Manual Hitachi VB13Y (page 10 of 42) (English, German, Dutch, French, Italian, Portuguese, Spanish)

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3. Bending by eye measurement.

Since the unit uses a variable-speed switch, you can

bend the rebar to your desired angle by eye

measurement in addition to the dial setting.

(1) Set the setting dial to a larger angle than you desire.

(2) Pull the switch trigger lightly and bend the rebar

slowly.

(3) When the rebar is bent to the desired angle, stop

pulling the switch. If the bar is still small of the

desired angle, pull the switch again.

(4) Remove the rebar after bending has been finished.

Then, pull the switch once more and return the

bending roller to the home position. (Continue pulling

the switch until the bending roller begins reverse

rotation.)

4. Removing rebar during bending operation

When bending out at a low speed in “bending by eye

measurement”, the rebar can sometimes get caught

in the bending roller due to its own flexure.

If this occurs, you can return the bending roller to the

home position by pulling the switch again after setting

the setting dial to the “return” position. This is the

same method used to remove the rebar when it gets

caught during cutting operation. (Fig. 11).

5. Use of bending angle measuring plate.

In the unit, the cam cover itself is strucured as an

angle measuring plate that lets you measure the

angle of the rebar after bending. Take advantage of

this convenience. When viewed from the top as shown

in Fig. 12, the point where the marked line and the

rebar meet shows the bending angle. (Remember: A

different line must be used depending on the bar

diameter.)

6. Using hole to fix unit in place.

A hole is provided at the center of the unit to fix and

stabilize it. This hole comes in quite handy when

used in the following manner. (Fig. 13.)

⅜ For bending operation when the unit is fixed to a

work bench.

This hole will prove very convenient when the unit is

bolted to a suitable work bench. (Bolt size M10, less

than W3/8.)

MAINTENANCE AND INSPECTION

WARNING!

To prevent accidents, always be sure to turn the switch

OFF and unplug the power cord from the receptacle.

1. 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.

2. 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.

3. Inspecting the carbon brushes (Fig. 14)

The motor employs carbon brushes which are

consumable parts. Since an excessively worn carbon

brush can result in motor trouble, replace the carbon

brushes with new ones which have the same carbon

brush No. shown in the figure when they become

worn to or near the “wear limit”. In addition, always

keep carbon brushes clean and ensure that they slide

freely within the brush holders.

4. Replacing carbon brushes. (Fig. 13, Fig. 14)

Loosen the set screws and remove the tail cover.

Remove the brush caps and carbon brushes. After

replacing the carbon brushes, do not forget to tighten

the brush caps securely and to mount the tail cover

with set screws.

NOTE

Due to HITACHI’s continuing program of research and

development, the specifications herein are subject to

change without prior notice.

IMPORTANT

Correct connection of the plug

The wires of the main lead are coloured in accordance

with the following code:

Blue: -Neutral

Brown: -Live

As the colours of the wires in the main lead of this tool

may not correspond with the coloured markings

identifying the terminals in your plug proceed as follows:

The wire coloured blue must be connected to the terminal

marked with the letter N or coloured black. The wire

coloured brown must be connected to the terminal

marked with the letter L or coloured red. Neither core

must be connected to the earth terminal.

NOTE

This requirement is provided according to BRITISH

STANDARD 2769: 1984.

Therefore, the letter code and colour code may not

be applicable to other markets except The United

Kingdom.

Information concerning airborne noise and vibration

The measured values were determined according to

EN610029.

The typical A-weighted sound pressure level: 72 dB (A).

Wear ear protection.

The typical weighted root mean square acceleration

value does not exceed 2.5 m/s

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Hitachi VB13Y Manual

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