Manual Hitachi SG23UA2 (page 10 of 72) (English, German, Dutch, French, Italian, Portuguese, Spanish)

567048

Zoom out

Zoom in

1/72

English

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.

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. Switch operation

Switch ON: Push the locking button forward and

then press the switch lever.

* For continuous use, press the switch

lever. The switch lever is locked by

pushing the locking button forward

once again.

(*Subject to change depending on

area.)

Switch OFF: Press and release the switch lever.

5. Precautions immediately after finishing operation

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.

CAUTION

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 protective safety glasses and hearing

protectors, use other personal protective equipment

such as gloves, apron and helmet when necessary.

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 power source

should be disconnected.

ASSEMBLING AND DISASSEMBLING THE

DEPRESSED CENTER WHEEL

CAUTION Be sure to switch OFF and disconnect the

attachment plug from the receptacle to avoid

a serious accident.

1. Assembling (Fig. 1)

(1) Turn the machine upside down so that the spindle

is facing upward.

(2) Mount the wheel washer onto the spindle.

(3) Fit the protruding part of the depressed center

wheel onto the wheel washer.

(4) Screw the wheel nut onto the spindle.

(5) Insert the push button to prevent rotation of the

spindle, and tighten the wheel nut with the accessory

wrench, as shown in Fig. 1.

2. Disassembling

Follow the above procedures in reverse.

CAUTION

⅜ Comfirm that the depressed center wheel is mounted

firmly.

⅜ Confirm that the push button is disengaged by

pushing push button two or three times before

switching the power tool on.

MAINTENANCE AND INSPECTION

1. Inspecting the depressed center wheel

Ensure that the depressed center wheel is free of

cracks and surface defects.

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. Failure

to do so could result in serious hazard.

3. Inspecting the carbon brushes (Fig. 4)

The motor employs carbon brushes which are

consumable parts.

When they become worn to or near the “wear

limit”, it could result in motor trouble. When an

auto-stop carbon brush is equipped, the motor will

stop automatically.

At that time, replace both carbon brushes with new

ones which have the same carbon brush numbers

shown in the figure. In addition, always keep carbon

brushes clean and ensure that they slide freely

within the brush holders.

4. Replacing carbon brushes (Fig. 5)

(1) Loosen the D4 tapping screw retaining the brush

cover and remove the brush cover.

(2) Use the auxiliary hexagonal wrench or small

screwdriver to pull up the edge of the spring that

is holding down the carbon brush. Remove the

edge of the spring toward the outside of the brush

holder.

(3) Remove the end of the pig-tail on the carbon brush

from the terminal section of brush holder and then

remove the carbon brush form the brush holder.

(1) Insert the end of the pig-tail of the carbon brush

in the terminal section of brush holder.

(2) Insert the carbon brush in the brush holder.

(3) Use the auxiliary hexagonal wrench or small

screwdriver to return the edge of the spring to the

head of the carbon brush.

(4) Mount the tail cover and tighten the D4 tapping

screw.

5. 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.

6. Service parts list

A: Item No.

B: Code No.

C: No. Used

D: Remarks

01Eng_G18SE3_WE 4/21/10, 17:249

Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

Forumrules

To achieve meaningful questions, we apply the following rules:

First, read the manual;
Check if your question has been asked previously;
Try to ask your question as clearly as possible;
Did you already try to solve the problem? Please mention this;
Is your problem solved by a visitor then let him/her know in this forum;
To give a response to a question or answer, do not use this form but click on the button 'reply to this question';
Your question will be posted here and emailed to our subscribers. Therefore, avoid filling in personal details.

new questions and answers
new manuals

You will receive an email to register for one or both of the options.

Get your user manual by e-mail

Enter your email address to receive the manual of Hitachi SG23UA2 in the language / languages: English, German, Dutch, French, Italian, Portuguese, Spanish as an attachment in your email.

The manual is 2,04 mb in size.

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.

Info

Hitachi SG23UA2 Manual

Product: