or D) places as shown. Snap its pins in the vents.
Dust cover attachment can be removed by hand.
NOTE:
Clean out the dust cover attachment when it is
•
clogged with dust or foreign matters. Continuing
operation with a clogged dust cover attachment will
damage the tool.
OPERATION
WARNING:
It should never be necessary to force the tool. The
•
weight of the tool applies adequate pressure.
Forcing and excessive pressure could cause
dangerous wheel breakage.
ALWAYS replace wheel if tool is dropped while
•
grinding.
NEVER bang or hit grinding disc or wheel onto
•
work.
Avoid bouncing and snagging the wheel, especially
•
when working corners, sharp edges etc. This can
cause loss of control and kickback.
NEVER use tool with wood cutting blades and other
•
1. Marking A
2. Marking B
3. Marking C
4. Marking D
2
4
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.
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 and sanding operation
A
012730
ALWAYS hold the tool firmly with one hand on housing
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 ﾟ 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)
1
2
3
010855
The direction for mounting the lock nut and the inner
flange varies by wheel thickness.
Refer to the table below.
9
1. Lock nut
2. Abrasive cut-off
wheel/diamond
wheel
3. Inner flange
4
4. Wheel guard for
abrasive cut-off
wheel/diamond
wheel