Makita DGA450 Manuel D'instruction page 10

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011576
Installing or removing flex wheel
(optional accessory)
007241
WARNING:
Always use supplied guard when flex wheel is on
•
tool. Wheel can shatter during use and guard
helps to reduce chances of personal injury.
Follow instructions for depressed center grinding
wheel/Multi-disc but also use plastic pad over wheel.
See order of assembly on accessories page in this
manual.
Installing or removing abrasive disc
(optional accessory)
007240
NOTE:
Use sander accessories specified in this manual.
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These must be purchased separately.
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
2. Diamond wheel
3. Inner flange
4. Spindle
7/8"
4
1. Lock nut
1
2. Flex wheel
2
3. Plastic pad
4. Inner flange
3
4
1. Lock nut
1
2. Abrasive disc
2
3. Rubber pad
3
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
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grinding.
NEVER bang or hit grinding disc or wheel onto
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work.
Avoid bouncing
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especially when working corners, sharp edges etc.
This can cause loss of control and kickback.
NEVER use tool with wood cutting blades and
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other sawblades. Such blades when used on a
grinder frequently kick and cause loss of control
leading to personal injury.
CAUTION:
Make the depth of a single cut up to 5 mm. Adjust
•
pressure on the tool so that the tool does not slow
down during the operation.
After operation, always switch off the tool and wait
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until the wheel has come to a complete stop
before putting the tool down.
If the tool is operated continuously until the battery
•
cartridge has discharged, allow the tool to rest for
15 minutes before proceeding with a fresh battery.
Grinding and sanding operation
A
B
007221
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 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.
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and snagging the wheel,