Panasonic EY4640 - Manual (Page 13)

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To start the tool, press and slide the
power switch toward the “ON” posi-tion.
For continuous operation, press the
front of the power switch to lock it.
To stop the tool, press the rear of the
power switch, then slide it toward the
“OFF” position.
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 grinding
disc breakage.
• ALWAYS replace grinding disc if
tool is dropped while grinding.
• NEVER bang or hit grinding disc.
• Avoid bouncing and snagging the
grinding disc, especially when
working corners, sharp edges etc.
This can cause loss of control and
kickback.
CAUTION:
• After operation, always switch off
the tool and wait until the wheel
has come to a complete stop be-
fore putting the tool down.
Visual inspection and workout
test on disc
1. Always make sure that the disc has
no cracks before use.
2. Always give workout test on the
blade as follows.
3. Always make sure the disc is firmly
fixed.
Work out time
Brand new disc more than 3 min.
Before use on
current disc
more than 1 min.
Grinding operation
A B
ALWAYS hold the tool firmly with one
hand on grip and the other on the side
handle. Turn on the tool on and then ap-
ply the wheel or disc to the workpiece.
In general, keep the edge of the wheel
or grinding disc at an angle of about 15
degrees to the workpiece surface.
When using a new grinding disc, do not
work the grinder in the B direction or it will
cut into the workpiece. Once the edge of
the grinding disc has been rounded off by
use, the grinding disc may be worked in
both A and B direction.