CAUTION

When using the tool at any value except the full speed (Dial scale 6), the motor cannot be sufficiently cooled due to the decreased number of revolution. This could result in the risk of burning and damaging the motor before an overload protective mechanism starts to function.

Make sure that you use the tool by lightly applying it to the surface of material when you use it at any value except the full speed (Dial scale 6).

2.Grinding angle

Do not apply the entire surface of the depressed center wheel to the material to be ground. As shown in Fig. 3, the machine should be held at an angle of 15° – 30° so that the external edge of the depressed center wheel contacts the material at an optimum angle.

15°~30°

A B

Fig. 3

3.To prevent a new depressed center wheel from digging into the workpiece, initial grinding should be performed by drawing the grinder across the workpiece toward the operator (Fig. 3 direction B). Once the leading edge of the depressed center wheel is properly abraded, grinding may be conducted in either direction.

4.Precautions immediately after finishing operation The wheel continues to rotate after the tool is switched off.

After switching off the machine, do not put it down until the depressed center wheel has come to a

complete stop. Apart from avoiding serious accidents, this precaution will reduce the amount of dust and swarf sucked into the machine.

CAUTIONS

￿Check that the work piece is properly supported.

￿Ensure that ventilation openings are kept clear when working in dusty conditions.

If it should become necessary to clear dust, first disconnect the tool from the mains supply (use non- metallic objects) and avoid damaging internal parts.

￿Ensure that sparks resulting from use do not create a hazard e.g. do not hit persons, or ignite flammable substances.

￿Always use eye and ear protection.

Other personal protective equipment such as dust mask, gloves, helmet and apron should be worn when necessary.

If in doubt, wear the protective equipment.

￿When the machine is not use, the power source should be disconnected.

ASSEMBLING AND DISASSEMBLING ACCESSORIES (Fig. 4)

CAUTION: Be sure to switch OFF and disconnect the attachment plug from the receptacle to avoid a serious accident.

<DEPRESSED CENTER WHEEL> 1. Assembling (Fig. 4)

(1)Turn the equipment upside-down so that the spindle will be facing up.

(2)Mount the wheel washer onto the spindle.

(3)Fit the protuberance of the depressed center wheel onto the wheel washer.

(4)Screw from above the wheel nut onto the spindle.

(5)As shown in Fig. 4, push in the push button to

prevent rotation of the spindle. Then, secure the depressed center wheel by tightening the wheel nut with the wrench.

2.Disassembling

Follow the above procedures in reverse.

<RADIAL GRINDING DISC/DIAMOND WHEEL> Same as depressed center wheel.

<SANDING DISC>

1. Assembling (Fig. 4)

(1)Turn the equipment upside-down so that the spindle will be facing up.

(2)After placing the sanding disc on the rubber pad, thread the washer nut onto the spindle.

(3)Press the push button to secure the spindle and tighten the washer nut with a wrench.

2.Disassembling

Follow the above procedures in reverse.

CAUTIONS

￿Confirm that the depressed center wheel is mounted firmly.

￿Confirm that the push button is disengaged by pushing push button two or three times before switching the power tool on.

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