Manual Makita GA7050R (page 9 of 88) (English, German, Dutch, Danish, French, Italian, Portuguese, Spanish)

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using a diamond wheel, the ordinary guard can be

used.)

For tool with locking screw type wheel guard (Fig. 5)

Mount the wheel guard with the protrusion on the wheel

guard band aligned with the notch on the bearing box.

Then rotate the wheel guard around 180 degrees

counterclockwise. Be sure to tighten the screw securely.

To remove wheel guard, follow the installation procedure

in reverse.

For tool with clamp lever type wheel guard (Fig. 6 & 7)

Loosen the lever on the wheel guard. Mount the wheel

guard with the protrusion on the wheel guard band aligned

with the notch on the bearing box. Then rotate the wheel

guard around to the position shown in the figure. Tighten

the lever to fasten the wheel guard. If the lever is too tight

or too loose to fasten the wheel guard, loosen or tighten

the nut to adjust the tightening of the wheel guard band.

To remove wheel guard, follow the installation procedure

in reverse.

Installing or removing depressed center

grinding wheel/Multi-disc (optional

accessory)

WARNING:

• Always use supplied guard when depressed center

grinding wheel/Multi-disc is on tool. Wheel can shatter

during use and guard helps to reduce chances of

personal injury. (Fig. 8)

Mount the inner flange onto the spindle. Fit the wheel/disc

on the inner flange and screw the lock nut onto the

spindle.

WARNING:

• Never use a more than 6.5 mm thick grinding wheel.

Super flange

Models with the letter F are standard-equipped with a

super flange. Only 1/3 of efforts needed to undo lock nut,

compared with conventional type.

NOTE:

• Only for tools with M14 spindle thread

For Australia and New Zealand (Fig. 9)

Mount the inner flange onto the spindle. Fit the wheel/disc

on the inner flange and screw the lock nut with its

protrusion facing downward (facing toward the wheel).

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. 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 & 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 a

hole and turn Ezynut counterclockwise.

• Only for tools with M14 spindle thread

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 (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.

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Makita GA7050R Manual

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