HIKOKI G 10ST Handling Instructies Handleiding - Pagina 13

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STANDARD ACCESSORIES

(1) Depressed center wheel ............................................ 1

(Resinoid Wheel)

external dia.

thickness

hole dia.

(2) Wrench ........................................................................ 1

Standard accessories are subject to change without notice.

OPTIONAL ACCESSORIES ...... sold separately

CAUTION:

Always operate the grinder with the wheel guard

attached.

1. 100mm Sanding Disc Set

Sanding Disc

Washer Nut

In case when only a relatively small metal surface

area is to be polished and it is desired to give it

a particularly fine finish, this is used for preliminary

polishing of the metal surface before applying point,

for removing rust, and for removing point when a

new test is to be applied.

There are eleven different kinds of sanding discs,

having grains of #16, #20, #24, #30, #36, #40, #50,

#60, #80, #100, #120. When placing your order,

please specify the grain of the disc desired.

APPLICATIONS

Removal of casting fin and finishing of various

types of steel, bronze and aluminum materials and

castings.

Grinding of welded sections or sections cut by

means of a cutting torch.

Grinding of brick, marble, etc.

PRIOR TO OPERATION

1. Power source

Ensure that the power source to be utilized con-

forms to the power requirements specified on the

product nameplate.

CAUTION:

Do not operate from a direct current power source.

Doing so may not only cause damage to the grinder,

but may lead to accidents.

2. Power switch

Ensure that the power switch is in the OFF position.

If the plug is connected to a receptacle while the

power switch is in the ON position, the power tool

will start operating immediately, which could cause

a serious accident.

Switch position is indicated as I-mark on Tail Cover

stands for ON position and O-mark stands for OFF

position respectively.

100 mm

4 mm

16 mm

Rubber Pad

Washer

3. Extension cord

When the work area is removed from the power

source, use an extension cord of sufficient thickness

and rated capacity. The extension cord should be

kept as short as practicable.

4. Confirming condition of the environment

Confirm that the work site is placed under appro-

priate conditions conforming to prescribed

precautions.

When grinding a thin steel plate, depending upon

the state of the workbench, a loud noise will be

created due to resounding noise from the steel

plate being ground. To eliminate nuwanted noise

in this instance, place a rubber mat beneath the

material to be ground.

5. Mounting the wheel guard

Be sure to mount the wheel guard at an angle that

will protect the operator's body from injury by a

broken wheel piece.

6. Confirm the lock pin

Confirm that the lock pin is disengaged by pushing

lock pin two or three times before switching the

power tool on.

7. Confirming and mounting the depressed center

wheel.

Throughly check that a specified depressed center

wheel is free of cracks and splits is mounted.

Confirm that the depressed center wheel is mounted

under the specified condition and is firmly clamped.

For details, refer to the item "Assembling and Dis-

assembling the depressed center wheel."

8. Apply a trial run

To start grinding work without checking for possible

cracks and splits in the depressed center wheel is

very dangerous. Prior to start of grinding, direct the

grinder in a direction where no one is present, and

apply a trial run without fail to confirm that the

grinder displays no abnormalities.

Duration of the trial run is as follows:

When depressed center wheels is replaced

................................................ 3 minutes or more

When starting daily work ...... 1 minute or more

PRACTICAL GRINDER APPLICATIONS

1. Since grinding by utilizing only the grinder's own

weight is feasible, the grinder should never be

pressed forcibly against the plane to be ground

Hold the grinder lightly so that it only slightly

contacts the plane to be ground.

Heavy pressure will reduce the revolving speed and

such deteriorate the finished surface, and phenom-

ena as overload will lead to burning out of the

motor.

2. Do not utilize the grinder entire surface when grinding.

Use only its peripheral surface by tilting the wheel

at an angle of 15~30°, as shown in Fig. 1.

3. When a grinder equipped with a new depressed

center wheel is pushed forward (direction A), the

wheel edge may occasionally cut into the material

to be ground. Always pull it backward (direction B)

in this instance.

However, once the depressed center wheel angle

has been adequately abraded, both forward and

backward operations are permissible.