Manual Hitachi G18DSLS (page 12 of 88) (English, German, Dutch, French, Italian, Portuguese, Spanish)

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4. Ensure that mounted wheels and points are fitted

in accordance with the manufacturer’s instructions.

Ensure that the depressed center wheel to be utilized

is the correct type and free of cracks or surface

defects. Also ensure that the depressed center wheel

is properly mounted and the wheel nut is securely

tightened, Refer to the section on “ASSEMBLING

AND DISASSEMBLING THE DEPRESSED CENTER

WHEEL”

Ensure that blotters are used when they are provided

with the bonded abrasive product and when they

are required.

Do not use separate reducing bushings or adaptors

to adapt large hole abrasive wheels.

For tools intended to be fitted with threaded hole

wheel, ensure that the thread in the wheel is long

enough to accept the spindle length.

Do not use cutting off wheel for side grinding.

5. Conducting a trial run

Ensure that the abrasive products is correctly

mounted and tightened before use and run the tool

at no-load for 30 seconds in a safe position, stop

immediately if there is considerable vibration or if

other defects are detected.

If this condition occurs, check the machine to

determine the cause.

6. Confirm the push button.

Confirm that the push button is disengaged by

pushing push button two or three times before

switching the power tool on (See Fig. 6).

7. Fixing the side handle.

Screw the side handle into the gear cover.

PRACTICAL GRINDER APPLICATION

1. Pressure

To prolong the life of the machine and ensure a

first class finish, it is important that the machine

should not be overloaded by applying too much

pressure. In most applications, the weight of the

machine alone is sufficient for effective grinding.

Too much pressure will result in reduced rotational

speed, inferior surface finish, and overloading which

could reduce the life of the machine.

2. Grinding angle

Do not apply the entire surface of the depressed

center wheel to the material to be ground. As

shown in Fig. 5, 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.

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. 5 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.

NOTE:

⅜ To prevent injuries, this product has a function that

prevents unexpected motor rotation when the battery

is inserted. The motor will not run if the battery

is inserter while the switch is still ON. After installing

the battery, turn the switch off and then back on

again.

⅜ The G14DSL model is equipped with a protection

function that will shut down the tool in the event

of an overload.

Should the tool shut down due to an overload, turn

the power off and then turn it back on again.

CAUTIONS

⅜ Check that the work piece is properly supported.

⅜ 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.

⅜ Ensure that sparks resulting from use do not create

a hazard e.g. do not hit persons, or ignite flammable

substances.

⅜ 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.

⅜ When the machine is not use, the battery should

be disconnected.

5. About Remaining Battery Indicator

When pressing the remaining battery indicator

switch, the remaining battery indicator lamp lights

and the battery remaining power can be checked.

(Fig. 7) When releasing your finger from the

remaining battery indicator switch, the remaining

battery indicator lamp goes off. The table 4 shows

the state of remaining battery indicator lamp and

the battery remaining power.

As the remaining battery indicator shows somewhat

differently depending on ambient temperature and

battery characteristics, read it as a reference.

NOTE:

⅜ Do not give a strong shock to the switch panel or

break it.It may lead to a trouble.

⅜ To save the battery power consumption, the

remaining battery indicator lamp lights while

pressing the remaining battery indicator switch.

State of lamp Battery Remaining Power

The battery remaining power

is enough.

The battery remaining power

is a half.

The battery remaining power

is nearly empty.

Re-charge the battery soonest

possible.

Table 4

01Eng_G18DSL_WE 08/3/27, 10:5311

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Hitachi G18DSLS Manual

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