Makita ga7020sf [7/28] Accessories
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Makita ga7020sf [7/28] Accessories

7
Super flange (Fig. 6)
Models GA7020F,GA7020SF,GA9020F and 9020SF are
standard-equipped with a super flange. Only 1/3 of efforts
needed to undo lock nut, compared with conventional
type.
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 wheel, 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 grind-
ing.
• 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 fre-
quently kick and cause loss of control leading to per-
sonal 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. 7)
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 work-
piece. Once the edge of the wheel has been rounded off
by use, the wheel may be worked in both A and B direc-
tion.
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection or
maintenance.
The tool and its air vents have to be kept clean. Regularly
clean the tool's air vents or whenever the vents start to
become obstructed. (Fig. 8)
Replacing carbon brushes
When the resin insulating tip inside the carbon brush is
exposed to contact the commutator, it will automatically
shut off the motor. When this occurs, both carbon brushes
should be replaced. Keep the carbon brushes clean and
free to slip in the holders. Both carbon brushes should be
replaced at the same time. Use only identical carbon
brushes. (Fig. 9)
Use a screwdriver to remove the brush holder caps. Take
out the worn carbon brushes, insert the new ones and
secure the brush holder caps. (Fig. 10)
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be per-
formed by Makita Authorized Service Centers, always
using Makita replacement parts.
ACCESSORIES
CAUTION:
• These accessories or attachments are recommended
for use with your Makita tool specified in this manual.
The use of any other accessories or attachments might
present a risk of injury to persons. Only use accessory
or attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
• Wheel guard (Wheel cover)
• Inner flange
• Depressed center wheels
• Lock nut (For depressed center wheel)
• Rubber pad
• Abrasive discs
• Lock nut (For abrasive disc)
• Lock nut wrench
• Cut-off wheels
• Inner flange (For cut-off wheel)
• Outer flange (For cut-off wheel)
• Wire cup brush
• Side grip
• Dust collecting wheel guard

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Super flange Fig 6 Replacing carbon brushes Models GA7020F GA7020SF GA9020F and 9020SF are standard equipped with a super flange Only 1 3 of efforts needed to undo lock nut compared with conventional type When the resin insulating tip inside the carbon brush is exposed to contact the commutator it will automatically shut off the motor When this occurs both carbon brushes should be replaced Keep the carbon brushes clean and free to slip in the holders Both carbon brushes should be replaced at the same time Use only identical carbon brushes Fig 9 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 wheel follow the installation procedure in reverse Use a screwdriver to remove the brush holder caps Take out the worn carbon brushes insert the new ones and secure the brush holder caps Fig 10 OPERATION To maintain product SAFETY and RELIABILITY repairs any other maintenance or adjustment should be per formed by Makita Authorized Service Centers always using Makita replacement parts 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 grind ing 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 fre quently kick and cause loss of control leading to per sonal 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 7 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 ACCESSORIES CAUTION These accessories or attachments are recommended for use with your Makita tool specified in this manual The use of any other accessories or attachments might present a risk of injury to persons Only use accessory or attachment for its stated purpose If you need any assistance for more details regarding these accessories ask your local Makita Service Center Wheel guard Wheel cover Inner flange Depressed center wheels Lock nut For depressed center wheel Rubber pad Abrasive discs Lock nut For abrasive disc Lock nut wrench Cut off wheels Inner flange For cut off wheel Outer flange For cut off wheel Wire cup brush Side grip Dust collecting wheel guard 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 work piece Once the edge of the wheel has been rounded off by use the wheel may be worked in both A and B direc tion MAINTENANCE CAUTION Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance The tool and its air vents have to be kept clean Regularly clean the tool s air vents or whenever the vents start to become obstructed Fig 8 7

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