Makita GA7040R Manuel D'instruction page 7

Installing or removing depressed center
grinding wheel/Multi-disc (accessory)
WARNING:
Always use supplied guard when depressed
•
center grinding wheel/Multi-disc is on tool. Wheel
can shatter during use and guard helps to reduce
chances of personal injury.
013991
Mount the inner flange onto the spindle. Fit the
wheel/disc on the inner flange and screw the lock nut
onto the spindle.
Installing or removing abrasive disc
(optional accessory)
NOTE:
Use sander accessories specified in this manual.
•
These must be purchased separately.
1
2
3
010658
Mount the rubber pad onto the spindle. Fit the disc on
the rubber pad and screw the lock nut onto the spindle.
To tighten the lock nut, press the shaft 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.
1. Lock nut
1
2. Depressed
center grinding
2
wheel/Multi-disc
3
3. Inner flange
1. Lock nut
2. Abrasive disc
3. Rubber pad
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
•
especially when working corners, sharp edges etc.
This can cause loss of control and kickback.
NEVER use tool with wood cutting blades and
•
other sawblades. 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 B
15°
010684
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.
7
and snagging the wheel,