Manual Makita DGA900 (page 12 of 112) (English, German, Dutch, Danish, French, Italian, Portuguese, Turkish, Spanish)

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12 ENGLISH

For tool with clamp lever type wheel

guard

Loosen the nut, and then pull the lever in the direction

of the arrow.

► Fig.9: 1. Nut 2. Lever

Mount the wheel guard with the protrusions on the

wheel guard band aligned with the notches on the bear-

ing box. Then rotate the wheel guard to such an angle

that it can protect the operator according to work.

► Fig.10: 1. Wheel guard 2. Bearing box

► Fig.11: 1. Wheel guard

Close the lever in direction of the arrow. Then tighten

the wheel guard with fastening the nut. Be sure to

tighten the nut securely. The setting angle of the wheel

guard can be adjusted by opening the lever.

► Fig.12: 1. Lever 2. Nut

To remove wheel guard, follow the installation proce-

dure in reverse.

Installing or removing depressed

center wheel or ap disc

Optional accessory

WARNING: When using a depressed center

wheel or ap disc, the wheel guard must be tted

on the tool so that the closed side of the guard

always points toward the operator.

CAUTION: Make sure that the mounting part

of the inner ange ts into the inner diameter of

the depressed center wheel / ap disc perfectly.

Mounting the inner ange on the wrong side may

result in the dangerous vibration.

Mount the inner ange onto the spindle.

Make sure to t the dented part of the inner ange onto

the straight part at the bottom of the spindle.

Fit the wheel/ disc on the inner ange and screw the

lock nut with its protrusion facing downward (facing

towards the wheel).

► Fig.13: 1. Lock nut 2. Depressed center wheel

3. Inner ange 4. Mounting part

To tighten the lock nut, press the shaft lock rmly so

that the spindle cannot revolve, then use the lock nut

wrench and securely tighten clockwise.

► Fig.14: 1. Lock nut wrench 2. Shaft lock

To remove the wheel, follow the installation procedure

in reverse.

Installing or removing ex wheel

Optional accessory

WARNING: Always use supplied guard when

ex wheel is on tool. Wheel can shatter during use

and guard helps to reduce chances of personal injury.

► Fig.15: 1. Lock nut 2. Flex wheel 3. Back up pad

4. Inner ange

Follow instructions for depressed center wheel but also

use back up pad over wheel. See order of assembly on

accessories page in this manual.

Installing or removing abrasive disc

Optional accessory

► Fig.16: 1. Sanding lock nut 2. Abrasive disc

3. Rubber pad

1. Mount the rubber pad onto the spindle.

2. Fit the disc on the rubber pad and screw the sand-

ing lock nut onto the spindle.

Hold the spindle with the shaft lock, and securely tighten

the sanding lock nut clockwise with the lock nut wrench.

To remove the disc, follow the installation procedure in

reverse.

NOTE: Use sander accessories specied in this man-

ual. These must be purchased separately.

OPERATION

WARNING: It should never be necessary to

force the tool. The weight of the tool applies ade-

quate pressure. Forcing and excessive pressure

could cause dangerous wheel breakage.

WARNING: ALWAYS replace wheel if tool is

dropped while grinding.

WARNING: NEVER bang or hit grinding disc

or wheel onto work.

WARNING:

Avoid bouncing and snagging the

wheel, especially when working corners, sharp

edges etc. This can cause loss of control and kickback.

WARNING: NEVER use tool with wood cutting

blades and other saw blades. 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.

CAUTION: Always wear safety goggles or a

face shield during operation.

CAUTION: After operation, always switch off

the tool and wait until the wheel has come to a

complete stop before putting the tool down.

CAUTION: ALWAYS hold the tool rmly with

one hand on housing and the other on the side

grip (handle).

Grinding and sanding operation

► Fig.17

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° to the workpiece surface.

During the break-in period with a new wheel, do not

work the grinder in forward direction or it may cut into

the workpiece. Once the edge of the wheel has been

rounded off by use, the wheel may be worked in both

forward and backward direction.

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Makita DGA900 Manual

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