Operation - Makita GA7050 Instruction Manual

Fig.10
To remove the wheel, follow the installation procedure in
reverse.
Installing or removing abrasive disc (optional
accessory)
NOTE:
Use sander accessories specified in this manual.
•
These must be purchased separately.
Fig.11
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.
Installing or removing Ezynut (optional
accessory)
CAUTION:
Do not use Ezynut with Super Flange or angle
•
grinder with "F" on the end of the model No. Those
flanges are so thick that the entire thread cannot be
retained by the spindle.
Fig.12
Mount inner flange , abrasive wheel/Multi-disc and
Ezynut onto the spindle so that Makita Logo on Ezynut
faces outside.
Fig.13
Press shaft lock firmly and tighten Ezynut by turning the
abrasive wheel/Multi-disc clockwise as far as it turns.
Turn the outside ring of Ezynut counterclockwise to
loosen.
Fig.14
Fig.15
NOTE:
Ezynut can be loosened by hand as long as the
•
arrow points the notch. Otherwise a lock nut
wrench is required to loosen it. Insert one pin of the
wrench into
counterclockwise.

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.
a hole and turn
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
Fig.16
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.
Operation with wire cup 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.17
Unplug tool and place it upside down allowing easy
access to spindle. Remove any accessories on spindle.
Ezynut
Mount wire cup 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 wire wheel brush (optional
accessory)
CAUTION:
Check operation of wire wheel brush by running
•
tool with no load, insuring that no one is in front of
or in line with the wire wheel brush.
Do not use wire wheel brush that is damaged, or
•
which is out of balance. Use of damaged wire
wheel brush could increase potential for injury from
contact with broken wires.
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