Hitachi VB 16Y Safety Instructions And Instruction Manual

DOUBLE INSULATION

DOUBLE ISOLATION

AISLAMIENTO DOBLE

MODEL REBAR CUTTER/BENDER

MODÈLE

CISAILLE/CINTREUSE POUR BARRES BÉTON

MODELO CORTADORA DOBLADORA DE VARILLA

VB 16Y

SAFETY INSTRUCTIONS AND INSTRUCTION MANUAL

WARNING

IMPROPER OR UNSAFE use of this power tool can result in death or serious bodily

injury!

This manual contains important information about product safety. Please read

and understand this manual BEFORE operating the power tool. Please keep this

manual available for other users and owners before they use the power tool.

This manual should be stored in safe place.

INSTRUCTIONS DE SECURITE ET MODE D’EMPLOI

AVERTISSEMENT

Une utilisation INCORRECTE OU DANGEREUSE de cet outil motorisé peut entraîner

la mort ou de sérieuses blessures corporelles!

Ce mode d’emploi contient d’importantes informations à propos de la sécurité de

ce produit. Prière de lire et de comprendre ce mode d’emploi AVANT d’utiliser

l’outil motorisé. Garder ce mode d’emploi à la disponibilité des autres utilisateurs

et propriétaires avant qu’ils utilisent l’outil motorisé. Ce mode d’emploi doit être

conservé dans un endroit sûr.

INSTRUCCIONES DE SEGURIDAD Y MANUAL DE INSTRUCCIONES

ADVERTENCIA

¡La utilización INAPROPIADA O PELIGROSA de esta herramienta eléctrica puede

resultar en lesiones de gravedad o la muerte!

Este manual contiene información importante sobre la seguridad del producto.

Lea y comprenda este manual ANTES de utilizar la herramienta eléctrica. Guarde

este manual para que puedan leerlo otras personas antes de utilizar la herramienta

eléctrica. Este manual debe ser guardado en un lugar seguro.

CONTENTS

Page

IMPORTANT INFORMATION ..................... 3

MEANINGS OF SIGNAL WORDS............... 3

SAFETY ............................................................ 4

INPORTANT SAFETY INSTRUCTIONS

FOR USING POWER TOOLS ................. 4

SPECIFIC SAFETY RULES AND SYMBOLS ...

6

REPLACEMENT PARTS .............................. 7

USE PROPER EXTENSION CORD .............. 8

DOUBLE INSULATION FOR SAFER

OPERATION............................................ 9

FUNCTIONAL DESCRIPTION ....................... 10

NAME OF PARTS .......................................... 10

SPECIFICATIONS .......................................... 11

Page

ASSEMBLY AND OPERATION ..................... 12

APPLICATIONS ......................................... 12

PRIOR TO OPERATION ............................. 12

PICTGRAPH ILLUSTRATION AND

EXPLANATION ..................................... 13

HOW TO USE (CUTTING) ......................... 15

SERVICE LIFE AND REPLACEMENT

OF THE CUTTER................................... 16

HOW TO USE (BENDING) ........................ 17

MAINTENANCE AND INSPECTION ............. 21

ACCESSORIES .............................................. 22

STANDARD ACCESSORIES ..................... 22

OPTIONAL ACCESSORIES ....................... 22

TABLE DES MATIERES

Page

INFORMATIONS IMPORTANTES ............ 23

SIGNIFICATION DES MOTS

D’AVERTISSEMENT .............................23

SECURITE ...................................................... 24

CONSIGNES DE SÉCURIT´E RELATIVES

AUX OUTILS ÉLECTRIQUES ............... 24

REGLES DE SECURITE SPECIFIQUES ET SYMBOLES

.26

PIECES DE RECHANGE ............................ 27

UTILISER LE CORDON DE RALLONGE APPROPRIÉ .

28

DOUBLE ISOLATION POUR UN

FONCTIONNEMENT PLUS SUR ......... 29

DESCRIPTION FONCTIONNELLE................. 30

NOM DES PARTIES................................... 30

SPECIFICATIONS ...................................... 31

Page

ASSEMBLAGE ET FONCTIONNEMENT ...... 32

APPLICATIONS ......................................... 32

AVANT L’UTILISATION ............................ 32

SCHÉMA ET EXPLICATION ...................... 33

UTILISATION (COUPE) ............................. 35

DURÉE DE SERVICE ET REMPLACEMENT

DU COUTEAU ...................................... 36

UTILISATION (CINTRAGE) ....................... 37

ENTRETIEN ET INSPECTION ....................... 42

ACCESSOIRES .............................................. 43

ACCESSOIRES STANDARD ..................... 43

ACCESSOIRES SUR OPTION ................... 43

ÍNDICE

Página

INFORMACIÓN IMPORTANTE ................. 44

SIGNIFICADO DE LAS PALABRAS DE

SEÑALIZACIÓN .................................... 44

SEGURIDAD .................................................. 45

NORMAS DE SEGURIDAD PARA LAS

HERRAMIENTAS ELÉCTRICAS .............

45

NORMAS Y SÍMBOLOS ESPECÍFICOS DE SEGURIDAD

... 47

PIEZAS DE REEMPLAZO .......................... 48

UTILICE EL CABLE PROLONGADOR ADECUADO ........

49

AISLAMIENTO DOBLE PARA OFRECER

UNA OPERACIÓN MÁS SEGURA ....... 50

DESCRIPCIÓN FUNCTIONAL ....................... 51

NOMENCLATURA ..................................... 51

ESPECIFICACIONES .................................. 52

Página

MONTAJE Y OPERACIÓN ............................ 53

APLICACIONES ......................................... 53

ANTES DE LA OPERACIÓN ...................... 53

ILUSTRACION PICTRORICA Y

EXPLICACION ....................................... 54

NOTAS SOBRE EL USO (CORTADORA) . 56

VIDA DE SERVICIO Y REEMPLAZO DE LA

CORTADORA ........................................ 57

NOTAS SOBRE EL USO (CURVADORA) . 58

MANTENIMIENTO E INSPECCIÓN .............. 63

ACCESORIOS ................................................ 64

ACCESORIOS ESTÁNDAR ....................... 64

ACCESORIOS OPCIONALES .................... 64

English

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English

3

IMPORTANT INFORMATION

Read and understand all of the operating instructions, safety precautions and warnings in

the Instruction Manual before operating or maintaining this power tool.

Most accidents that result from power tool operation and maintenance are caused by the

failure to observe basic safety rules or precautions. An accident can often be avoided by

recognizing a potentially hazardous situation before it occurs, and by observing appropriate

safety procedures.

Basic safety precautions are outlined in the “SAFETY” section of this Instruction Manual and

in the sections which contain the operation and maintenance instructions.

Hazards that must be avoided to prevent bodily injury or machine damage are identified by

WARNINGS on the power tool and in this Instruction Manual.

Never use this power tool in a manner that has not been specifically recommended by

HITACHI, unless you first confirm that the planned use will be safe for you and others.

MEANINGS OF SIGNAL WORDS

WARNING indicates a potentially hazardous situation which, if ignored, could result in

serious personal injury.

CAUTION indicates a hazardous situation which, if ignored, could result in moderate

personal injury, or could cause machine damage.

NOTE emphasizes essential information.

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SAFETY

INPORTANT SAFETY INSTRUCTIONS FOR USING ALL POWER TOOLS

READ ALL OF THE WARNINGS AND OPERATING INSTRUCTIONS IN THIS MANUAL

BEFORE OPERATING OR MAINTAINING THIS TOOL:

WARNING: When using this electric tool, take all necessary precautions to minimize

the risk of electric shock or other personal injury.

In particular, always comply with the following safety rules:

1. ALWAYS KEEP GUARDS IN PLACE and in working order.

2. ALWAYS REMOVE ADJUSTING KEYS AND WRENCHES BEFORE STARTING TOOL.

Always confirm that all keys and adjusting wrenches have been removed from the tool

before it is turned on.

3. ALWAYS KEEP WORK AREA CLEAN. Avoid injuries by not cluttering the work areas and

work benches.

4. NEVER USE TOOL IN HAZARDOUS ENVIRONMENTS. Never use the power tool in damp

or wet places and never expose it to rain. Always keep the work area well lighted.

5. NEVER PERMIT CHILDREN OR OTHERS TO LOITER NEAR THE WORK AREA. Keep all

people (especially children) away from the work area. Always unplug unattended tools

and keep the work place tamper-proof by installing locks on the doors and on the master

switches. Always remove the lock-off button from the tool and store it in a secure place,

when the tool is not in use.

6. NEVER FORCE THE TOOL. It will do the job better and more safely if it is operated at the

rate for which it was designed.

7. ALWAYS USE THE RIGHT TOOLS. Never force a tool or an attachment to do a job for

which it was not designed.

8. ALWAYS WEAR PROPER APPAREL WHEN WORKING WITH THE TOOL. Never wear

loose clothing, gloves, neckties, rings, bracelets or other jewelry which may get caught

in the moving parts. Always wear non-slip footwear, preferably with steel toes. Wear

protective hair covering to contain long hair.

9. ALWAYS USE EYE PROTECTION WHEN WORKING WITH THE TOOL TO PREVENT EYE

INJURY. Ordinary eyeglasses do not provide adequate protection because the lenses are

not made of safety glass. Also, use a face mask for additional safety and wear a dust mask

if the cutting/bending operation produces dust.

10. ALWAYS SECURE THE WORKPIECE TO THE FENCE OR THE TABLE. Use clamps or a vise

to hold the workpiece in place. It is safer than using your hand and it frees both hands to

operate the tool.

11. NEVER OVERREACH. Always keep proper footing and balance when working with the

tool.

12. ALWAYS MAINTAIN TOOLS WITH CARE. Always keep tools sharp and clean for the best

and safest performance. Always follow instructions for lubricating the tool and for

changing accessories.receptacle.

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13. ALWAYS DISCONNECT THE TOOL before servicing and before changing blades or other

accessories.

14. NEVER RISK UNINTENTIONAL STARTING WHEN PLUGGING IN THE TOOL. Always

confirm that the switch is in the OFF position before inserting the power plug into the

15. ALWAYS USE RECOMMENDED ACCESSORIES ONLY WHEN OPERATING THIS TOOL.

Consult this instruction manual for descriptions of recommended accessories. To avoid

personal injuries, use only recommended accessories in conjunction with this tool.

16. NEVER STAND ON THE TOOL. Prevent serious injury by not tipping the tool and by not

risking unintentional contact with the cutter.

17. ALWAYS CHECK FOR DAMAGED PARTS BEFORE USING THE TOOL. Always check the

guard and all other components for damage before using the tool to assure that they will

function properly. Check all moving parts for proper alignment, freedom from binding

and other conditions that might affect proper operation. Always repair or replace any

damaged guards or other damaged components before using the tool.

18. ALWAYS CONFIRM THE ROTATION DIRECTION OF THE BLADE BEFORE USING THE

TOOL. Always feed work into the tool against the moving direction of the cutter in order

to prevent possible injury.

19. NEVER LEAVE THE TOOL RUNNING WHILE UNATTENDED. TURN POWER OFF. Do not

leave tool until it comes to a complete stop. Always turn the power off when the tool is

not in use. Always unplug the power cord when the tool is not in use.

20. This tool was not designed to be used for mass-production applications and should not

be used in mass-production environments.

21. When servicing this tool, use only authorized replacement parts.

22. Apply 120 volts AC only to this tool. Applying the wrong voltage or applying DC power

can cause the POWER TOOL to operate improperly and cause serious personal injury or

damage to the tool.

23. POLARIZED PLUGS To reduce the risk of electric shock, this equipment has a polarized

plug (one blade is wider than the other). This plug will fit in a polarized outlet only one

way. If the plug does not fit fully in the outlet, reverse the plug. If it still does not fit, contact

a qualified electrician to install the proper outlet. Do not change the plug in any way.

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SPECIFIC SAFETY RULES AND SYMBOLS

WARNING: For Your Own Safety Read Instructon Manual Before Operating Tool.

Wear Eye Protection.

Risk of injury due to accidental starting.

Do not use in a home workshop or other work area where children may

be present.

1. Hold tools by insulated gripping surfaces when performing an operation where the tool

may contact hidden wiring or its own cord. Contact with a “live” wire will make exposed

metal parts of the tool “live” and shock the operator.

2. Wear ear plugs when using the tool for extended periods. Prolonged exposure to high

intensity noise can cause hearing loss.

3. Never touch moving parts.

Never place your hands, fingers or other body parts near the tool’s moving parts.

4. Never use a power tool for applications other than those specified.

Never use a power tool for applications other than those specified in the Instruction

Manual.

5. Handle tool correctly.

Operate the tool according to the instructions provided herein. Do not drop or throw the

tool. Never allow the tool to be operated by children, individuals unfamiliar with its

operation or unauthorized personnel.

6. Keep all screws, bolts and covers tightly in place.

Keep all screws, bolts, and plates tightly mounted. Check their condition periodically.

7. Do not use power tools if the plastic housing or handle is cracked.

Cracks in the tool’s housing or handle can lead to electric shock. Such tools should not

be used until repaired.

8. Cutters and accessories must be securely mounted to the tool.

Prevent potential injuries to youself or others. Cutters, cutting implements and accessories

which have been mounted to the tool should be secure and tight.

9. Keep motor air vent clean.

The tool’s motor air vent must be kept clean so that air can freely flow at all times. Check

for dust build-up frequently.

10. Operate power tools at the rated voltage.

Operate the power tool at voltages specified on its nameplate.

If using the power tool at a higher voltage than the rated voltage, it will result in

abnormally fast motor revolution and may damage the unit and the motor may burn out.

11. Never use a tool which is defective or operating abnormally.

If the tool appears to be operating unusually, making strange noises, or otherwise

appears defective, stop using it immediately and arrange for repairs by a Hitachi

authorized service center.

12. Never leave tool running unattended. Turn power off.

Don’t leave tool until it comes to a complete stop.

13. Carefully handle power tools.

Should a power tool be dropped or struck against hard materials inadvertently, it may be

deformed, cracked, or damaged.

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14. Do not wipe plastic parts with solvent.

Solvents such as gasoline, thinner benzine, carbon tetrachloride, and alcohol may

damage and crack plastic parts. Do not wipe them with such solvents.

Wipe plastic parts with a soft cloth lightly dampened with soapy water and dry

thoroughly.

15. Definitions for symbols used on this tool

V ............. volts

Hz ........... hertz

A ............. amperes

no .......... no load speed

W ............ watt

............ Class II Construction

---/min .... revolutions per minute

REPLACEMENT PARTS

When servicing use only identical replacement parts.

Repairs should be conducted only by a Hitachi authorized service center.

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USE PROPER EXTENSION CORD

Make sure your extension cord is in good condition. When using an extension cord, be sure

to use one heavy enough to carry the current your product will draw.

An undersized cord will cause a drop in line voltage resulting in loss of power and

overheating. Table shows the correct size to use depending on cord length and nameplate

ampere rating. If in doubt, use the next heavier gage. The smaller the gage number, the

heavier the cord.

MINIMUM GAGE FOR CORD SETS

Total Length of Cord in Feet (Meter)

0 – 25 26 – 50 51 – 100 101 – 150

(0 – 7.6) (7.9 – 15.2) (15.5 – 30.5) (30.8 – 45.7)

Ampere Rating AWG

More Not More

Than Than

0 – 618161614

6 – 10 18 16 14 12

10 – 12 16 16 14 12

12 – 16 14 12 Not Recommended

WARNING: Avoid electrical shock hazard. Never use this tool with a damaged or

frayed electrical cord or extension cord.

Inspect all electrical cords regularly. Never use in or near water or in any

environment where electric shock is possible.

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DOUBLE INSULATION FOR SAFER OPERATION

To ensure safer operation of this power tool, HITACHI has adopted a double insulation

design. “Double insulation “ means that two physically separated insulation systems have

been used to insulate the electrically conductive materials connected to the power supply

from the outer frame handled by the operator. Therefore, either the symbol “ ” or the words

“Double insulation” appear on the power tool or on the nameplate.

Although this system has no external grounding, you must still follow the normal electrical

safety precautions given in this Instruction Manual, including not using the power tool in wet

environments.

To keep the double insulation system effective, follow these precautions:

䡬 Only HITACHI AUTHORIZED SERVICE CENTER should disassemble or assemble this

power tool, and only genuine HITACHI replacement parts should be installed.

䡬 Clean the exterior of the power tool only with a soft cloth moistened with soapy water,

and dry thoroughly.

Never use solvents, gasoline or thinners on plastic components; otherwise the plastic

may dissolve.

SAVE THESE INSTRUCTIONS

AND

MAKE THEM AVAILABLE TO

OTHER USERS OF THIS TOOL!

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Grip rubber

FUNCTIONAL DESCRIPTION

NOTE:

The information contained in this Instruction Manual is designed to assist you in the safe

operation and maintenance of the power tool.

Some illustrations in this Instruction Manual may show details or attachments that differ

from those on your own power tool.

NAME OF PARTS

Fig. 1

Fig. 2

Lever

Switch trigger

Bending roller

Cutter guard

Upper cutter

Lower cutter

Set screws

Guide

Cam cover

Grip rubber

Allen key

Cam cover

Turn table

Center roller

Hexagon socket bolt

Tail cover

Handle

Center plate

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SPECIFICATIONS

Motor Single-Phase, Series Commutator Motor

Power Source Single-Phase, 120 V AC 60 Hz

Current 8 A

Capacities (1) Material: Concrete reinforcing bars only

(for ASTM)

GRADE 40, GRADE 60

(2) Bar Designation Size

#3, #4, #5 (3/8", 1/2", 5/8")

Cutting Bending

#3 (3/8")..... 2 pieces #3 (3/8") .... 3 pieces

Number of piece(s) that

#4 (1/2")..... 1 piece #4 (1/2") .... 2 pieces

can be processed at one time

#5 (5/8")..... 1 piece #5 (5/8") .... 1 piece

No-Load Speed 0 – 16/min.

Weight (without cord) 39.7 lbs (18.0 kg)

Fig. 3 Fig. 4

When installing the deflection When folding the deflection

guard guard

Arm

Guard

Base

Guard

Arm

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ASSEMBLY AND OPERATION

APPLICATIONS

䡬 Cutting of rebar

䡬 Bending of rebar

PRIOR TO OPERATION

1. Power source

Ensure that the power source to be utilized conforms to the power source requirements

specified on the product nameplate.

2. Power switch

Ensure that the switch is in the OFF position. If the plug is connected to a receptacle while

the switch is in the ON position, the power tool will start operating immediately and can

cause serious injury.

3. Extension cord

When the work area is far away from the power source, use an extension cord of sufficient

thickness and rated capacity. The extension cord should be kept as short as practicable.

WARNING: Damaged cord must be replaced or repaired.

4. Check the receptacle

If the receptacle only loosely accepts the plug, the receptacle must be repaired. Contact

a licensed electrician to make appropriate repairs.

If such a fautly receptacle is used, it may cause overheating, resulting in a serious hazard.

5. Confirming condition of the environment:

Confirm that the work site is placed under appropriate conditions conforming to

prescribed precautions.

6. For safety sake, use the provided Allen key to make absolutely sure that the hexagon

socket bolt is securely clamped. Use of the unit with the bolt in a loosely clamped

condition can result in damage to the unit and cutter as well as accidents.

7. Confirm that the cutter is in sharp condition.

Make certain that the cutter is in a sharp condition. Continued use of a worn out and

deformed cutter with dull edges results in damage to the unit and cutter as well as

accidents.

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PICTGRAPH ILLUSTRATION AND EXPLANATION

Read handling

instructions before

use.

Avoid any work exceeding the

maximum capacities.

(Rebar diameter: #5 (5/8"))

Do not this electric

power tools in wet

wether conditions.

Begin operation only after

ensuring that there are no

people within the turning

range of the material to

be bent.

Never bring your

hand close to the

cutter during

operation.

If the switch is turned off and then

immediately turned on again, the

motor may not start. Wait for at least

one full second before attempting to

turn the motor on again after it has

been switched off.

(Returning Halfway)

1 Select RETURN with the dial.

2 Pull the triger.

(Selecting the rebar size)

Select the rebar size and

the bending angle.

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● The cutter blade can get worn out by repeated rebar

cutting. Continued use of a worn-out cutter can

result in the damage and the broken pieces flying

around. Replace it with a new cutter after no more

than 5,000 times of cutting.

● The machine is so designed that the upper cutter

and the grip rubber can support a rebar.

If the grip rubber gets worn out, there is a fear that

it cannot sufficiently hold the rebar and gets broken

down with its parts flying around, etc.

If the grip rubber cannot hold the rebar much longer,

replace it with a new grip rubber. Also replace the

worn grip rubber with new one when replacing the

cutter.

● During cutting work, securely hook the rebar to the

reaction stopper B. Furthermore, secure enough

length of a rebar to be hooked to the reaction

stopper B.

● Avoid bringing your hand near to the reaction

stopper B during operation. If you do so, you may

get your finger caught in or may run the hazard of

other injuries.

● Set the rebar in the center or the recess of the cutter

during cutting work. Any cutting work with the

rebar set on corners or ends of the cutter can result

in the pieces of broken rebar flying around or the

damage to the cutter and the machine.

● If you bend the rebar with a large angle while placing

your hand onto it, there is a fear of getting your

hand caught in by the fold-back reaction of the rebar.

Never place your hand onto the position where the

rebar may fold back.

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HOW TO USE (CUTTING)

1. Normal cutting (Fig. 5)

(1) Turn the lever in the direction of the arrow mark

and open the cover.

(2) Set the setting dial at the “cut” position. (Turn

the setting dial all the way clockwise.) (Fig. 6)

(3) Set the unit in the position shown in Fig. 5.

(4) Set the rebar to be cut on the lower cutter.

(5) When the rebar is set, make sure that the reaction

stopper B is hooked to the rebar.

(6) Pull the switch trigger and cut the rebar.

WARNING:

䡬 While turning switches, never put your hand close

to the cutter, reaction stopper, or bending roller.

䡬 Bringing your hand close to these components can

result in serious injury.

䡬 Do not cut any rebar exceeding the maximum

capacities of the unit described in the specifications.

䡬 Never cut any hard materials such as PC(Precast

concrete) steel. Materials of this type are likely to

scatter into pieces and cause injuries.

䡬 The rebar you are cutting may have a hard spot in

it. Quality may vary within each rebar. Do not

attempt to cut NON-GRADE rebar.

䡬 Replace the worn grip rubber with new one when

replacing the cutter.

䡬 Note that the unit is not a hand held tool. Be absolutely sure to use the unit only after

placing it on stable spots such as floor, ground, etc.

CAUTION:

Even after the cutting has been completed, continue pulling the switch trigger until the

motor starts to run in the reverse direction and the cutter starts to return. If the switch

trigger is released too early, the cutter will not return and the trigger will have to be

pulled again.

2. Removing the rebar during cutting operation.

(Fig. 7)

If the switch trigger is released in the middle of

cutting, the cutter can come to a stop at a halfway

position, jumming the rebar in the unit.

When this occurs, you can either pull the switch

trigger again and cut off the rebar, or you can free

the rebar by bringing the upper cutter back up to

the home position by carrying out the following

procedure. (Fig. 7)

Fig. 5

Fig. 6

Reaction stopper B

Rebar

Bending

roller

Setting

dial

Adjusting position

Fig. 7

0˚

RETURN

CUT

45˚

90˚

135˚

180˚

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䡬 Removing (Fig. 8)

Set the setting dial to the “RETURN” position as

shown in Fig. 8 and pull the switch trigger again.

SERVICE LIFE AND REPLACEMENT OF THE CUTTER

1. Service life of cutter (Fig. 9)

Repeated cutting of the rebar can result in the

"wear and tear", "deformation", "nicked edges",

etc. Using the cutter under such circumstances will

not only damage the machine but also there will be

a fear of the broken cutter fragments flying around.

Replace it with a new cutter after cutting no more

than 5,000 pieces of rebar.

2. Before removing the cutter

(1) Pull the switch lightly and let the upper cutter

move slowly. When the hexagon socket bolt

that fixes the upper cutter comes out of the cam

cover, turn the switch OFF and stop the motor.

(2) Unplug the power cord from the receptacle.

3. Removal

䡬 If you remove the hexagon socket bolt using the

provided Allen key, you can remove the cutter.

(Pushing the cutter guard up in the direction of

the arrow shown in Fig. 10, facilitates removal

of the upper cutter.)

䡬 Removal of the lower cutter can be easily made

if the lower cutter is wrenched with a Phillips

head screwdriver as shown in the following

diagram. (Fig. 11)

WARNING:

䡬 To prevent accidents, always be sure to turn the

switch OFF and unplug the power cord from the

receptacle.

䡬 If you remove the hexagon socket bolt using the

provided Allen key, you can remove the cutter.

(Pushing the cutter guard up in the direction of the

arrow shown in Fig. 10, facilitates removal of the

upper cutter.)

Fig. 10

Cutter

guard

Upper

cutter

Lower

cutter

Hexagon

socket

bolt

Fig. 9

Fig. 8

Fig. 11

0˚

RETURN

CUT

45˚

90

˚

135˚

180

˚

Blade

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4. Mounting

(1) Get rid of dust around the cutter installing section and clean it up.

(2) Align the hole of a new cutter and the position of a pin, and insert into the installing

section.

(3) Also replace the hexagon socket bolt (packed along with the cutter) with a new one

simultaneously, completely tighten it using the attached Allen key, and then fix the

cutter.

CAUTION:

䡬 Install the cutter and accessories securely according to the instruction manual. If you fail

to install them properly, they may come off and cause an injury.

䡬 Be sure to unplug the power cord from the receptacle when the cutter is checked,

cleaned, and replaced. Failure to do so can result in a serious injury.

HOW TO USE (BENDING)

1. Setting bending angles by setting dial.

The bar can be bent according to the angles indicated on the setting dial, as shown in Fig.

12.

In bending the rebar of #3(3/8"), #4(1/2"), and #5(5/

8") diameters, a difference takes place in the bending

angle even in the same dial position depending

upon the difference of rebar's thickness. Slightly

change a position of the setting dial depending

upon the rebar's diameter even with the same

bending angle as shown in Fig. 13.

NOTE

Even at the same dial setting position, the bending angle can sometimes differ if the diameter

or hardness of the rebar is different. Use the angle marks merely as a rough guideline.

Fig. 12

Condition of rebar

Dial indication 45° 90° 135° 180°

180°135°90°45°

Fig. 13

Adjusting position

Size of rebar Colors of indicated marks

#3(3/8") White

#4(1/2") Red

#5(5/8") Yellow

0˚

RETURN

CUT

45˚

90

˚

135˚

180˚

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18

2. Ordinary bending.

(1) Set the unit in the position with the turntable up

as shown in Fig. 14.

(2) Make sure that the cover is closed.

(3) Set the setting dial at the desired angle. (Fig. 13)

(4) Place the rebar on the center plate and set it

correctly as shown in Fig. 14.

(5) Pull the switch trigger and bent the rebar.

(6) Continue pulling the switch trigger untill the

motor makes reverse rotation and the bending

roller starts to return. (Once the bending roller

starts to return, it will automatically return all

the way to the home position even if the switch

trigger is released.)(Fig. 15)

WARNING:

䡬 Make absolutely sure that the cutter cover is closed

when you don’t carry out the cutting work. If the

cover is kept open, the cutter can jam on foreign

objects and cause serious accidents. (Fig. 16)

䡬 Never bring your hand close to the bending roller

during operation.

䡬 If you bend the rebar with a large angle while

placing your hand onto it, there is a fear of getting

your hand caught in by the fold-back reaction of

the rebar. Never place your hand onto the position

where the rebar may fold back.

䡬 Do not bend any rebar exceeding the maximum

capacities of the unit described in the specifications.

Never bend any hard materials such as PC(Precast

concrete) steel. Materials of this type are likely to

scatter into pieces and cause injuries.

䡬 The rebar you are bending may have a hard spot in

it. Quality may vary within each bar. Do not attempt

to bend NON-GRADE Rebar.

䡬 Never place your hand onto the bending side of the

rebar. If you do so, your hand may be caught in the

mechanical parts.

䡬 Install the deflection guard for operation with the bending length of a rebar 20" (inside

dimension of the deflection guard) or less to protect the persons around the rebar cutter/

bender in case rebar splinters into pieces and deflects during bending. (Fig. 20)

䡬 Remove the deflection guard when bending a rebar whose bending length and the fixed

length are more than 20" to prevent damage to the deflection guard.

䡬 Replace the deflection guard with new one if it is damaged. Damaged deflection guard

cannot protect the persons around the rebar cutter/bender in case a rebar splinters into

pieces and deflects during bending.

䡬 Note that the unit is not a hand-held tool. Be absolutely sure to use the unit only after

placing it on a stable spots such as floor, ground, etc.

Fig. 16

Cover

Fig. 15

Switch trigger

Fig. 14

Center plate

Cover

Bending length

8" (200 mm) or

more

Bending

roller

Lever

English

19

䡬 Begin operation only after marking sure that there

are no people within the turning range of the

material to be bent.

䡬 The minimum required bending length is 8" (200

mm).

If the bending length is not long enough, the rebar

can come off during bending operation, or it can

break into fragments and scatter dangerously.

(Fig. 14)

䡬 Be sure to set the rebar in the roller correctly. If it

protrudes from the roller, the rebar can come off

during bending operation and scatter into pieces.

䡬 Bend less than every 3 pieces of rebar with a #3(3/

8") diameter, less than every 2 pieces with a #4(1/

2") diameter, and every 1 piece with a #5(5/8")

diameter.

䡬 Remember that the cutter moves even during the

bending operation, thereby, close the cutter cover

without fail.

3. How to install deflection guard

The deflection guard is provided to protect the persons around the rebar cutter/bender

in case a rebar splinters into pieces and deflects during bending. Install the deflection

guard to the VB16Y for operation with the bending length of a rebar 20" (inside dimension

of the deflection guard) or less.

(1) Insert the base of the deflection guard into the slot of the rebar cutter/bender. (Fig. 17)

(2) Open the guard fully by pulling the arms as shown below until a click is heard. (Fig.

18)

4. How to remove deflection guard

䡬 Reverse the installation procedure to remove the deflection guard.

5. How to use deflection guard

(1) Be sure to install the deflection guard when bending a rebar whose bending length

and the fixed length are 20" (inside dimensin of deflection guard) or less (Fig. 19)

(2) Be sure to install the deflection guard when bending a rebar whose bending length

is 20" (inside dimensin of diflection guard) or less and the fixed length is more than

20". In this case, move the arm at the fixed end. (Fig. 20)

Fig. 18

Fig. 17

Slot for

base

insertion

Fig. 19 Fig. 20

Fixed

end

Bending

side

20"

Fixed

end

Bending

side

20" 20"

Arm

English

20

(3) Remove the deflection guard when bending a rebar whose bending length and the

fixed length are more than 20" (inside dimension of the deflection guard).

CAUTION:

䡬 Set a rebar on the rebar cutter/bender so that the bending length is equal to or shorter

than the fixed length.

6. 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.)

7. 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.

21)

8. 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. 22)

䡬 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.)

Fig. 21

Fig. 22

Bolt

Tail

cover

Set

screws

Nut

Hole to fix

unit

0°

45°

90°

135

°

180°

R

E

T

U

R

N

C

U

T

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Hitachi VB 16Y Safety Instructions And Instruction Manual

Hitachi VB 16Y Safety Instructions And Instruction Manual

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