Hitachi WR12DM2, WR9DM2, WH12DM2, WH9DM2 User Manual

Model Modèle Modelo

Variable speed

WH 12DM2 • WH 9DM2 WR 12DM2

WH12DM2 WR12DM2

• WR 9DM2

Cordless Impact Driver Visseuse à percussion à batterie Atornillador de impacto a battería

Cordless Impact Wrench Clé à choc à batterie Llave de impacto a batería

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.

English

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

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

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

GENERAL SAFETY RULES – FOR ALL

BATTERY OPERATED TOOLS ....................... 4

SPECIFIC SAFETY RULES .................................... 6

IMPORTANT SAFETY INSTRUCTIONS FOR

USE OF THE CORDLESS IMPACT DRIVER .. 7 IMPORTANT SAFETY INSTRUCTIONS FOR

USE OF THE CORDLESS IMPACT WRENCH .. IMPORTANT SAFETY INSTRUCTIONS

FOR BATTERY CHARGER ............................. 8

IMPORTANT SAFETY INSTRUCTIONS

FOR USE OF THE BATTERY AND

BATTERY CHARGER ...................................... 9

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

CONTENTS

Page

MODEL ................................................................. 10

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

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

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

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

REMOVAL AND INSTALLATION METHOD

OF BATTERY ................................................ 12

CHARGING METHOD ......................................... 12

BEFORE USE ....................................................... 15

OPERATION ......................................................... 15

OPERATIONAL CAUTIONS ................................ 20

MAINTENANCE AND INSPECTION ....................... 24

ACCESSORIES ......................................................... 26

STANDARD ACCESSORIES ............................... 26

OPTIONAL ACCESSORIES ................................. 26

PARTS LIST ............................................................ 106

Page

Français

INFORMATIONS IMPORTANTES DE SÉCURITÉ SIGNIFICATION DES MOTS D’AVERTISSEMENT

SECURITE ................................................................ 33

REGLES GENERALE DE SECURITE – POUR TOUS

LES OUTILS FONCTIONNANT SUR BATTERIE ...

REGLES DE SECURITE SPECIFIQUES ............... 35

CONSIGNES DE SÉCURITÉ IMPORTANTES

POUR L'UTILISATION DU VISSEUSE À

PERCUSSION À BATTERIE ......................... 36

CONSIGNES DE SÉCURITÉ IMPORTANTES POUR

L'UTILISATION DU CLÉ À CHOC À BATTERIE CONSIGNES DE SÉCURITÉ IMPORTANTES

POUR LE CHARGEUR DE BATTERIE ........... 37

CONSIGNES DE SÉCURITÉ IMPORTANTES

POUR L’UTILISATION DE LA BATTERIE ET

DU CHARGEUR DE BATTERIE .................... 38

DESCRIPTION FONCTIONNELLE ........................... 40

Español

I NFORMACIÓN IMPORTANTE SOBRE SEGURIDAD .........

SIGNIFICADO DE LAS PALABRAS DE

SEÑALIZACIÓN ............................................ 63

SEGURIDAD ............................................................. 64

NORMAS GENERALES DE SEGURIDAD – PARA TODAS

LAS HERRAMIENTAS ALIMENTADAS CON

BATERÍA

NORMAS ESPECÍFICOS DE SEGURIDAD ......... 66

INSTRUCCIONES IMPORTANTES PARA LA

INSTRUCCIONES IMPORTANTES PARA LA UTILIZACIÓN

INSTRUCCIONES IMPORTANTES DE SEGURIDAD

INSTRUCCIONES IMPORTANTES DE SEGURIDAD PARA

......................................................... 64

UTILIZACIÓN DEL ATORNILLADOR DE

IMPACTO A BATERÍA .................................. 67

DEL LLAVE DE IMPACTO A BATERÍA ....................

PARA EL CARGADOR DE BATERÍAS

LA BATERÍA Y EL CARGADOR DE BATERÍAS ...... 69

TABLE DES MATIERES

Page

........ 32

Página

............ 68

.. 36

ÍNDICE

MODELE .............................................................. 40

NOM DES PARTIES ............................................ 40

SPECIFICATIONS ................................................ 41

ASSEMBLAGE ET FONCTIONNEMENT ................ 42

UTILISATIONS .................................................... 42

MÉTHODE DE RETRAIT ET D’INSTALLATION

DE LA BATTERIE .......................................... 42

MÉTHODE DE RECHARGE ................................. 42

AVANT L’UTILISATION ...................................... 45

UTILISATION ....................................................... 45

PRECAUTIONS D'UTILISATION ........................ 50

ENTRETIEN ET INSPECTION .................................. 54

ACCESOIRES ........................................................... 57

ACCESSOIRES STANDARD ............................... 57

ACCESSOIRES EN OPTION ................................ 57

LISTE DES PIECES ................................................. 106

DESCRIPCIÓN FUNCIONAL .................................... 71

MODELO .............................................................. 71

NOMENCLATURA ............................................... 71

ESPECIFICACIONES ............................................ 72

MONTAJE Y OPERACIÓN ...................................... 73

APLICACIONES ................................................... 73

MÉTODO DE EXTRACCIÓN E INSTALACIÓN

DE LA BATERÍA ............................................ 73

MÉTODO DE CARGA .......................................... 73

ANTES DE LA UTILIZACIÓN .............................. 76

OPERACIÓN ........................................................ 76

PRECAUCIONES OPERACIONALES .................. 81

MANTENIMIENTO E INSPECCIÓN ........................ 85

ACCESORIOS ........................................................... 88

ACCESORIOS ESTÁNDAR ................................. 88

ACCESORIOS OPCIONALES .............................. 88

LISTA DE PIEZAS .................................................. 106

Page

Página

English

IMPORTANT SAFETY INFORMATION

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

MEANINGS OF SIGNAL WORDS

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

death or serious injury.

CAUTION indicates a potentially hazardous situations which, if not avoided, may result in minor or moderate injury, or may cause machine damage.

NOTE emphasizes essential information.

English

SAFETY

GENERAL SAFETY RULES – FOR ALL BATTERY OPERATED TOOLS

WARNING: Read and understand all instructions.

Failure to follow all instructions listed below, may result in electric shock, fire and/or serious personal injury.

SAVE THESE INSTRUCTIONS

1. Work Area

(1) Keep your work area clean and well lit. Cluttered benches and dark areas invite

accidents.

(2) Do not operate power tools in explosive atmospheres, such as in the presence of

flammable liquids, gases, or dust. Power tools create sparks which may ignite the

dust of fumes.

(3) Keep bystanders, children and visitors away while operating a power tool.

Distractions can cause you to lose control.

2. Electrical Safety (1) A battery operated tool with integral batteries or a separate battery pack must be

recharged only with the specified charger for the battery. A charger that may be

suitable for one type of battery may create a risk of fire when used with another battery.

(2) Use battery operated tool only with specifically designed battery pack. Use of any

other batteries may create a risk of fire.

3. Personal Safety (1) Stay alert, watch what you are doing and use common sense when operating a

power tool. Do not use tool while tired or under the influence of drugs, alcohol, or medication. A moment of inattention while operating power tools may result in

serious personal injury.

(2) Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep

your hair, clothing and gloves away from moving parts. Loose clothes, jewelry, or

long hair can be caught in moving parts.

(3) Avoid accidental starting. Be sure switch is off position before inserting battery.

Carrying tools with your finger on the switch or inserting the battery pack into a tool with the switch on invites accidents.

(4) Remove adjusting keys or wrenches before turning the tool on. A wrench or a key

that is left attached to a rotating part of the tool may result in personal injury.

(5) Do not overreach. Keep proper footing and balance at all times. Proper footing and

balance enable better control of the tool in unexpected situations.

(6) Use safety equipment. Always wear eye protection. Dust mask, non-skid safety

shoes, hard hat, or hearing protection must be used for appropriate conditions.

4. Tool Use and Care (1) Use clamps or other practical way to secure and support the workpiece to a stable

platform. Holding the work by hand or against your body is unstable and may lead

to loss of control.

(2) Do not force tool. Use the correct tool for your application. The correct tool will do

the job better and safer at the rate for which it is designed.

(3) Do not use tool if switch does not turn it on or off. Any tool that cannot be controlled

with the switch is dangerous and must be repaired.

(4) Disconnect battery pack from tool or place the switch in the locked or off position

before making any adjustments, changing accessories, or storing the tools. Such

preventive safety measures reduce the risk of starting the tool accidentally.

(5) Store idle tools out of reach of children and other untrained persons. Tools are

dangerous in the hands of untrained users.

(6) When battery pack is not in use, keep it away from other metal objects like: paper

clips, coins, keys, nails, screws, or other small metal objects that can make a connection from one terminal to another. Shorting the battery terminals together

may cause sparks, burns, or a fire.

(7) Maintain tools with care. Keep cutting tools sharp and clean. Properly maintained

tools, with sharp cutting edges are less likely to bind and are easier to control.

(8) Check for misalignment or binding of moving parts, breakage of parts, and any

other condition that may affect the tools operation. If damaged, have the tool serviced before using. Many accidents are caused by poorly maintained tools.

(9) Use only accessories that are recommended by the manufacturer for your model.

Accessories that may be suitable for one tool, may become hazardous when used on another tool.

5. Service (1) Tool service must be performed only by qualified repair personnel. Service or

maintenance performed by unqualified personnel could result in a risk of injury.

(2) When servicing a tool, use only identical replacement parts. Follow instructions in

the Maintenance section of this manual. Use of unauthorized parts or failure to

follow Maintenance Instruction may create a risk of electric shock or injury.

English

WARNING:

Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

● Lead from lead-based paints,

● Crystalline silica from bricks and cement and other masonry products, and

● Arsenic and chromium from chemically-treated lumber.

Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles.

English

SPECIFIC SAFETY RULES

1. Hold tools by insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring. Contact with a “live” wire will make exposed

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

2. Never touch moving parts.

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

3. Never operate without all guards in place.

Never operate this tool without all guards or safety features in place and in proper working order. If maintenance or servicing requires the removal of a guard or safety feature, be sure to replace the guard or safety feature before resuming operation of the tool.

4. Use right tool.

Don’t force small tool or attachment to do the job of a heavy-duty tool. Don’t use tool for purpose not intended —for example— don’t use circular saw for cutting tree limbs or logs.

5. 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.

6. 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.

7. Definitions for symbols

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

— ............ direct current

---

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

---/min .... revolutions or reciprocation per minute

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

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

9. 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.

10. Blades and accessories must be securely mounted to the tool.

Prevent potential injuries to youself or others. Blades, cutting implements and accessories which have been mounted to the tool should be secure and tight.

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. Carefully handle power tools.

Should a power tool be dropped or struck against hard materials inadvertently, it may be deformed, cracked, or damaged.

13. 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.

English

IMPORTANT SAFETY INSTRUCTIONS FOR USE OF THE CORDLESS IMPACT DRIVER

WARNING: Death or serious bodily injury could result from improper or unsafe use

of the cordless impact driver. To avoid these risks, follow these basic safety instructions:

1. Never use this driver handle for any application other than those in this manual.

2. Never place hands or other body parts near the drill bit or chuck during operation. Hold the impact driver by its handle only.

3. When working in high places, always make sure that ther is no one below before starting to work.

4. Always wear eye and ear protection when you work.

5. Always install the driver bit securely. A loose bit is dangerous because it can come loose while you are working.

6. Always use the driver bit that matches the screw size.

7. Always have the screw you are screwing in and this impact driver in a straight line. Working with this impact driver at an angle to the screw can damage the screw head and will not give the prescribed tightening torque.

IMPORTANT SAFETY INSTRUCTIONS FOR USE OF THE CORDLESS IMPACT WRENCH

WARNING: Death or serious bodily injury could result from improper or unsafe use

of the cordless impact wrench. To avoid these risks, follow these basic safety instructions:

1. Never use this wrench handle for any application other than those in this manual.

2. When working in high places, always make sure that there is no one below before starting to work.

3. Always wear eye and ear protection when you work.

4. Confirm whether the socket has any crack in it.

5. Attach the hex. socket securely onto the anvil. If the hex. socket is insufficiently secured, it may drop out and cause an accident. For hex. socket attachment refer to “OPERATION” on page 16.

6. Confirm the tightening torque by a torque wrenck before use in order to ascertain the correct tightening torque to be used.

7. If a universal joint is used, be sure not to operate the unit in a no-load condition. Operating in this condition is dangerous. When the socket section spins around it may cause injury to hands or bodies, or the resulting intense vibration may cause the user to drop the tool.

8. Be careful that foreign matters do not block the holes located on both sides of the handle. Also do not close the holes with a tape. The holes act an important role.

English

IMPORTANT SAFETY INSTRUCTIONS FOR BATTERY CHARGER

1. This manual contains important safety and operating instructions for battery charger Model UC14YF2 or UC14YFA.

2. Before using battery charger, read all instructions and cautionary markings on (1) battery charger, (2) battery, and (3) product using battery.

3. To reduce risk of injury, charge HITACHI rechargeable battery type EB7, EB9, EB12, EB14 series. Other type of batteries may burst causing personal injury and damage.

4. Do not expose battery charger to rain or snow.

5. Use of an attachment not recommended or sold by the battery charger manufacturer may result in a risk of fire, electric shock, or injury to persons.

6. To reduce risk of damage to electric plug and cord, pull by plug when disconnecting battery charger.

7. Make sure cord is located so that it will not be stepped on, tripped over, or otherwise subjected to damage or stress.

8. An extension cord should not be used unless absolutely necessary. Use of improper extension cord could result in a risk of fire and electric shock. If extension cord must be used make sure: a. That blades of extension cord are the same number, size, and shape as those of

plug on battery charger; b. That extension cord is properly wired and in good electrical condition; and c. That wire size is large enough for AC ampere rating of battery charger as specified

in Table 1.

Table 1

RECOMMENDED MINIMUM AWG SIZE FOR

EXTENSION CORDS FOR BATTERY CHARGERS

AC Input Rating Amperes* AWG Size of Cord

Equal to or but less Length of Cord, Feet (Meter)

greater than than 25 (7.5) 50 (15) 100 (30) 150 (45)

02 1818 18 16 23 1818 16 14 34 1818 16 14

*If the input rating of a battery charger is given in watts rather than in amperes, the

corresponding ampere rating is to be determined by dividing the wattage rating by the voltage rating–for example:

1250 watts 125 volts

9. Do not operate battery charger with damaged cord or plug – replace them immediately.

10. Do not operate battery charger if it has received a sharp blow, been dropped, or otherwise damaged in any way; take it to a qualified serviceman.

11. Do not disassemble battery charger; take it to a qualified serviceman when service or repair is required. Incorrect reassembly may result in a risk of electric shock or fire.

12. To reduce risk of electric shock, unplug charger from receptacle before attempting any maintenance or cleaning. Removing the battery will not reduce this risk.

= 10 amperes

English

IMPORTANT SAFETY INSTRUCTIONS FOR USE OF THE BATTERY AND BATTERY CHARGER

You must charge the battery before you can use the cordless impact wrench. Before using the model UC14YF2 or UC14YFA battery charger, be sure to read all instructions and cautionary statements on it, the battery and in this manual. REMEMBER: USE ONLY HITACHI BATTERY TYPES EB7 SERIES, EB9 SERIES, EB12 SERIES, EB14 SERIES. OTHER TYPES OF BATTERIES MAY BURST AND CAUSE INJURY!

Follow these instructions to avoid the risk of injury:

WARNING: Improper use of the battery or battery charger can lead to serious injury.

To avoid these injuries:

1. NEVER disassemble the battery.

2. NEVER incinerate the battery, even if it is damaged or is completely worn out. The

battery can explode in a fire.

3. NEVER short-circuit the battery.

4. NEVER insert any objects into the battery charger’s air vents. Electric shock or damage

to the battery charger may result.

5. NEVER charge outdoors. Keep the battery away from direct sunlight and use only

where there is low humidity and good ventilation.

6. NEVER charge when the temperature is below 32°F (0°C) or above 104°F (40°C).

7. NEVER connect two battery chargers together.

8. NEVER insert foreign objects into the hole for the battery or the battery charger.

9. NEVER use a booster transformer when charging.

10. NEVER use an engine generator or DC power to charge.

11. NEVER store the battery or battery charger in places where the temperature may

reach or exceed 104°F (40°C).

12. ALWAYS operate charger on standard household electrical power (120 volts). Using

the charger on any other voltage may overheat and damage the charger.

13. ALWAYS wait at least 15 minutes between charges to avoid overheating the charger.

14. ALWAYS disconnect the power cord from its receptacle when the charger is not in

use.

SAVE THESE INSTRUCTIONS

AND

MAKE THEM AVAILABLE TO

OTHER USERS

AND

OWNERS OF THIS TOOL!

English

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.

NEVER operate, or attempt any maintenance on the tool unless you have first read and understood all safety instructions contained in this manual.

Some illustrations in this Instruction Manual may show details or attachments that differ from those on your own power tool.

MODEL

WH12DM2: with charger (UC14YF2 or UC14YFA) and case WH9DM2: with charger (UC14YF2 or UC14YFA) and case WR12DM2: with charger (UC14YF2 or UC14YFA) and case WR9DM2: with charger (UC14YF2 or UC14YFA) and case

NAME OF PARTS

1. Cordless Impact Driver/Wrench

Protector

Switch Trigger

Handle

WH12DM2

䡬 Battery

Housing

Nameplate

Air Vents

Push Button

Hook

Battery

Terminal Hole

Nameplate

EB1220BL EB9B

Latch

WR12DM2: 1/2" (12.7 mm) WR9DM2: 3/8" (9.5 mm)

Fig. 1

Protector

Switch Trigger

Handle

WR12DM2

Nameplate

Housing

Nameplate

Air Vents

Push Button

Hook

Battery

Terminal Hole

Latch

2. Battery Charger

Battery Installation Hole

Pilot Lamp

Cord

Battery Installation Hole

Caution Plate

Body

Nameplate

Pilot Lamp

Caution Plate

Nameplate

Fig. 2

SPECIFICATIONS

1. Cordless Impact Driver

Model WH9DM2 WH12DM2

(9.6 V) (12 V) No-load speed 0 – 2800/min 0 – 2600/min Capacity 5/32" – 5/16" (M4 – M8) (Small screw)

Tightening torque

Bit shank size 1/4" (6.35 mm) Hex. Rechargeable EB9B (2.0 Ah) EB1220BL (2.0 Ah)

battery Ni-Cd battery, 9.6 V Ni-Cd battery, 12 V

Weight 2.6 lbs. (1.2 kg) 3.5 lbs. (1.6 kg)

Maximum 710 in-lbs.

Tightening is 15/32" (M12) high tension bolt, when fully charged at 68°F (20°C) temp. Tightening time: 3 sec.

Charging and discharging Charging and discharging

frequency: about 1000 frequency: about 1000

3/16" – 15/32" (M5 – M12) (Ordinary bolt)

3/16" – 3/8" (M5 – M10) (High tension bolt)

{80 N·m 820 kgf·cm}

Maximum 1190 in-lbs.

{135 N·m 1375 kgf·cm} Tightening is 9/16" (M14) high tension bolt, when fully charged at 68°F (20°C) temp. Tightening time: 3 sec.

English

2. Cordless Impact Wrench

Model WR9DM2 WR12DM2

Motor DC motor No-load speed 0 – 2600/min Drive 3/8" (9.5 mm) square 1/2" (12.7 mm) square Capacity 1/4" – 9/16" (M6 – M14) 1/4" – 5/8" (M6 – M16)

(Ordinary bolt) (Ordinary bolt) 1/4" – 3/8" (M6 – M10) 1/4" – 15/32" (M6 – M12) (High tension bolt) (High tension bolt)

Tightening torque Maximum 1060 in-lbs. Maximum 1460 in-lbs.

Tightening is 15/32" (M12) Tightening is 5/8" (M16) F10T, high tension bolt, when fully when fully charged at 68°F charged in 68°F (20°C) temp. (20°C) temp. Tightening time: 3 sec. Tightening time: 3 sec.

Rechargeable EB9B (2.0 Ah) EB1220BL (2.0 Ah) battery Ni-Cd battery, 9.6 V Ni-Cd battery, 12 V

Charging and discharging Charging and discharging

frequency: about 1000 frequency: about 1000

Weight 3.0 lbs. (1.4 kg) 3.5 lbs. (1.6 kg)

(9.6 V) (12 V)

{120 N·m, 1220 kgf·m} {165 N·m, 1685 kgf·m}

3. Battery Charger

Model UC14YF2 UC14YFA Input power source Single phase: AC 120 V 60 Hz Charging time Approx. 60 min. Approx. 50 min. Charger Charging voltage DC 7.2–14.4 V

Charging current DC 1.9 A DC 2.6 A

Weight 2.9 lbs. (1.3 kg) 1.3 lbs. (0.6 kg)

English

ASSEMBLY AND OPERATION

APPLICATIONS

<WH12DM2, WH9DM2> 䡬 Driving and removing of small screws, small bolts, etc. <WR12DM2, WR9DM2> 䡬 Tightening and loosening of all types of bolts and nuts, used for securing structural

items.

REMOVAL AND INSTALLATION METHOD OF BATTERY

䡬 How to install the battery

Handle

Rechargeable battery

Latch

Insert

Pull out

(WH12DM2, WR12DM2)

Fig. 3

Align the battery with the groove in tool handle and slip it into place. Always insert it all the way until it locks in place with a little click. If not, it may accidentally fall out of the tool, causing injury to you or someone around you. (Fig. 3)

䡬 How to remove the battery

Withdraw battery from the tool handle while pressing the latch on the side of the battery. (Fig. 3)

CHARGING METHOD

NOTE: Before plugging into the receptacle, make sure the following points.

䡬 The power source voltage is stated on the nameplate. 䡬 The cord is not damaged.

WARNING: Do not charge at voltage higher than indicated on the nameplate.

If charged at voltage higher than indicated on the nameplate, the charger will burn up.

1. Insert the plug of battery charger into the receptacle. When the plug of battery charger has been inserted into the receptacle, pilot lamp will blink in red. (At 1-second intervals)

WARNING: Do not use the electrical cord if damaged. Have it

repaired immediately.

English

2. Insert the battery to the battery charger. Insert the battery into the battery charger as shown in Fig. 4. Make sure it contacts the bottom of the battery charger.

Rechargeable battery

Battery Installation Hole

Pilot lamp

Battery Installation Hole

Fig. 4

CAUTION:

● If the batteries are inserted in the reverse direction, not only recharging will become impossible, but it may also cause problems in the charger such as a deformed recharging terminal.

3. Charging When the battery is connected to the battery charger, charging will commence and the pilot lamp will light in red. (See Table 2)

NOTE: If the pilot lamp flikers in red, pull out the plug from the receptacle and check if the

battery is properly mounted.

When the battery is fully charged, the pilot lamp will blink in red slowly. (At 1-second intervals) (See Table 2)

(1) Pilot lamp indication

The indications of the pilot lamp will be as shown in Table 2, according to the condition of the charger or the rechargeable battery.

Before charging

Blinks (RED)

English

Table 2

Indications of the pilot lamp

Lights for 0.5 seconds. Does not light for

0.5 seconds. (off for 0.5 seconds)

While charging

Charging complete

Charging impossible

Lights (RED)

Blinks (RED)

Flikers (RED)

Lights (GREEN)

Lights continuously

Lights for 0.5 seconds. Does not light for

0.5 seconds. (off for 0.5 seconds)

Lights for 0.1 seconds. Does not light for

0.1 seconds. (off for 0.1 seconds)

Lights continuously

Malfunction in the battery or the charger

The battery temperature is high, making recharging impossible.

(2) Regarding the temperature of the rechargeable battery.

The temperatures for rechargeable batteries are as shown in the table below, and batteries that have become hot should be cooled for a while before being recharged.

Table 3 Recharging of batteries that have become hot

Rechargeable batteries

EB1220BL, EB9B

Temperatures at which the battery can be recharged 23°F–140°F

(–5°C–60°C)

(3) Regarding recharging time (At 68°F (20°C))

In approx. 60 minutes (UC14YF2) In approx. 50 minutes (UC14YFA)

NOTE: The charging time may vary according to temperature and power source voltage.

4. Disconnect battery charger from the receptacle.

CAUTION:

● Do not pull the plug out of the receptacle by pulling on the cord. Make sure to grasp the plug when removing from receptacle to avoid damaging cord.

5. Remove the battery from the battery charger. Supporting the battery charger with hand, pull out the battery from the battery charger.

CAUTION:

● When the battery charger has been continuosly used, the battery charger will be heated, thus constituting the cause of the failures. Once the charging has been completed, give 15 minutes rest until the next charging.

● If the battery is rechraged when it is warm due to battery use or exposure to sunlight, the pilot lamp may light in green. The battery will not be recharged. In such a case, let the battery cool before charging.

English

● When the pilot lamp flikers rapidly in red (at 0.2–second intervals), check for and take out any foreign objects in the charger’s battery installation hole. If there are no foreign objects, it is probable that the battery or charger is malfunctioning. Take it to your authorized Service Center.

● Since the built-in micro computer takes about 3 seconds to confirm that the battery being charged with UC14YFA or UC14YF2 is taken out, wait for a minimum of 3 seconds before reinserting it to continue charging. If the battery is reinserted within 3 seconds, the battery may not be properly charged.

Regarding electric discharge in case of new batteries, etc.

As the internal chemical substance of new batteries and batteries that have not been used for an extended period is not activated, the electric discharge might be low when using them the first and second time. This is a temporary phenomenon, and normal time required for recharging will be restored by recharging the batteries 2 – 3 times.

How to make the batteries perform longer

(1) Recharge the batteries before they become completely exhausted.

When you feel that the power of the tool becomes weaker, stop using the tool and recharge its battery. If you continue to use the tool and exhaust the electric current, the battery may be damaged and its life will become shorter.

(2) Avoid recharging at high temperatures.

A rechargeable battery will be hot immediately after use. If such a battery is recharged immediately after use, its internal chemical substance will deteriorate, and the battery life will be shortened. Leave the battery and recharge it after it has cooled for a while.

BEFORE USE

Check the work area to make sure that it is clear of debris and clutter. Clear the area of unnecessary personnel. Ensure that lighting and ventilation is adequate.

OPERATION

1. Using the light equipped hook

CAUTION:

● Do not attach the tip tool to the tool main unit when carrying the tool main unit with the light equipped hook suspended from a waist belt. Such action could result in injury.

The light equipped hook has the following two functions: 䡬 It can be used as a hook for suspending from a waist belt when required by the

nature of the work.

䡬 It can be used as an auxiliary light for such operations as tightening screws in a

dark place.

1.1 Using the hook The hook can be installed on the right or left side and the angle can be adjusted in 5 steps between

0° and 80°.

(1) Operating the hook

(a) Pull out the hook toward you in the direction

(B)

of arrow (A) and turn in the direction of arrow (B). (Fig. 5)

(b) The angle can be adjusted in 5 steps (0°, 20°,

40°, 60°, 80°).

Fig. 5 Adjust the angle of the hook to the desired position for use.

(2) Switching the hook position

CAUTION:

● If the tool falls, there is a risk that malfunction and/ or physical damage can occur. It is recommended that you also use fall-preventing wires, etc.

Loosen

● Incomplete installation of the hook may result in bodily injury when used.

Fig. 6

(a) Securely hold the main unit and remove the

screw using a slotted head screwdriver or a

coin. (Fig. 6) (b) Remove the hook and spring. (Fig. 7) (c) Install the hook and spring on the other side

and securely fasten with screw. (Fig. 6)

English

Hook

(A)

NOTE: Pay attention to the spring orientation.

Install the spring with larger diameter away

from you. (Fig. 8)

1.2 Using as an auxiliary light (1) Press the switch to turn off the light.

If forgotten, the light will turn off automatically after 15 minutes.

Spring

Fig. 7

Larger diameter faces away

Fig. 8

English

(2) The direction of the light can be adjusted within

the range of hook positions 1 – 5. (Fig. 9) 䡬 Lighting time

AAAA manganese batteries: approx. 15

hrs.

AAAA alkali batteries: approx. 30 hrs.

CAUTION:

● Do not look directly into the light. Such actions could result in eye injury.

1.3 Replacing the batteries

(1) Loosen the hook screw with a Phillips-head

screwdriver (No. 1). (Fig. 10) Remove the hook cover by pushing in the direction of the arrow. (Fig. 11)

(2) Remove the old batteries and insert the new

batteries. Align with the hook indications and position the plus (+) and minus (–) terminals correctly. (Fig. 12)

(3) Align the indentation in the hook main body

with the protuberance of the hook cover, press the hook cover in the direction opposite to that of the arrow shown in Fig. 11 and then tighten the screw. Use commercially available AAAA batteries (1.5 V).

Screw

Fig. 9

Hook

Fig. 10

Switch

Hook

Phillips-head screwdriver

Arrow

NOTE: Do not tighten the screw excessively. Such

action could strip the screw threads.

CAUTION:

● Failure to observe the following can result in battery leakage, rust or malfunction. Position the plus (+) and minus (–) terminals correctly. Replace both batteries at the same time. Do not mix old and new batteries. Remove exhausted batteries from the hook immediately.

● Do not discard batteries together with normal trash and do not throw batteries into fire.

● Store batteries out of the reach of children.

● Use batteries correctly in accordance with the

battery specifications and indications.

Indentation

AAAA batteries

Fig. 11

Hook main body + –

– +

Indentation

Hook cover

Fig. 12

Hook cover

Protuberance

English

2. Installing the bit (WH12DM2, WH9DM2)

Always follow the following procedure to install driver bit. (Fig. 13)

(1) Pull the guide sleeve back. (2) Insert the bit into the hexagonal hole in the anvil. (3) Release the guide sleeve and it returns to its

origianl position.

CAUTION:

● If the guide sleeve does not return to its original position, then the bit is not installed properly.

3. Removing the bit (WH12DM2, WH9DM2)

Please do the opposite point on the method of installing bit.

Driver bit

Hexagonal socket

Movement

Hexagonal hole in the anvil

Fig. 13

Groove

Guide sleeve

Anvil

4. Selecting the socket matched to the bolt (WR12DM2, WR9DM2)

Be sure to use a socket which is matched to the bolt to be tightened. Using an improper socket will not only result in insufficient tightening but also in damage to the socket or nut. A worn or deformed hex. or square-holed socket will not give an adequate tightness for fitting to the nut or anvil, consequently resulting in loss of tightening torque. Pay attention to wear of socket hole, and replace before further wear has developed. Matching socket and bolt sizes are shown Tables 4, 5, 6 and 7. The numerical value of a socket designation denotes the side-to-side distance (H) of its hex. hole.

Hexagonal socket

Fig. 14

Hole

Plunger

Anvil

5. Installing a socket (Fig. 14, 15-1) (WR12DM2)

Align the plunger located in the square part of the anvil with the hole in the hex. socket. Then push the plunger, and mount the hex. socket on the anvil. Check that the plunger is fully engaged in the hole. When removing the socket, reverse the sequence.

Hexagonal socket

Fig. 15-1

Hole

Anvil

6. Retaining ring type (Fig. 14, 15-2) (WR9DM2)

(1) Align the square portions of the socket and the

anvil with each other.

(2) Make sure to firmly install the socket by pushing

it all the way into the anvil.

(3) When removing the socket, pull it out of the anvil.

CAUTION:

䡬 Please use the designated attachments which are listed in the operations manual and

Hitachi’s catalog. Accidents or injuries could result from not doing so.

Fig. 15-2

English

䡬 Make sure to firmly install the socket in the anvil. If the socket is not firmly installed it

might come out and cause injuries.

7. Confirm that the battery is mounted correctly

Push button

8. Check the rotational direction

The bit rotates clockwise (viewed from the rear side) by pushing the R-side of the push button. The L-side of the push button is pushed to turn the bit counterclockwise. (See Fig. 16).

(The

CAUTION:

● The push button can not be switched while the impact driver is turning. To switch the push button, stop the impact driver, then set the push button.

and R marks are engraved on the body.)

Push

Fig. 16

Push

9. Switch operation

䡬 When the trigger switch is depressed, the tool rotates. When the trigger is released, the

tool stops.

䡬 The rotational speed can be controlled by varying the amount that the trigger switch is

pulled. Speed is low when the trigger switch is pulled slightly and increases as the trigger switch is pulled more.

NOTE: A buzzing noise is produced when the motor is about to rotate; this is only a noise,

not a machine failure.

10. Tightening and loosening screws

Install the bit that matches the screw, line up the bit in the grooves of the head of the screw, then tighten it. Push the impact driver just enough to keep the bit fitting the head of the screw.

CAUTION:

䢇 Applying the impact driver for too long tightens the screw too much and can break it. 䢇 Tightening a screw with the impact driver at an angle to that screw can damage the

head of the screw and the proper force will not be transmitted to the screw. Tighten with this impact driver lined up straight with the screw.

11. Number of screw tightenings possible (WH12DM, WH9DM)

Please refer to the table below for the number of screw tightenings possible with one charge.

<WH12DM2> (EB1220BL)

Screw used No. of tightenings

Wood screw 5/32" × 2"

(Soft wood) (ø4 × 50)

Machine screw

5/16" × 5/8" (M8 × 16)

Approx. 530

Approx. 1170

<WH9DM2> (EB9B)

Screw used No. of tightenings

Wood screw 5/32" × 2"

(Soft wood) (ø4 × 50)

Machine screw

5/16" × 5/8" (M8 × 16)

These values may vary slightly, according to surrounding temperature and battery characteristics.

Approx. 350

Approx. 1130

12. Tightening and loosening bolts

A hex. socket matching the bolt or nut must first be selected. Then mount the socket on the anvil, and grip the nut to be tightened with the hex. socket. Holding the wrench in line with the bolt, press the power switch to impact the nut for several seconds. If the nut is only loosely fitted to the bolt, the bolt may turn with the nut, therefore mistaking proper tightening. In this case, stop impact on the nut and hold the bolt head with a wrench before restarting impact, or manually tighten the bolt and nut to prevent them slipping.

13. Number of bolt tightened possible (WR12DM2, WR9DM2)

Please refer to the table below for the number of bolt tightened possible with one charge.

<WR12DM2> (EB1220BL)

English

Bolt used No. of tightenings

15/32" × 1–3/4" (M12 × 45) High tension bolt Approx. 120

<WR9DM2> (EB9B)

Bolt used No. of tightenings

15/32" × 1–3/4" (M12 × 45) High tension bolt Approx. 80

These values may vary slightly, according to surrounding temperature and battery characteristics.

OPERATIONAL CAUTIONS

1. Resting the unit after continuous work

After use for continuous bolt-tightening work, rest the unit for 15 minutes or so when replacing the battery. The temperature of the motor, switch, etc. will rise if the work is started again immediately after battery replacement, eventually resulting in burnout.

CAUTION: Do not touch the protector, as it gets very hot during continuous work.

2. Cautions on use of the speed control switch

This switch has a built-in, electronic circuit which steplessly varies the rotation speed. Consequently, when the switch trigger is pulled only slightly (low speed rotation) and the motor is stopped while continuously driving in screws, the components of the electronic circuit parts may overheat and be damaged.

English

3. Tightening torque

Refer to Fig. 17, 18, 19 and 20 for the tightening torque of bolts (according to size), under the conditions shown in Fig. 21. Please use this example as a general reference, as tightening torque will vary according to tightening conditions.

NOTE:

䡬 If a long striking time is used, screws will be strongly tightened. This may cause the

screw to break, or may damage the end of the bit.

䡬 If the unit is held at an angle to the screw being tightened, the head of the screw may

be damaged, or the specified torque may not be transmitted to the screw. Always keep the unit and the screw being tightened in a straight line.

4. Use a tightening time suitable for the screw

The appropriate torque for a screw differs according to the material and size of the screw, and the material being screwed etc., so please use a tightening time suitable for the screw. In particular, if a long tightening time is used in the case of screws smaller than 5/16” (8 mm), there is a danger of the screw breaking, so please confirm the tightening time and the tightening torque beforehand.

5. Work at a tightening torque suitable for the bolt under impact

The optimum tightening torque for nuts or bolts differs with material and size of the nuts or bolts. An excessively large tightening torque for a small bolt may stretch or break the bolt. The tightening torque increases in proportionate to the operaton time. Use the correct operating time for the bolt.

6. Holding the tool

Hold the impact wrench firmly with both hands. In this case hold the wrench in line with the bolt. It is not necessary to push the wrench very hard. Hold the wrench with a force just sufficient to counteract the impact force.

7. Confirm the tightening torque

The following factors contribute to a reduction of the tightening torque. So confirm the actual tightening torque needed by screwing up some bolts before the job with a hand torque wrench. Factors affecting the tightening torque are as follows.

(1) Voltage

When the discharge margin is reached, voltage decreases and tightening torque is lowered.

(2) Operating time

The tightening torque increases when the operating time increases. But the tightening torque does not increase above a certain value even if the tool is driven for a long time. (See Fig. 17, 18, 19 and 20)

(3) Diameter of bolt

The tightening torque differs with the diameter of the bolt as shown in Fig. 17, 18, 19 and 20. Generally a larger diameter bolt requires larger tightening torque.

(4) Tightening conditions

The tightening torque differs according to the torque ratio, class, and length of bolts even when bolts with the same size threads are used. The tightening torque also differs according to the condition of the surface of workpiece through which the bolts are to be tightened. When the bolt and nut turn together, torque is greatly reduced.

(5) Using optional parts (WR12DM2, WR9DM2)

The tightening torque is reduced a little when an extension bar, universal joint or a long socket is used.

English

(6) Clearance of the socket (WR12DM2, WR9DM2)

A worn or deformed hex. or a square-holed socket will not give an adequate tightness to the fitting between the nut or anvil, consequently resulting in loss of tightening torque. Using an improper socket which does not match to the bolt will result in an insufficient tightening torque. Matching socket and bolt sizes are shown in Table 4, 5, 6 and 7.

(7)Tightening torque varies, depending on the battery’s charge level (WR12DM2, WR9DM2)

Fig. 22 and 23 show an example of the relationship between tightening torque and the number of tightenings. As shown, tightening torque gradually weakens with the increase in the number of tightenings. In particular, as the torque decreases very close to the complete discharge (“a” margin in graph), the unit’s impact weakens, the number of time impacts declines and tightening torque drops off abruptly. If this occurs, check torque level, then recharge the battery if necessary.

kgf·cm

N·m

(in-lbs)

Tightening torque

1000

(868)

800

(695)

600

(521)

400

(347)

200

(174)

100

High strength bolt

Ordinary bolt

0 123

Tightening time: sec (Steel plate thickness

t = 3/8" (10 mm))

3/8"×1-5/32"

(M10×30)

kgf·cm

N·m

(in-lbs)

Tightening torque

1400

(1215)

1200

(1042)

1000

(868)

800

(694)

600

(521)

400

(347)

200

(174)

140

High strength bolt

120

100

0 123

Tightening time: sec (Steel plate thickness

t = 1" (25 mm))

Fig. 17

15/32"×1-3/4"

(M12×45)

Ordinary bolt

kgf·cm

(in-lbs)

1400

(1215)

1200

(1042)

1000

(868)

800

(694)

600

(521)

Tightening torque

400

(347)

200

(174)

9/16"×1-15/16"

N·m

140

120

High strength bolt

100

Ordinary bolt

01 2 3

Tightening time: sec (Steel plate thickness

t = 1" (25 mm))

(M14×50)

English

01 2 3

kgf·cm

(in-lbs)

N·m

(1736)

(1302)

(868)

(434)

9/16"×1-15/16"

(M14×50)

200

150

100

2000

1500

1000

500

kgf·cm (in-lbs) (M8×30)

1000

(868)

800

(694)

600

(521)

400

(347)

Tightening torque

200

(174)

N·m

100

High strength bolt

5/16"×1-3/6"

1 2 3

Tightening time: sec (Steel plate thickness

t = 3/8" (10 mm))

kgf·cm

(in-lbs)

2000

(1736)

1500

(1302)

1000

(868)

500

(434)

Tightening torque

3/8"×1-5/32"

N·m

(M10×30)

200

150

High strength bolt

100

Ordinary bolt Ordinary bolt

0 123

Tightening time: sec (Steel plate thickness

t = 3/8" (10 mm))

kgf·cm (in-lbs) (M10×30)

1000

(868)

800

(694)

600

(521)

400

(347)

Tightening torque

200

(174)

3/8"×1-3/6"

N·m

100

High strength bolt

Ordinary bolt

1 2 3

Tightening time: sec (Steel plate thickness

t = 1" (25 mm))

Fig. 18

kgf·cm (in-lbs)

2000

(1736)

1500

(1302)

1000 (868)

500

(434)

Tightening torque

Tightening time: sec (Steel plate thickness

t = 1" (25 mm))

15/32"×1-3/4"

N·m

(M12×45)

200

High strength bolt

150

100

0 123

Fig. 19

kgf·cm

(in-lbs) (M12×45)

1200

(1042)

1000

(868)

800

(694)

600

(521)

400

(347)

Tightening torque

200

(174)

15/32"×1-3/4"

N·m

120

100

High strength bolt

Ordinary bolt

0 1 2 3

Tightening time: sec (Steel plate thickness

t = 1" (25 mm))

High strength bolt

Tightening torque

Ordinary bolt

Tightening time: sec (Steel plate thickness

t = 1" (25 mm))

English

kgf·cm (in-lbs) (M8×30)

1000

(868)

800

(694)

600

(521)

400

(347)

200

(174)

Tightening torque

5/16"×1-3/6"

N·m

100

High strength bolt

1 2 3

Tightening time: sec (Steel plate thickness

t = 3/8" (10 mm))

Bolt

Nut

Steel plate thickness t

kgf·cm

(in-lbs) (M12×45)

1400

kgf·cm (in-lbs) (M10×30)

1000

(868)

800

(694)

600

(521)

400

(347)

200

(174)

Tightening torque

3/8"×1-3/6"

N·m

100

High strength bolt

Ordinary bolt

1 2 3

(1215)

1200

(1042)

1000

(868)

800

(694)

600

(521)

400

Tightening torque

(347)

200

(174)

Tightening time: sec (Steel plate thickness

t = 3/8" (10 mm))

Fig. 20

*The following bolt is used. Ordinary bolt: Strength grade 4.8 High tensile bolt: Hardness division 12.9

Explanation of strength grade: 4 — Yield point of bolt: 45,500 psi (32 kgf/mm

(

8 — Pulling strength of bolt: 56,900 psi (40 kgf/mm

Fig. 21

15/32"×1-3/4"

N·m

140

High strength bolt

120

100

Ordinary bolt

1 2 3

Tightening time: sec (Steel plate thickness

t = 1" (25 mm))

)

English

kgf·cm

N·m

(in-lbs)

200

2000

(1736)

160

1600

(1389)

120

1200

(1042)

800

(694)

400

Tightening torque

(347)

kgf·cm

N·m 15/32" × 1–3/4" (M12 × 45) High tension bolt

(in-lbs)

160

1600

(1389)

120

1200

(1042)

800

(694)

400

(347)

Tightening torque

5/8" × 2–5/32" (M16 × 55) F10T bolt (tightening time: 3 sec)

When full recharged

When complately discharged

020 40 60 80100 120 140

Number of tightenings (PCS)/charging

Fig. 22

(tightening time: 3 sec)

When full recharged

When complately discharged

20 40

80 100 120 140 160

Number of tightenings (PCS)/charging

Fig. 23

English

MAINTENANCE AND INSPECTION

CAUTION: Pull out battery before doing any inspection or maintenance.

1. Checking the condition of the bit (WH12DM2, WH9DM2)

The bits should be checked regularly. If worn or broken bits can slip or decrease the efficiency of the motor and burn it out. Replace worn bits with new ones.

CAUTION: If you use a driver bit of which point is worn or broken, it will be dangerous

since it slips. So replace it with a new one.

2. Checking the condition of the socket (WR12DM2, WR9DM2)

A worn or deformed hex. or a square-holed socket will not give an adequate tightness to the fitting between the nut or anvil, consequently resulting in loss of tightening torque. Pay attention to wear of a socket holes periodically, and replace with a new one if needed.

3. Check the Screws

Loose screws are dangerous. Regularly inspect them and make sure they are tight.

CAUTION: Using this power tool with loosened screws is extremely dangerous.

4. 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.

5. Inspecting the carbon brushes (Fig. 24)

The motor employs carbon brushes which are consumable parts. Since and excessively worn carbon brush can result in motor trouble, replace the carbon brush with new ones 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.

(11.5mm)

Wear limit

0.12" (3mm)

0.45"

Fig. 24

Nail of carbon brush

Protrusion of carbon brush

NOTE: When replacing the carbon brush with a new

one, be sure to use the Hitachi Carbon Brush Code No. 999054.

6. Replacing carbon brushes

Take out the carbon brush by first removing the brush cap and then hooking the protrusion of the carbon brush with a flat head screw driver, etc., as shown in Fig. 26. When installing the carbon brush, choose the direction so that the nail of the carbon brush agrees with the contact portion outside the brush tube. Then push it in with a finger as illustrated in Fig. 27. Lastly, install the brush cap.

Fig. 25

Fig. 26

English

CAUTION:

● Be absolutely sure to insert the nail of the carbon brush into the contact portion outside the brush tube. (You can insert whichever one of the two nails provided.)

● Caution must be exercised since any error in this operation can result in the deformed nail of the carbon brush and may cause motor trouble at an early stage.

Contact portion outside brush tube

Fig. 27

7. Check for Dust

Dust may be removed with a soft cloth or a cloth dampened with soapy water. Do not use bleach, chlorine, gasoline or thinner, for they may damage the plastics.

8. Disposal of the exhausted battery

WARNING: Do not dispose of the exhausted battery. The battery must explode if it

is incinerated. The product that you have purchased contains a rechargeable battery. The battery is recyclable. At the end of it’s useful life, under various state and local laws, it may be illegal to dispose of this battery into the municipal waste stream. Check with your local solid waste officials for details in your area for recycling options or proper disposal.

9. Storage

Storing in a place below 104°F (40°C) and out of the reach of children.

10. Service and repairs

All quality power tools will eventually require servicing or replacement of parts because of wear from normal use. To assure that only authorized replacement parts will be used, all service and repairs must be performed by a HITACHI AUTHORIZED SERVICE CENTER, ONLY.

11. Service parts list

CAUTION: Repair, modification and inspection of Hitachi Power Tools must be carried

out by an Hitachi Authorized Service Center. This Parts List will be helpful if presented with the tool to the Hitachi Authorized Service Center when requesting repair or other maintenance. In the operation and maintenance of power tools, the safety regulations and standards prescribed in each country must be observed.

MODIFICATIONS:

Hitachi Power Tools are constantly being improved and modified to incorporate the latest technological advancements. Accordingly, some parts may be changed without prior notice.

English

ACCESSORIES

WARNING: ALWAYS use Only authorized HITACHI replacement parts and

accessories. NEVER use replacement parts or accessories which are not intended for use with this tool. Contact HITACHI if you are not sure whether it is safe to use a particular replacement part or accessory with your tool. The use of any other attachment or accessory can be dangerous and could cause injury or mechanical damage.

NOTE: Accessories are subject to change without any obligation on the part of the HITACHI.

STANDARD ACCESSORIES

(UC14YF2)

Fig. 28

(UC14YFA)

1 Battery Charger (UC14YF2 or UC14YFA).... 1

2 Plastic Case (Code No. 322070) ................... 1

OPTIONAL ACCESSORIES.....sold separately

<WH12DM2, WH9DM2>

1. Battery

EB1220BL (Code No. 320386) EB9B (Code No. 310451)

Fig. 29

English

2. Phillips bit

Bit No. Code No.

No. 2 992671

2" (50 mm)

Fig. 30

No. 3 992672

3. Hexagonal socket

Part Name

5 mm Hexagonal socket 8 65 8 996177 6 mm Hexagonal socket 10 65 10 985329 5/16" Hexagonal socket 12 65 12 996178 8 mm Hexagonal socket 13 65 13 996179 10 mm Hexagonal socket (small type) 14 65 14 996180 10 mm Hexagonal socket 16 65 16 996181 10 mm Hexagonal socket 17 65 17 996182 1/2" Hexagonal long socket 21 166 21 996197

Engraved

characters

Engraved characters

LBCode No.

Fig. 31

4. Wood working drill bit: Code No. 959183

35/64"

(14 mm)

3-17/64" (83 mm)

Fig. 32

5. Drill chuck adapter set: Code No. 321823

Use the drill available on the market.

Fig. 33

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