Hitachi DV 20VB User Manual
MODEL HAMMER DRILL
MODÈLE MARTEAU PERFORATEUR
MODELO MARTILLO ROTO-PERCUTOR
DV 20VB
INSTRUCTION MANUAL AND SAFETY INSTRUCTIONS
WARNING
Improper and 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 others before they use the power tool.
MODE D’EMPLOI ET INSTRUCTIONS DE SECURITE
AVERTISSEMENT
Une utilisation incorrecte et 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 avant
qu’ils utilisent l’outil motorisé.
MANUAL DE INSTRUCCIONES E INSTRUCCIONES DE SEGURIDAD
ADVERTENCIA
¡La utilización inapropiada e insegura de esta herramienta eléctrica puede resultar
en lesiones serias o en 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 que utilicen la
herramienta eléctrica.
DOUBLE INSULATION
DOUBLE ISOLATION
AISLAMIENTO DOBLE
English
IMPORTANT INFORMATION ............. 3
MEANINGS OF SIGNAL WORDS ...... 3
SAFETY ................................................... 4
GENERAL SAFETY RULES ................. 4
SPECIFIC SAFETY RULES AND SYMBOLS ......
DOUBLE INSULATION FOR SAFER
OPERATION ..................................... 8
FUNCTIONAL DESCRIPTION ................ 9
NAME OF PARTS ................................ 9
SPECIFICATIONS ................................ 9
CONTENTS
Page
ASSEMBLY AND OPERATION ............ 10
APPLICATIONS ................................. 10
PRIOR TO OPERATION ..................... 10
HOW TO USE .................................... 13
7
MAINTENANCE AND INSPECTION .... 14
ACCESSORIES ...................................... 15
STANDARD ACCESSORIES ............. 15
OPTIONAL ACCESSORIES ............... 15
Page
Français
INFORMATIONS IMPORTANTES ....... 16
SIGNIFICATION DES MOTS
D’AVERTISSEMENT ......................... 16
SECURITE ............................................. 17
REGLES GENERALES DE SECURITE
REGLES DE SECURITE SPECIFIQUES ET SYMBOLES ...
DOUBLE ISOLATION POUR UN
FONCTIONNEMENT PLUS SUR
DESCRIPTION FONCTIONNELLE ........ 22
NOM DES PARTIES .......................... 22
SPECIFICATIONS .............................. 22
Español
INFORMACIÓN IMPORTANTE ............ 29
SIGNIFICADO DE LAS PALABRAS DE
SEÑALIZACIÓN ................................. 29
SEGURIDAD ......................................... 30
NORMAS GENERALES DE SEGURIDAD ....
NORMAS Y SÍMBOLOS ESPECÍFICOS DE SEGURIDAD
AISLAMIENTO DOBLE PARA OFRECER UNA
OPERACIÓN MÁS SEGURA .........................
DESCRIPCIÓN FUNCIONAL ................ 35
NOMENCLATURA ............................. 35
ESPECIFICACIONES .......................... 35
TABLE DES MATIERES
Page
....
17
20
........ 21
ÍNDICE
Página
30
..... 33
34
Page
ASSEMBLAGE ET FONCTIONNEMENT ....
APPLICATIONS ................................. 23
AVANT L’UTILISATION .................... 23
UTILISATION ..................................... 26
ENTRETIEN ET INSPECTION............... 27
ACCESOIRES ........................................ 28
ACCESSOIRES STANDARD ............. 28
ACCESSOIRES EN OPTION ............. 28
Página
MONTAJE Y OPERACIÓN ................... 36
APLICACIONES ................................. 36
ANTES DE LA OPERACIÓN .............. 36
COMO SE USA .................................. 39
MANTENIMIENTO E INSPECCIÓN ..... 40
ACCESORIOS ....................................... 41
ACCESORIOS ESTÁNDAR ............... 41
ACCESORIOS OPCIONALES ............ 41
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English
IMPORTANT INFORMATION
Read and understand all of the operating instructions, safety precautions and warnings in
the Instruction Manual before operating or maintaining this power tool.
Most accidents that result from power tool operation and maintenance are caused by the
failure to observe basic safety rules or precautions. An accident can often be avoided by
recognizing a potentially hazardous situation before it occurs, and by observing appropriate
safety procedures.
Basic safety precautions are outlined in the “SAFETY” section of this Instruction Manual and
in the sections which contain the operation and maintenance instructions.
Hazards that must be avoided to prevent bodily injury or machine damage are identified by
WARNINGS on the power tool and in this Instruction Manual.
Never use this power tool in a manner that has not been specifically recommended by
HITACHI, unless you first confirm that the planned use will be safe for you and others.
MEANINGS OF SIGNAL WORDS
WARNING indicates a potentially hazardous situations which, if ignored, could result in
serious personal injury.
CAUTION indicates a hazardous situations which, if ignored, could result in moderate
personal injury, or could cause machine damage.
NOTE emphasizes essential information.
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SAFETY
GENERAL SAFETY RULES
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) Double Insulated tools are equipped with a polarized plug (one blade is wider than
the other.) This plug will fit in a polarized outlet only one way. If the plug does not
fit fully in the outlet, reverse the plug. If it still does not fit, contact a qualified
electrician to install a polarized outlet. Do not change the plug in any way. Double
Insulation
grounded power supply system.
(2) Avoid body contact with grounded surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric shock if your body is grounded.
(3) Do not expose power tools to rain or wet conditions. Water entering a power tool will
increase the risk of electric shock.
(4) Do not abuse the cord. Never use the cord to carry the tools or pull the plug from a
receptacle. Keep cord away from heat, oil, sharp edges or moving parts. Replace
damaged cords immediately. Damaged cords increase the risk of electric shock.
(5) When operating a power tool outside, use an outdoor extension cord marked “W-A”
or “W”. These cords are rated for outdoor use and reduce the risk of electric shock.
3. Personal Safety
(1) Stary 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 before plugging in. Carrying tools with
your finger on the switch or plugging in tools that have the switch on invites accidents.
eliminates the need for the three wire grounded power cord and
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(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 enables better control of the tool in unexpected situations.
(6) Use safety equipment. Always wear protective grasses. Dust mask, nonskid safety
shoes, hard hat, or ear plugs 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
lose 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 the plug form the power source before making any adjustments,
changing accessories, or storing the tool. 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 hand of untrained users.
(6) 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.
(7) 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.
(8) 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.
6. Never touch moving parts.
Never place your hands, fingers or other body parts near the tool’s moving parts.
7. 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.
8. 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.
9. 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.
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10. 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.
11. Keep all screws, bolts and covers tightly in place.
Keep all screws, bolts, and plates tightly mounted. Check their condition periodically.
12. 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.
13. 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.
14. Keep motor air vent clean.
The tool’s motor air vent must be kept clean so that air can freely flow at all times. Check
for dust build-up frequently.
15. Operate power tools at the rated voltage.
Operate the power tool at voltages specified on its nameplate.
If using the power tool at a higher voltage than the rated voltage, it will result in
abnormally fast motor revolution and may damage the unit and the motor may burn out.
16. 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.
17. Never leave tool running unattended. Turn power off.
Don’t leave tool until it comes to a complete stop.
18. Carefully handle power tools.
Should a power tool be dropped or struck against hard materials inadvertently, it may be
deformed, cracked, or damaged.
19. 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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SPECIFIC SAFETY RULES AND SYMBOLS
1. Hold tools by insulated gripping surfaces when performing an operation where the
cutting tool may contact hidden wiring or its own cord. Contact with a “live” wire will
make exposed metal parts of the tool “live” and shock the operator.
2. Wear ear plugs when using the tool for extended periods. Prolonged exposure to high
intensity noise can cause hearing loss.
3. NEVER touch the tool bit with bare hands after operation.
4. NEVER wear gloves made of stuff liable to roll up such as cotton, wool, cloth or string,
etc.
5. ALWAYS attach the side handle and securely grip the Hammer Drill.
6. ALWAYS be careful with buried object such as an underground wiring.
Touching these active wiring or electric cable with this tool, you may receive an electric
shock.
Confirm if there are any buried object such as electric cable within the wall, floor or ceiling
where you are going to operate here after.
7. Definitions for symbols used on this tool
V ............. volts
Hz ........... hertz
A .............amperes
no ........... no load speed
W ............watt
............ Class II Construction
---/min .... revolutions per minute
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DOUBLE INSULATION FOR SAFER OPERATION
To ensure safer operation of this power tool, HITACHI has adopted a double insulation
design. “Double insulation “ means that two physically separated insulation systems have
been used to insulate the electrically conductive materials connected to the power supply
from the outer frame handled by the operator. Therefore, either the symbol “
and “Double insulation” appear on the power tool or on the nameplate.
Although this system has no external grounding, you must still follow the normal electrical
safety precautions given in this Instruction Manual, including not using the power tool in wet
environments.
To keep the double insulation system effective, follow these precautions:
䡬 Only HITACHI AUTHORIZED SERVICE CENTER should disassemble or assemble this
power tool, and only genuine HITACHI replacement parts should be installed.
䡬 Clean the exterior of the power tool only with a soft cloth moistened with soapy water,
and dry thoroughly.
Never use solvents, gasoline or thinners on plastic components; otherwise the plastic
may dissolve.
” or the words
SAVE THESE INSTRUCTIONS
AND
MAKE THEM AVAILABLE TO
OTHER USERS OF THIS TOOL!
8
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.
Some illustrations in this Instruction Manual may show details or attachments that differ
from those on your own power tool
NAME OF PARTS
Drill chuck with chuck wrench
Depth gauge
Side handle
Gear shift
dial
Fig. 1
Change lever
Reversing
switch lever
Switch
Housing
SPECIFICATIONS
Motor Single Phase, Series Commutator Motor
Power source Single Phase 115V AC 60 Hz
Current 6.8 A
Reversible Yes
Speed change 1 2
No-load speed 0–1100/min 0–2600/min
Drill chuck capacity 1/2" (13mm)
Steel 1/2" (13mm) 5/16" (8mm)
Capacity Concrete 3/4" (20mm) 1/2" (13mm)
Wood 1-9/16" (40mm) 1" (25mm)
No-load impact rate 14000/min 36000/min
Weight (Without Cord)
Spec.for chuck with chuck wrench: 4.6 lbs (2.1 kg)
Spec.for keyless chuck: 5.1 lbs (2.3 kg)
Handle cover
Stopper
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ASSEMBLY AND OPERATION
APPLICATIONS
䡬 By combined actions of ROTATION and IMPACT:
Boring holes in hard surfaces (concrete, marble, granite, tiles, etc.)
䡬 By ROTATIONAL action:
Boring holes in metal, wood and plastic.
PRIOR TO OPERATION
1. Power source
Ensure that the power source to be utilized conforms to the power source requirements
specified on the product nameplate.
2. Power switch
Ensure that the switch is in the OFF position. If the plug is connected to a receptacle while
the switch is in the ON position, the power tool will start operating immediately and can
cause serious injury.
3. Extension cord
When the work area is far away from the power source, use an extension cord of sufficient
thickness and rated capacity. The extension cord should be kept as short as practicable.
WARNING: Damaged cord must be replaced or repaired.
4. Check the receptacle
If the receptacle only loosely accepts the plug, the receptacle must be repaired. Contact
a licensed electrician to make appropriate repairs.
If such a fautly receptacle is used, it may cause overheating, resulting in a serious hazard.
5. Confirming condition of the environment:
Confirm that the work site is placed under appropriate conditions conforming to
prescribed precautions.
6. Selecting the appropriate drill bit:
䡬 When boring concrete or stone
Use the drill bits specified in the Optional Accessories.
䡬 When boring metal or plastic
Use an ordinary metalworking drill bit.
䡬 When boring wood
Use an ordinary woodworking drill bit.
However, when drilling 1/4" (6.5 mm) or smaller holes, use a metalworking drill bit.
7. Mounting and dismounting of the bit.
For Drill chuck with chuck wrench (Fig. 2)
Fit the drill bit into the chuck and use the chuck wrench to secure it, tightening the chuck
by each of the three holes in turn.
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U
CK
For keyless chuck (Fig. 3, 4)
(1) Mounting the bit
Turn the lock collar in the direction "UNLOCK" and open the chuck. After inserting the drill
bit into the chuck as far it will go, turn the lock collar in the "LOCK" direction. Grip the
retaining ring and close the chuck by turning the sleeve clockwise as viewed from the front.
(2) Dismounting the bit
Turn the lock collar in the direction "UNLOCK" to release the chucking force. Grip the
retaining ring and open the chuck by turning the sleeve counterclockwise.
NOTE
When the sleeve does not become loose any further, fix the side handle to retaining
ring, hold side handle firmly, then turn the sleeve to loosen by hand.
Chuck
wrench
Drill chuck
Fig. 2
Lock collar
LOCK
➤
UNLOCK
➤
Fig. 4
8. Fixing the side handle (Fig. 6)
Loosen the knob bolt on the side handle,
and attach the side handle to the gear
cover in a position convenient for drilling.
Match the projecting part of the handle to
the groove on the gear cover, and firmly
tighten the knob bolt. To remove the side
handle, loosen the knob bolt and rotate
the handle.
To attach a depth gauge on the side
handle, insert the gauge into the U-shaped
Depth
gauge
Side
handle
Side
handle
Sleeve
Lock collar
Retaining
ring
Fig. 3
Retaining ring
Sleeve
Fig. 5
Knob bolt
Fig. 6
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groove on the side handle, adjust the position of the depth gauge in accordance with the
desired depth of the hole, and firmly tighten the wing bolt.
9. IMPACT to ROTATION changeover (Fig. 7)
The Hammer Drill can be switched from IMPACT (impact plus rotation) to ROTATION
(rotation only) by rotating the change lever (Fig. 1). When boring concrete, stone, tile or
similar hard materials, rotating the change lever to IMPACT side. The drill head impacts
against the material while continuing to rotate.
When boring metal, wood or plastic, rotating the change lever to ROTATION side. The
drill rotates as an ordinary electric drill.
Change lever
Impact Rotation
Fig. 7
CAUTION
Do not use the Hammer Drill in the IMPACT function if the material can be bored by
rotation only. Such action will not only reduce drill efficiency, but may also damage the
drill tip.
NOTE
The change lever may not rotate smoothly when changing from hammer drill mode to
drill mode (Fig. 7).
In this case, swith ON and operate the machine for few seconds. The spindle shaft will
then be pushed forward, and the change lever can be moved smoothly.
10. High-speed/Low-speed changeover
To change speed, rotate the gear shift
dial as indicated by the arrow in Fig. 8.
The numeral "1" engraved on the drill
body denotes low speed, the numeral
"2" denotes high speed.
11. Confirm the direction of bit
rotation
The bit rotates clockwise (viewed from
the rear side) by pushing the R-side of
the reversing switch lever.
The L-side of the lever is pushed to
turn the bit counterclockwise. (Fig. 9)
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Gear shift
dial
Fig. 8
English
CAUTION
Never change the direction of bit rotation while operating. Turn the power switch OFF
before changing the direction of bit rotation: otherwise, burning of the motor will
result.
Always use the hammer drill with clockwise rotation, when using it as an hammer
drill. (Fig. 10)
Reversing
switch lever
Fig. 9
HOW TO USE
CAUTION:
To prevent accidents, make sure to turn the switch off and disconnect the plug from the
receptacle when the drill bits and other various parts are installed or removed. The
power switch should also be turned off during a work break and after work.
Fig. 10
1. Operation of switch
䡬 The drill speed can be adjusted from O through full speed by regulating the trigger-
squeezing force. The more the trigger is squeezed, the faster the drill rotates. When the
trigger is squeezed fully, the speed is the maximum.
䡬 Pulling the trigger and pushig the stopper, it keeps the switched-on condition which is
convenient for continuous running. When switching off, the stopper can be disconnected
by pulling the trigger again.
2. When using as a Drill or a Hammer Drill
(1) Pressing force of the drill
You cannot drill holes more quickly even if you press the drill with a stronger force than
necessary. It not only damages tip of drill bits and decreases the efficiency of operation,
but also shortens the life of the drill.
(2) In case of penetrating holes
Drill bits can be broken when the material being drilled is penetrated. It is important to
decrease pressing force just before penetrating.
CAUTION
In continuous operation, conduct no-load operation for five seconds after completing a
drilling job.
(3) When a thick drill bit is used
Your arm is subjected to larger reaction force when a thicker drill bit is used. Be careful
not to be moved by the reaction force. For this, establish a foothold, hodl the unit tightly
with both hands perpendicularly to the material being drilled.
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MAINTENANCE AND INSPECTION
WARNING: Be sure to switch power OFF and disconnect the plug from the receptacle
during maintenance and inspection.
1. Inspecting the drill bits
Since use of a dull tool will cause motor malfunctioning and degraded efficiency, replace
the drill bit with a new one or resharpening without delay when abrasion is noted.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that they are properly tightened.
Should any of the screws be loosened, retighten them immediately.
WARNING: Using this hammer drill with loosen screws is extremely dangerous.
3. Keeping after use
When not in use, the Power tool should be kept in a dry place out of the reach of children.
4. Inspecting the carbon brushes
For your continued safety and electrical shock protection, carbon brush inspection and
replacement on this tool should ONLY be performed by a HITACHI AUTHORIZED
SERVICE CENTER.
5. Maintenance of the motor
The motor unit winding is the very “heart”’ of the power tool. Exercise due care to ensure
the winding does not become damaged and/or wet with oil or water.
6. Service 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.
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