HIKOKI G 10ST Manual Petunjuk Penanganan - Halaman 14

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4. The provided depressed center wheel (resinoid

wheel) is rated as Class A grain and #36 grain size.

Accordingly, its range of applications cover a wide

variety, proving to be most suitable for heavy

grinding of general steel materials. Since the wheel

grain size is rather coarse, creating a fine-surfaced

finish is very difficult.

In this instance, hold the grinder lightly as through

trying to lift it, and apply grinding slowly at a

constant low speed. Whereby a fine finish similar

to that accomplished with a fine-grain depressed

center wheel is obtainable.

5. Switching on the grinder

The switch can be turned ON by turning its lever

-mark side, or turn OFF by turning its lever to the

O-mark side.

6. Precaution after use

Do not lay the grinder down immediately after use

in a place where there are many shavings and much

dirt and dust until it has completely stopped

revolving.

CAUTIONS:

Shock to the main body can be the cause of cracks

or splits in the depressed center wheel. Be espe-

cially careful to avoid sudden shocks when using

the equipment.

If the main unit is accidentally bumped or dropped,

make a careful check for cracks or splits on the

depressed center wheel before further use.

Do not press the lock pin when the equipment is

turning. Also, do not turn on the switch when the

lock pin is pressed down.

ASSEMBLING AND DISASSEMBLING

THE DEPRESSED CENTER WHEEL (Fig. 2)

CAUTION:

Be sure to switch power OFF and disconnect the

attachment plug from the power receptacle to avoid

serious trouble.

(1) Turn the equipment upsidedown so that the spindle

will be facing up.

(2) Mount the wheel washer onto the spindle.

(3) Mount the protuberance of the depressed center

wheel onto the wheel washer.

(4) Mount the convex side of the wheel nut onto the

depressed center wheel, and screw the wheel nut

onto the spindle.

(5) As shown in Fig. 2 push in the lock pin to prevent

rotation of the spindle. Then, secure the depressed

center wheel by tightening the wheel nut with the

wrench.

CAUTION: Confirm that the depressed center wheel

is mounted firmly.

Confirm that the lock pin is disengaged by

pushing lock pin two or three times before

switching the power tool on.

Disassembling of the depressed center wheel is the

reverse of assembling.

HOW TO INSTALL THE OPTIONAL

ACCESSORIES

CAUTIONS:

Be sure to switch power OFF and disconnect the

plug from the power receptacle to avoid serious

trouble. When utilizing the optional accessories,

keep the wheel guard attached and wear protective

glasses.

Do not use the optional accessories which exceed

the designated external diameter designated in the

paragraph.

1. Mounting the 100mm Sanding Disc. (see Fig. 3)

NOTE:

Do not use the wheel washer and wheel nut of the

depressed center wheel.

(1) Mount the washer, rubber pad and sanding disc

onto the spindle.

(2) Screw from the washer nut onto the spindle.

(3) As shown in Fig. 3, push in the lock pin to prevent

rotation of the spindle. Then, secure the sanding

disc by tightening the wheel nut with the wrench.

MAINTENANCE AND INSPECTION

1. Inspecting the depressed center wheel

Ensure that the depressed center wheel is free of

cracks and surface defects.

Replace the depressed center wheel when it has

been worn out to about 60mm in external diameter.

2. Inspecting the mounting screws:

Regularly inspect all mounting screws and ensure

that they are properly tightened. Should any of the

screws be loose, retighten them immediately. Fail-

ure to do so could result in serious hazard.

3. Maintenance of the motor

The motor unit winding is the very "heart" of the

power tool. Exercise due care to ensure the winding

does not become damaged and/or wet with oil or

water.

4. Inspecting the carbon brushes (Fig. 4)

The motor employs carbon brushes which are

consumable parts. Since an excessively worn car-

bon brush can result in motor trouble, replace the

carbon brush with a new one having the same

carbon brush No. shown in the figure when it

becomes worn to or near the "wear limit". In

addition, always keep carbon brushes clean and

ensure that they slide freely within the brush holders.

5. Replacing carbon brushes:

Disassemble the brush caps with a slotted-head

screwdriver. The carbon brushes can then be easily

removed.

6. If the supply cord of this tool damaged, it must be

replaced by a specially prepared cord available

through the service organization.