9
Installing or removing depressed center
grinding wheel/Multi-disc (accessory)
Fig.7
Mount the inner flange onto the spindle. Fit the
wheel/disc on the inner flange 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.
Fig.8
To remove the wheel, follow the installation procedure in
reverse.
Super flange
Models GA7010CF and GA9010CF are
standard-equipped with a super flange. Only 1/3 of
efforts needed to undo lock nut, compared with
conventional type.
Installing or removing abrasive disc
(optional accessory)
NOTE:
•
Use sander accessories specified in this manual.
These must be purchased separately.
Fig.9
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.
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 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
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.
Fig.10
Operation with wire cup brush / wire bevel
brush (optional accessory)
CAUTION:
•
Check operation of brush by running tool with no
load, insuring that no one is in front of or in line with
brush.
•
Do not use brush that is damaged, or which is out
of balance. Use of damaged brush could increase
potential for injury from contact with broken brush
wires.
Fig.11
Unplug tool and place it upside down allowing easy
access to spindle. Remove any accessories on spindle.
Thread wire cup brush / wire bevel brush onto spindle
and tighten with supplied wrench. When using brush,
avoid applying too much pressure which causes over
bending of wires, leading to premature breakage.
Operation with abrasive cut-off / diamond
wheel (optional accessory)
WARNING:
•
When using an abrasive cut-off / diamond wheel,
be sure to use only the special wheel guard
designed for use with cut-off wheels.(In some
European countries, when using a diamond wheel,
the ordinary guard can be used. Follow the
regulations in your country.)
•
NEVER use cut-off wheel for side grinding.
•
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.
