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WH9DM
User Manual
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Hitachi WH9DM User Manual

MODEL Variable speed MODÈLE MODELO
WH 12DM•WH 9DM
CORDLESS IMPACT DRIVER VISSEUSE À PERCUSSION ATORNILLADORES DE PERCUSION 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
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 .......
IMPORTANT SAFETY INSTRUCTIONS
FOR BATTERY CHARGER............................ 7
IMPORTANT SAFETY INSTRUCTIONS
FOR USE OF THE BATTERY AND
BATTERY CHARGER .................................... 8
FUNCTIONAL DESCRIPTION ................................ 10
MODEL ............................................................... 10
NAME OF PARTS .............................................. 10
CONTENTS
Page
SPECIFICATIONS .............................................. 11
ASSEMBLY AND OPERATION ............................. 12
APPLICATIONS.................................................. 12
REMOVAL AND INSTALLATION METHOD
OF BATTERY .................................................. 12
CHARGING METHOD........................................ 12
BEFORE USE ..................................................... 15
7
OPERATION ....................................................... 15
OPERATIONAL CAUTIONS .............................. 17
MAINTENANCE AND INSPECTION ..................... 20
ACCESSORIES ....................................................... 22
STANDARD ACCESSORIES ............................. 22
OPTIONAL ACCESSORIES ............................... 22
Page
Français
INFORMATIONS IMPORTANTES DE SÉCURITÉ SIGNIFICATION DES MOTS D’AVERTISSEMEN
SECURITE ................................................................ 26
REGLES GENERALE DE SECURITE – POUR TOUS
LES OUTILS FONCTIONNANT SUR BATTERIE ...
REGLES DE SECURITE SPECIFIQUES ............... 28
CONSIGNES DE SÉCURITÉ IMPORTANTES POUR
L'UTILISATION DU VISSEUSE À PERCUSSION À BATTERIE CONSIGNES DE SÉCURITÉ IMPORTANTES
POUR L’UTILISATION DU CHARGEUR DE BATTERIE ... CONSIGNES DE SÉCURITÉ IMPORTANTES POUR L’UTILISATION
DE LA BATTERIE ET DU CHARGEUR DE BATTERIE ...............
DESCRIPTION FONCTIONNELLE ........................... 33
MODELE ............................................................... 33
NOM DES PARTIES............................................. 33
Español
INFORMACIÓN IMPORTANTE SOBRE SEGURIDAD SIGNIFICADO DE LAS PALABRAS DE SEÑALIZACIÓN
SEGURIDAD ............................................................. 50
NORMAS GENERALES DE SEGURIDAD – PARA TODAS
LAS HERRAMIENTAS ALIMENTADAS CON BATERÍA
NORMAS ESPECÍFICOS DE SEGURIDAD ......... 52
INSTRUCCIONES IMPORTANTES PARA LA UTILIZACIÓN
DEL ATORNILLADORES DE PERCUSION A BATERÍA INSTRUCCIONES IMPORTANTES DE SEGURIDAD
PARA EL CARGADOR DE BATERÍAS INSTRUCCIONES IMPORTANTES DE SEGURIDAD
PARA LA BATERÍA Y EL CARGADOR DE BATERÍAS
DESCRIPCIÓN FUNCIONAL .................................... 57
MODELO .............................................................. 57
NOMENCLATURA ............................................... 57
TABLE DES MATIERES
Page
.. 25
T .... 25
26
29
30
31
ÍNDICE
Página
.... 49
.. 49
.. 50
.. 53
................. 54
... 55
SPECIFICATIONS ................................................ 34
ASSEMBLAGE ET FONCTIONNEMENT ..........................
UTILISATIONS ..................................................... 35
MÉTHODE DE RETRAIT ET D’INSTALLATION
DE LA BATTERIE .......................................... 35
MÉTHODE DE RECHARGE ................................. 35
AVANT L’UTILISATION ...................................... 38
UTILISATION ....................................................... 38
PRÉCAUTIONS D'UTILISATION......................... 41
ENTRETIEN ET INSPECTION .................................. 43
ACCESOIRES ........................................................... 46
ACCESSOIRES STANDARD ............................... 46
ACCESSOIRES EN OPTION ................................ 46
ESPECIFICACIONES ............................................ 58
MONTAJE Y OPERACIÓN....................................... 59
APLICACIONES ................................................... 59
MÉTODO DE EXTRACCIÓN E INSTALACIÓN
DE LA BATERÍA ............................................ 59
MÉTODO DE CARGA .......................................... 59
ANTES DE LA UTILIZACIÓN .............................. 62
OPERACIÓN ......................................................... 62
PRECAUCIONES OPERACIONALES .................. 65
MANTENIMIENTO E INSPECCIÓN ........................ 67
ACCESORIOS ........................................................... 70
ACCESORIOS ESTÁNDAR.................................. 70
ACCESORIOS OPCIONALES .............................. 70
Page
Página
35
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.
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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.
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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.
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.
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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............ 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.
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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 BATTERY CHARGER
1. This manual contains important safety and operating instructions for battery charger Model UC14YF2.
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.
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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)
0 2 18 18 18 16 2 3 18 18 16 14 3 4 18 18 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:
1250watts 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
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 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.
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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!
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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
WH12DM: with charger (UC14YF2) and case WH9DM: with charger (UC14YF2) and case
NAME OF PARTS
1. Cordless Impact Driver
Switch Trigger
䡬 Battery
Terminal Hole
Nameplate
10
Latch
Handle
Housing
Fig. 1
Nameplate
Air Vents
Push Button
Convenient Hook
Battery
Nameplate
Terminal Hole
Latch
EB9BEB1220BL
2. Battery Charger (UC14YF2)
English
Pilot Lamp
Cord
Battery Installation Hole
Caution Plate
Body
Nameplate
Fig. 2
SPECIFICATIONS
1. Cordless Impact Driver
Model WH9DM WH12DM
(9.6 V) (12 V) No-load speed 0 – 2300/min Capacity 5/32" (4 mm) – 5/16" (8 mm)(Small screw)
3/16" (M5) – 15/32" (M12)(Ordinary bolt)
3/16" (M5) – 3/8" (M10) (High tension bolt)
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 3.0 lbs (1.4 kg) 3.5 lbs (1.6 kg)
Maximum 840 in-lbs
{95 N·m 970 kgf·m} 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
Maximum 885 in-lbs
{100 N·m 1020 kgf·m} Tightening is 15/32" (M12) high tension bolt, when fully charged at 68°F (20°C) temp. Tightening time: 3 sec.
2. Battery Charger (UC 14YF2)
Input power source Single phase: AC120V 60Hz Charging time Approx. 60min. (At a temperature of 68°F (20°C))
Charger
Weight 2.9 lbs (1.3kg)
Charging voltage .......................... DC 7.2–14.4V
Charging current........................... DC 1.9A
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ASSEMBLY AND OPERATION
APPLICATIONS
䡬 Driving and removing of small screws, small bolts, etc.
REMOVAL AND INSTALLATION METHOD OF BATTERY
䡬 How to install the battery.
Align the battery with the groove in tool
Handle
Latch
Insert
Rechargeable battery
Pull out
Fig. 3
CHARGING METHOD
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)
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.
Battery
Battery installation hole
Pilot lamp
Fig. 4
12
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.
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.
Table 2
Indications of the pilot lamp
Before charging
While charging
Charging complete
Charging impossible
Charging impossible
Blinks (RED)
Lights (RED)
Blinks (RED)
Flikers (RED)
Lights (GREEN)
Lights for 0.5 seconds. Does not light for
0.5 seconds. (off for 0.5 seconds)
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
EB9B, EB1220BL
Temperatures at which the battery can be recharged 23°F—140°F
(–5°C—60°C)
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(3) Regarding recharging time (At 68°F (20°C))
In approx. 60 minutes.
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.
● 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 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.
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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 convenient hook
The convenient 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 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°). 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.
● Incomplete installation of the hook may result in bodily injury when used.
(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)
Convenient hook
Fig. 5
Fig. 6
Spring
NOTE:
Pay attention to the spring orientation. Install the spring with larger diameter away from you.
(Fig. 8) (3) Using the bit holder 䡬 Installing the bit
Slide the bit from the side in the direction of Fig. 9, and then insert firmly until the groove on the pit locks in the protruded section of the hook.
䡬 Removing the bit
Securely hold the main unit and pull out the bit by holding the tip with your thumb. (Fig. 10)
Fig. 7
Larger diameter faces away
Fig. 8
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English
R
CAUTION:
● The bit may come loose from the hook and cause bodily injury when reversing the direction of the bit as shown in Fig. 9 or when using the driver with the bit stored incomplete.
● Only Hitachi OPTIONAL ACCESSORIES plus driver bits (Bit No. 2; Code No. 992671, Bit No. 3; Code No.
992672) may be used. Do not use other bits since they may come loose.
Groove
Protruded section
Fig. 9
2. Installing the bit
Always follow the following procedure to install driver bit. (Fig. 11)
(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
Please do the opposite point on the method of installing bit.
4. Confirm that the battery is mounted correctly.
5. 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. 12). (The and
marks are engraved on the body.)
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.
Driver bit
Hexagonal hole in the anvil
R
Push
Fig. 10
Movement
Guide sleeve
Fig. 11
Push button
L
Push
6. 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.
Fig. 12
NOTE
A buzzing noise is produced when the motor is about to rotate; this is only a noise, not a machine failure.
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English
7. 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.
8. Number of screw tightenings possible
Please refer to the table below for the number of screw tightenings possible with one charge.
<WH12DM> (EB1220BL)
Screw used No. of tightenings Wood screw 5/32" × 2"
(Soft wood) (ø4 × 50) Machine screw
5/16" x 5/8" (M8 × 16)
Appro. 580
Appro. 1230
<WH9DM> (EB9B)
Screw used No. of tightenings Wood screw 5/32" × 2"
(Soft wood) (ø4 x 50) Machine screw
5/16" x 5/8" (M8 x 16)
These values may vary slightly, according to surrounding temperature and battery characteristics.
Appro. 390
Appro. 1030
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 hammer case, as it gets very hot during continuous
work.
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English
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.
3. Tightening torque
Refer to Fig. 13 and 14 for the tightening torque of bolts (according to size), under the conditions shown in Fig. 15. 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.
<For WH12DM>
kgf·cm (in-lbs) (M8×30)
1000
(868)
800
(694)
600
(521)
400
(347)
Tightening torque
200
(174)
0
Tightening time: sec (Steel plate thickness
t = 3/8" (10 mm))
18
5/16"×1-3/6"
N·m
100
80
High strenge bolt
60
40
20
0
0
1 2 3
kgf·cm (in-lbs) (M10×30)
1000
(868)
800
(694)
600
(521)
400
(347)
Tightening torque
200
(174)
0
N·m
100
High strenge bolt
80
60
40
20
0
0
3/8"×1-3/6"
Ordinary bolt
1 2 3
Tightening time: sec (Steel plate thickness
t = 3/8" (10 mm))
Fig. 13
kgf·cm (in-lbs) (M12×45)
1200
(1042)
1000
(868)
800
(694)
600
(521)
400
(347)
Tightening torque
200
(174)
0
15/32"×1-3/4"
N·m
120
High strenge bolt
100
80
60
Ordinary bolt
40
20
0
0 1 2 3
Tightening time: sec (Steel plate thickness
t = 3/8" (10 mm))
<For WH9DM>
English
kgf·cm (in-lbs) (M8×30)
1000
(868)
800
(694)
600
(521)
400
(347)
Tightening torque
200
(174)
0
N·m
100
80
High strenge bolt
60
40
20
0
0
5/16"×1-3/6"
Ordinary bolt
1 2 3
Tightening time: sec (Steel plate thickness
t = 3/8" (10 mm))
Bolt
Nut
(in-lbs) (M10×30)
Tightening torque
Steel plate thickness t
kgf·cm
N·m
100
1000
(868)
80
800
(694)
60
600
(521)
40
400
(347)
20
200
(174)
0
0
0
Tightening time: sec (Steel plate thickness
t = 1" (25 mm))
Fig. 14
()
3/8"×1-3/6"
High strenge bolt
Ordinary bolt
1 2 3
kgf·cm
(in-lbs) (M12×45)
1200
(1042)
1000
(868)
800
(694)
600
(521)
400
(347)
Tightening torque
200
(174)
0
15/32"×1-3/4"
N·m
120
High strenge bolt
100
80
60
40
Ordinary bolt
20
0
0 1 2 3
Tightening time: sec (Steel plate thickness
t = 1" (25 mm))
*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. 15
2
)
2
)
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English
MAINTENANCE AND INSPECTION
CAUTION: Pull out battery before doing any inspection or maintenance.
1. Checking the condition of the bit.
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. 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.
3. Maintenance of the motor
The motor unit winding is the very “heart” of the power tool. Exercise due care to ensure the winding does not become damaged and/or wet with oil or water.
4. Inspecting the carbon brushes (Fig. 16)
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.
NOTE:
When replacing the carbon brush with a new one, be sure to use the Hitachi Carbon Brush Code No.
999054.
(11.5mm)
Wear limit
0.12" (3mm)
0.45"
Fig. 16
Nail of carbon brush
Protrusion of carbon brush
Fig. 17
5. 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. 18. 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. 19. Lastly, install the brush cap.
20
Fig. 18
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.
English
Contact portion outside brush tube
6. 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.
Fig. 19
7. 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.
8. Storage
Storing in a place below 104°F (40°C) and out of the reach of children.
9. 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.
10.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 (i.e. code numbers and/or design) may be changed without prior notice.
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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
1
2
1 Battery Charger (UC14YF2) .......................... 1
2 Plastic Case (Code No. 319924) ................... 1
Fig. 20
OPTIONAL ACCESSORIES.....sold separately
1. Battery
EB1220BL (Code No. 320386) EB9B (Code No. 310451)
Fig. 21
22
2. Phillips bit
2" (50 mm)
Fig. 22
3. Hexagonal socket
English
Bit No. Code No.
No. 2 992671 No. 3 992672
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) 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
14 65 14 996180
Engraved characters
Fig. 23
L B Code No.
4. Wood working drill bit: Code No. 959183
35/64”
(14 mm)
3-17/64” (83 mm)
Fig. 24
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