Hitachi DH28PD Manuel utilisateur
- Catégorie
- Marteaux rotatifs
- Taper
- Manuel utilisateur
Ce manuel convient également à
DOUBLE INSULATION
DOUBLE ISOLATION
AISLAMIENTO DOBLE
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.
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.
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.
DH 28PD
Model Rotary Hammer
Modèle Marteau rotatif
Modelo Martillo perforador
01Eng_DH28PD_US 10/2/09, 15:321
CONTENTS
English
Page
IMPORTANT SAFETY INSTRUCTIONS
... 3
MEANINGS OF SIGNAL WORDS ...... 3
SAFETY ................................................... 3
GENERAL POWER TOOL SAFETY
WARNINGS ...................................... 3
SPECIFIC SAFETY RULES AND SYMBOLS
..... 4
DOUBLE INSULATION FOR SAFER
OPERATION ..................................... 5
FUNCTIONAL DESCRIPTION ................ 7
NAME OF PARTS ................................ 7
SPECIFICATIONS ................................ 8
Page
ASSEMBLY AND OPERATION .............. 8
APPLICATIONS ................................... 8
PRIOR TO OPERATION ....................... 8
HOW TO USE .................................... 10
HOW TO USE THE CORE BIT (FOR LIGHT LOAD)
... 14
MAINTENANCE AND INSPECTION .... 16
ACCESSORIES ...................................... 18
STANDARD ACCESSORIES ............. 18
OPTIONAL ACCESSORIES ............... 18
PARTS LIST .......................................... 66
TABLE DES MATIERES
Français
Page
CONSIGNES DE SÉCURITÉ IMPORTANTES
... 23
SIGNIFICATION DES MOTS
D’AVERTISSEMENT ......................... 23
SECURITE ............................................. 23
AVERTISSEMENTS DE SÉCURITÉ GÉNÉRAUX
CONCERNANT LES OUTILS ÉLECTRIQUES ..
23
REGLES DE SECURITE SPECIFIQUES ET SYMBOLES
... 25
DOUBLE ISOLATION POUR UN
FONCTIONNEMENT PLUS SUR
........ 26
DESCRIPTION FONCTIONNELLE ........ 27
NOM DES PARTIES .......................... 27
SPECIFICATIONS .............................. 28
Page
ASSEMBLAGE ET FONCTIONNEMENT ....
28
APPLICATIONS ................................. 28
AVANT L’UTILISATION .................... 28
UTILISATION ..................................... 30
COMMENT UTILISER LA COURONNE (POUR
UNE CHARGE LEGERE)
.........................
35
ENTRETIEN ET INSPECTION ............... 37
ACCESSOIRES ...................................... 39
ACCESSOIRES STANDARD ............. 39
ACCESSOIRES SUR OPTION ........... 39
LISTA DES PIÈCES ............................... 66
ÍNDICE
Español
Página
INSTRUCCIONES IMPORTANTES SOBRE SEGURIDAD
... 44
SIGNIFICADO DE LAS PALABRAS DE
SEÑALIZACIÓN ................................. 44
SEGURIDAD ......................................... 44
ADVERTENCIAS DE SEGURIDAD GENERAL
DE LA HERRAMIENTA ELÉCTRICA .............
44
NORMAS Y SÍMBOLOS ESPECÍFICOS DE SEGURIDAD
..... 46
AISLAMIENTO DOBLE PARA OFRECER UNA
OPERACIÓN MÁS SEGURA
................... 47
DESCRIPCIÓN FUNCIONAL ................ 48
NOMENCLATURA ............................. 48
ESPECIFICACIONES .......................... 49
Página
MONTAJE Y OPERACIÓN ................... 49
APLICACIONES ................................. 49
ANTES DE LA OPERACIÓN .............. 49
COMO SE USA .................................. 51
MODO DE USAR LA BARRENA TUBULAR
(PARA CARGAS LIGERAS)
................ 56
MANTENIMIENTO E INSPECCIÓN ..... 58
ACCESORIOS ....................................... 60
ACCESORIOS ESTÁNDAR ............... 60
ACCESORIOS OPCIONALES ............ 60
LISTA DE PIEZAS ................................. 66
01Eng_DH28PD_US 10/2/09, 15:322
3
English
IMPORTANT SAFETY INSTRUCTIONS
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.
SAFETY
GENERAL POWER TOOL SAFETY WARNINGS
WARNING:
Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated
(cordless) power tool.
1) Work area safety
a) Keep work area clean and well lit.
Cluttered or dark areas invite accidents.
b) 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 or fumes.
c) Keep children and bystanders away while
operating a power tool.
Distractions can cause you to lose control.
2) Electrical safety
a) Power tool plugs must match the outlet.
Never modify the plug in any way.
Do not use any adapter plugs with earthed
(grounded) power tools.
Unmodified plugs and matching outlets will
reduce risk of electric shock.
b) Avoid body contact with earthed or grounded
surfaces such as pipes, radiators, ranges and
refrigerators.
There is an increased risk of electric shock if
your body is earthed or grounded.
c) Do not expose power tools to rain or wet
conditions.
Water entering a power tool will increase the
risk of electric shock.
d) Do not abuse the cord. Never use the cord for
carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges
or moving parts.
Damaged or entangled cords increase the risk
of electric shock.
e) When operating a power tool outdoors, use
an extension cord suitable for outdoor use.
Use of a cord suitable for outdoor use reduces
the risk of electric shock.
f) If operating a power tool in a damp location
is unavoidable, use a residual current device
(RCD) protected supply.
Use of an RCD reduces the risk of electric shock.
3) Personal safety
a) Stay alert, watch what you are doing and use
common sense when operating a power tool.
Do not use a power tool while you are tired
or under the influence of drugs, alcohol or
medication.
01Eng_DH28PD_US 11/10/10, 14:453
4
English
A moment of inattention while operating power
tools may result in serious personal injury.
b) Use personal protective equipment. Always
wear eye protection.
Protective equipment such as dust mask, non-
skid safety shoes, hard hat, or hearing
protection used for appropriate conditions
will reduce personal injuries.
c) Prevent unintentional starting. Ensure the
switch is in the off-position before connecting
to power source and/or battery pack, picking
up or carrying the tool.
Carrying power tools with your finger on the
switch or energising power tools that have
the switch on invites accidents.
d) Remove any adjusting key or wrench before
turning the power tool on.
A wrench or a key left attached to a rotating part
of the power tool may result in personal injury.
e) Do not overreach. Keep proper footing and
balance at all times.
This enables better control of the power tool
in unexpected situations.
f) Dress properly. Do not wear loose clothing
or jewellery. Keep your hair, clothing and
gloves away from moving parts.
Loose clothes, jewellery or long hair can be
caught in moving parts.
g) If devices are provided for the connection of
dust extraction and collection facilities, ensure
these are connected and properly used.
Use of dust collection can reduce dust-related
hazards.
4) Power tool use and care
a) Do not force the power tool. Use the correct
power tool for your application.
The correct power tool will do the job better
and safer at the rate for which it was designed.
b) Do not use the power tool if the switch does
not turn it on and off.
Any power tool that cannot be controlled with
the switch is dangerous and must be repaired.
c) Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing
accessories, or storing power tools.
Such preventive safety measures reduce the
risk of starting the power tool accidentally.
d) Store idle power tools out of the reach of
children and do not allow persons unfamiliar
with the power tool or these instructions to
operate the power tool.
Power tools are dangerous in the hands of
untrained users.
e) Maintain power tools. Check for
misalignment or binding of moving parts,
breakage of parts and any other condition
that may affect the power tool’s operation.
If damaged, have the power tool repaired
before use.
Many accidents are caused by poorly
maintained power tools.
f) Keep cutting tools sharp and clean.
Properly maintained cutting tools with sharp
cutting edges are less likely to bind and are
easier to control.
g) Use the power tool, accessories and tool bits
etc. in accordance with these instructions,
taking into account the working conditions
and the work to be performed.
Use of the power tool for operations different
from those intended could result in a
hazardous situation.
5) Service
a) Have your power tool serviced by a qualified
repair person using only identical
replacement parts.
This will ensure that the safety of the power
tool is maintained.
ROTARY HAMMER SAFETY WARNINGS
1. Wear ear protectors.
Exposure to noise can cause hearing
loss.
2. Use auxiliary handles, if supplied with the tool.
Loss of control can cause personal injury.
3. Hold power tools by insulated gripping surfaces,
when performing an operation where the cutting
tool may contact hidden wiring or its own cord.
Cutting accessory contacting a “live” wire may
make exposed metal parts of the power tool “live”
and could give the operator an electric shock.
4. NEVER touch the tool bit with bare hands after
operation.
5. NEVER wear gloves made from materials likely to
roll up such as cotton, wool, cloth or string, etc.
6. ALWAYS attach the side handle and securely grip
the Rotary Hammer.
7. NEVER touch moving parts.
NEVER place your hands, fingers or other body
parts near the tool’s movinkpparts.
8. 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.
9. 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.
01Eng_DH28PD_US 11/10/10, 14:454
5
English
10. 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.
11. 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.
12. Keep all screws, bolts and covers tightly in place.
Keep all screws, bolts, and plates tightly mounted.
Check their condition periodically.
13. 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.
14. Blades and accessories must be securely mounted
to the tool.
Prevent potential injuries to yourself or others.
Blades, cutting implements and accessories which
have been mounted to the tool should be secure
and tight.
15. 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.
16. 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.
17. 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.
18. NEVER leave tool running unattended. Turn power
off.
Don’t leave tool until it comes to a complete stop.
19. Carefully handle power tools.
Should a power tool be dropped or struck against
hard materials inadvertently, it may be deformed,
cracked, or damaged.
20. 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.
21. ALWAYS wear eye protection that meets the
requirement of the latest revision of
ANSI Standard Z87.1.
22. ALWAYS be careful with buried object such as an
underground wiring.
Touching live wiring or electric cable with this tool
may result in electric shock.
Confirm before use whether hidden objects are
present, such as electric cables within the wall,
floor or ceiling.
23. 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
............. Alternating current
DOUBLE INSULATION FOR SAFER
OPERATION
To ensure safer operation of this power tool, HITACHI
has adopted a double insulation design. “Double
insulation” means that two physically separated
insulation systems have been used to insulate the
electrically conductive materials connected to the power
supply from the outer frame handled by the operator.
Therefore, either the symbol “ ” or the words “Double
insulation” appear on the power tool or on the
nameplate.
Although this system has no external grounding, you
must still follow the normal electrical safety precautions
given in this Instruction Manual, including not using the
power tool in wet environments.
To keep the double insulation system effective, follow
these precautions:
䡬
Only Hitachi Authorized Service Center should
disassemble or assemble this power tool, and only
genuine HITACHI replacement parts should be
installed.
䡬
Clean the exterior of the power tool only with a
soft cloth moistened with soapy water, and dry
thoroughly.
Never use solvents, gasoline or thinners on plastic
components; otherwise the plastic may dissolve.
01Eng_DH28PD_US 11/10/10, 14:455
6
English
SAVE THESE INSTRUCTIONS
AND
MAKE THEM AVAILABLE TO
OTHER USERS
AND
OWNERS OF THIS TOOL!
01Eng_DH28PD_US 10/2/09, 15:326
7
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.
NAME OF PARTS
Drill bit
Fig. 1
Stopper
Front cap
Grip
Nameplate
Change lever
Push button
Switch
Handle
Housing
Tail cover
Brush cap
(inside the tail cover)
Set screw
(under the tail cover)
Side handle
Dust collecting
unit
Dust box
01Eng_DH28PD_US 10/2/09, 15:327
8
English
APPLICATIONS
Rotation and hammering function
䡬
Drilling anchor holes
䡬
Drilling holes in concrete
䡬
Drilling holes in tile
Rotation only function
䡬
Drilling in steel or wood (with optional
accessories).
䡬
Tightening machine screws, wood screws (with
optional accessories).
Hammering only function
䡬
Light-duty chiselling of concrete, groove digging
and edging.
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.
ASSEMBLY AND OPERATION
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 faulty 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. Mounting the drill bit (Fig. 2)
CAUTION:
To prevent accidents, make sure to turn the switch
off and disconnect the plug from the receptacle.
SPECIFICATIONS
Motor Single-Phase, Series Commutator Motor
Power Source Single-Phase, 120 V 60 Hz
Current 6.3 A
Capacity Concrete: 5/32" – 1-1/8" (4 mm – 28 mm)
Steel: 1/2" (13 mm)
Wood: 1-1/4" (32 mm)
No-Load Speed 0 – 1,050 / min.
Full-load Impact Rate 0 – 4,000 / min.
Weight 10.4 lbs (4.7 kg)
Dust collecting adapter
Max. hole-drilling depth: 3-11/32" (85 mm) (adjustment possible between 0 and 3-11/32" (85 mm))
Diameter of drill: 5/32" – 23/32" (4 – 18 mm)
Max. length of drill: 3-15/16" (100 mm)
(effective length)
Dust box capacity: 0.1 gallon (0.4 liters)
01Eng_DH28PD_US 10/2/09, 15:328
9
English
NOTE:
When using tools such as bull points, drill bits, etc.,
make sure to use the genuine parts designated by
our company.
(1) Clean the shank portion of the drill bit.
(2) Insert the drill bit in a twisting manner into the tool
holder until it latches itself. (Fig. 2)
(3) Check the latching by pulling on the drill bit.
(4) To remove the drill bit, fully pull the grip in the
direction of the arrow and pull out the drill bit. (Fig.
3)
7. Installation of dust cup or dust collector (B)
(Optional accessories) (Fig. 4, Fig. 5)
When using a rotary hammer for upward drilling
operations attach a dust cup or dust collector (B) to
collect dust or particles for easy operation.
䡬
Installing the dust cup
Use the dust cup by attaching to the drill bit a shown
in Fig. 4.
When using a bit which has big diameter, enlarge
the center hole of the dust cup with this rotary
hammer.
Dust cup
Drill bit
Part of SDS-plus shank
Grip
Front cap
Fig. 2
Fig. 3
Grip
Fig. 4
䡬
Installing dust collector (B)
When using dust collector (B), insert dust collector
(B) from the tip of the bit by aligning it to the groove
on the grip (Fig. 5)
CAUTION:
䢇
The dust cup and dust collector (B) are for exclusive
use of concrete drilling work. Do not use them for
wood or metal drilling work.
䢇
Insert dust collector (B) completely into the chuck
part of the main unit.
䢇
When turning the rotary hammer on while dust
collector (B) is detached from a concrete surface,
dust collector (B) will rotate together with the drill
bit. Make sure to turn on the switch after pressing
dust cup on the concrete surface. (When using dust
collector (B) attached to a drill bit that has more
than 7-15/32" (190 mm) of overall length, dust
collector (B) cannot touch the concrete surface and
will rotate. Therefore please use dust collector (B)
by attaching to drill bits which have 6-17/32" (166
mm), 6-19/64" (160 mm) and 4-21/64" (110 mm)
overall length.
䢇
Dump particles after every two or three holes when
drilling.
䢇
Please replace the drill bit after removing dust
collector (B).
8. Selecting the driver bit
Screw heads or bits will be damaged unless a bit
appropriate for the screw diameter is employed to
drive in the screws.
9. Confirm the direction of bit rotation (Fig. 6)
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.
Dust collector (B)
Fig. 5
Fig. 6
Push button
R
L
01Eng_DH28PD_US 10/2/09, 15:329
10
English
10. Selecting the function mode
You can switch functions to the 3 modes of
“hammering only, “rotation + hammering”, and
“rotation only” by turning the change lever while
pressing the push button. Set the ▲ mark position
of the change lever to that of the mode to be used.
CAUTION:
䢇
Before operating the change lever, check and make
sure that the motor has stopped.
A failure can occur if it is operated while the motor
is running.
䢇
To operate the change lever, press the push button,
and release the lock of the change lever. Also, check
and make sure after operation that the push button
has returned and that the change lever has been
locked.
䢇
Switch the change lever without mistake. If it is
used at a position halfway, there is a fear that the
service life of the switching mechanism may be
shortened.
HOW TO USE
CAUTION:
To prevent accidents, make sure to turn the switch
off and disconnect the plug from the receptacle
when the drill pits and other various parts are
installed or removed. The power switch should also
be turned off during a work break and after work.
1. Switch operation
The rotation speed of the drill bit can be controlled
steplessly by varying the amount that the trigger
switch is pulled. Speed is low when the trigger
switch is pulled slightly and increases as the switch
is pulled more. To turn the switch OFF, release the
trigger switch to its original position.
2. Rotation + Hammering
This rotary hammer can be set to rotation and
hammering mode by pressing the push button and
turning the change lever to
mark. (Fig. 7)
Turn the grip slightly and confirm that the clutch
has been engaged with a click.
(1) Mount the drill bit.
(2) Pull the trigger switch after applying the drill bit tip
to the drilling position (Fig. 8)
(3) Pushing the rotary hammer forcibly is not necessary
at all. Pushing slightly so that drill dust comes out
gradually is just sufficient.
3. Using the dust-collecting unit
Using the rotary hammer with the dust-collecting
unit attached creates a more hygienic working
environment free of flying dust (Fig. 9).
(1) Attaching the dust-collecting unit
Insert the dust-collecting unit along the rail on the
rotary hammer. When it is inserted as far as it will
go, fix it to the rotary hammer with the two latches
(Fig. 10).
CAUTION:
The dust-collecting unit is designed for use when
drilling concrete. Do not use for drilling holes in
metal or wood.
Fig. 7
Fig. 8
Fig. 10
Fig. 9
Push button
Change lever
Nozzle
Ajuster
Drill bit
Dust box
Dust-collecting
unit
Latch
Rail
Latch
Dust-collecting
unit
01Eng_DH28PD_US 10/2/09, 15:3210
11
English
(2) Adjusting the dust-collecting unit
(a) Adjusting the position of the dust-collecting
nozzle
Push the nozzle in and adjust to the desired
position. Pull the adjuster on the nozzle in the
direction of the arrow to release the lock and
move until it contacts with the adjuster rod.
Push the adjuster in the opposite direction to
the arrow to lock (Fig. 11).
(b) Setting the hole-drilling depth
Pull the adjuster on the handle in the direction
of the arrow to release the lock, move to the
desired position to determine the stroke, and
push the adjuster in the opposite direction to
the arrow to lock.
The nozzle travel distance when the tip of the
nozzle matches the tip of the drill bit is the hole-
drilling depth (Fig. 12).
䡬
The maximum hole-drilling depth when using
the dust-collecting unit is 85 mm.
䡬
When using the dust-collecting unit, it is
possible to use HITACHI drill bits between
5/32" (4 mm) and 23/32" (18 mm) in diameter
and up to 3-15/16" (100 mm) in effective length.
(3) Drilling holes
When drilling holes, hold the rotary hammer so that
the tip of the nozzle contacts with the concrete
surface. Dust-collecting effectiveness is reduced if
the unit is not in contact with the surface (Fig. 13).
(4) Removing dust
Excessive dust in the dust box will reduce dust-
collecting effectiveness. Empty the dust box
regularly.
Push the lever to remove the dust box from the dust-
collecting unit, and empty and clean the box (Fig.
14).
Dust-collecting effectiveness is reduced if the filter
in the dust box becomes blocked.
Use the table below as a guide to replacement of
the dust box.
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Dust box capacity Drill diameter of 6 mm / depth of 28 mm: 130 holes
Drill diameter of 8 mm / depth of 30 mm: 75 holes
Drill diameter of 12 mm / depth of 50 mm: 20 holes
Guide to replacement of dust box
Dust box has been filled and emptied 100 times
Arrow
Ajuster
rod
Nozzle
Ajuster
Nozzle
Ajuster rod
Ajuster
Arrow
Lever
Dust box
Dus-collecting
unit
01Eng_DH28PD_US 10/2/09, 15:3211
12
English
(5) Replacing the rubber cap
Wear of the rubber cap will reduce dust-collecting
effectiveness.
Replace the rubber cap when it becomes worn.
How to replace the rubber cap (Fig. 15)
(1) Remove the nozzle seal from the nozzle.
(2) Replace the rubber cap with a new cap.
Fit the rubber cap making sure that it is correctly
oriented.
(3) Attach the nozzle seal.
Insert the lip of the nozzle seal securely into the
groove of the nozzle.
At this time, make sure that the groove between
the nozzle and the nozzle seal is uniform all the way
round.
4. When not using the dust-collecting unit
When using the rotary hammer without the dust-
collecting unit, attach the provided cover in the unit
attachment hole (Fig. 16).
CAUTION:
If no cover is attached, dust or other particles may
be sucked up from the hole, causing damage to
the motor.
5. Rotation only
NOTE:
The dust-collecting unit cannot be used. Remove
the unit and insert the provided cap in the unit
attachment hole.
CAUTION:
If no cover is attached, dust or other particles may
be sucked up from the hole, causing damage to
the motor.
This rotary hammer can be set to rotation only
mode by pressing the push button and turning the
change lever to mark. (Fig. 17)
Turn the grip slightly and confirm that the clutch
has been engaged with a click.
To drill a wood or metal material using the
separately sold drill chuck and chuck adaptor,
proceed as follows. Installing drill chuck and chuck
adaptor (Fig. 18):
(1) Attach the drill chuck to the chuck adaptor.
(2) The part of the SDS-plus shank is the same as the
drill bit. Therefore, refer to the item of “Mounting
the drill bit” for attaching it.
CAUTION:
䢇
Application of force more than necessary will not
only reducing drilling efficiency at all, but will
deteriorate the tip edge of the drill bit and reduce
the service life of the rotary hammer in addition.
䢇
Drill bit may snap off while withdrawing the rotary
hammer from the drilled hole. For withdrawing, it
is important to use a pushing motion.
䢇
Do not attempt to drill anchor holes or holes in
concrete with the main unit in the rotation only
function.
Fig. 16
Fig. 17
Fig. 18
Fig. 15
Lip
Groore
Nozzle
Nozzle seal
Rubber cap
Groore between nozzle
and nozzle seal
Cover
Attachment
hole
Change lever
Push button
Front
cap
Chuck
adaptor
Grip
Part of SDS-plus
shank
Drill
chuck
01Eng_DH28PD_US 10/2/09, 15:3212
13
English
䢇
Do not attempt to use the rotary hammer in the
rotation and hammering function with the drill
chuck and chuck adapter attached. This would
seriously shorten the service life of every
components of the machine.
6. When driving machine screws (Fig. 19)
First, insert the bit into the socket in the end of chuck
adaptor (D).
Next, mount chuck adaptor (D) on the main unit
using procedures described in 6 (1), (2), (3), put the
tip of the bit in the slots in the head of the screw,
grasp the main unit and tighten the screw.
CAUTION:
䢇
Exercise care not to excessively prolong driving
time, otherwise, the screws may be damaged by
excessive force.
䢇
Apply the rotary hammer perpendicularly to the
screw head when driving a screw; otherwise, the
screw head or bit will be damaged, or driving force
will not be fully transferred to the screw.
䢇
Do not attempt to use the rotary hammer in the
rotation and hammering function with the chuck
adapter (D) and bit attached.
7. When driving wood screws (Fig. 19)
(1) Selecting a suitable driver bit
Employ phillips screws, if possible, since the driver
bit easily slips off the heads of slotted-head screws.
(2) Driving in wood screws
䡬
Prior to driving in wood screws, make pilot holes
suitable for them in the wooden board. Apply the
bit to the screw head grooves and gently drive the
screws into the holes.
䡬
After rotating the rotary hammer at low speed for a
while until a wood screw in partly driven into the
wood, squeeze the trigger more strongly to obtain
the optimum driving force.
CAUTION:
Exercise care in preparing a pilot hole suitable for
the wood screw taking the hardness of the wood
into consideration. Should the hole be excessively
small or shallow, requiring much power to drive
the screw into it, the thread of the wood screw
may sometimes be damaged.
8. Hammering only
NOTE:
The dust-collecting unit cannot be used. Remove
the unit and insert the provided cap in the unit
attachment hole.
CAUTION:
䢇
If no cover is attached, dust or other particles may
be sucked up from the hole, causing damage to
the motor.
This rotary hammer can be set to hammering only
mode by pressing the push button and turning the
change lever to mark. (Fig. 20)
(1) Mount the bull point or cold chisel.
(2) Press the push button and set the change lever to
mark. (Fig. 21)
The rotation is released, turn the tool and adjust
the tool to desired position. (Fig. 22)
Fig. 19
Fig. 20
Fig. 21
Bit
Socket
Chuck adaptor (D)
Front cap
Grip
Fig. 22
Push button
Change lever
Change lever
Push button
01Eng_DH28PD_US 10/2/09, 15:3213
14
English
(3) Turn the change lever to mark. (Fig. 20)
Then bull point or cold chisel is locked.
9 . Using the stopper (Fig. 23)
(1) Loosen the wing bolt and insert the stopper into
the mounting hole on the side handle.
(2) Adjust the stopper position according to the depth
of the hole and tighten the wing bolt securely.
10. How to use the drill bit (taper shank) and the taper
shank adaptor.
(1) Mount the taper shank adaptor to the rotary
hammer. (Fig. 24)
(2) Mount the drill bit (taper shank) to the taper shank
adaptor. (Fig. 24)
(3) Turn the switch ON, and drill a hole in prescribed
depth.
(4) To remove the drill bit (taper shank), insert the cotter
into the slot of the taper shank adaptor and strike
the head of the cotter with a hammer supporting
on the rests. (Fig. 25)
Fig. 24
Fig. 23
11. Using the side handle
When you wish to change a position of the side
handle, turn grip of the side handle
counterclockwise to loosen it, and then fasten it
firmly.
CAUTION:
When boring a hole, there can be a case where the
machine attempts to rotate by the reaction at the
time of penetrating a concrete wall and/or when a
tip of the blade comes in contact with the rebar.
Firmly fasten the side handle and hold the machine
with both of your hands. Unless you hold it
securely, an accident can occur.
HOW TO USE THE CORE BIT (FOR LIGHT
LOAD)
When boring penetrating large hole use the core bit (for
light load). At that time use with the center pin and the
core bit shank provided as optional accessories.
1. Mounting
CAUTION:
Be sure to turn power OFF and disconnect the plug
from the receptacle.
(1) Mount the core bit to the core bit shank. (Fig. 26)
Lubricate the thread of the core bit shank to facilitate
disassembly.
Stopper
Wing bolt
Side handle
Mounting hole
Drill bit
Taper shank
adaptor
Front cap
Grip
Cotter
Rests
Taper shank adaptor
Fig. 25
01Eng_DH28PD_US 10/2/09, 15:3214
15
English
(2) Mount the core bit shank to the rotary hammer. (Fig.
27)
(3) Insert the center pin into the guide plate until it
stops.
(4) Engage the guide plate with the core bit, and turn
the guide plate to left or right so that it does not fall
even if it faces downward. (Fig. 28)
2. How to bore (Fig. 29)
(1) Connect the plug to the power source.
(2) A spring is installed in the center pin. Push it lightly
to the wall or the floor straight. Connect all over
the surface of the core bit tip and start operating.
(3) When boring about 3/16" (5 mm) in depth the
position of the hole will establish. Bore after that
removing the center pin and the guide plate from
core bit.
(4) Application of excessive force will not only expedite
the work, but will deteriorate the tip edge of the
drill bit, resulting in reduced service life of the rotary
hammer.
Fig. 26
Core bit
Thread
Core bit shank
Fig. 27
CAUTION:
When removing the center pin and the guide plate,
turn OFF the switch and disconnect the plug form
the receptacle.
3. Dismounting. (Fig. 30)
Remove the core bit shank from the
rotary hammer and strike the head of the core bit
shank strongly two or three times with the hammer
holding the core bit, then the thread becomes loose
and the core bit can be removed.
Fig. 28
Fig. 29
Core bit
Core bit tip
Guide plate
Center pin
Core bit shank
Fig. 30
01Eng_DH28PD_US 10/2/09, 15:3215
16
English
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 screws
Regularly inspect all screws and ensure that they
are properly tightened. Should any of the screws
be loosened, retighten them immediately.
WARNING:
Using this rotary hammer with
loosen 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. 31)
The motor employs carbon brushes which are
consumable parts. When they become worn to or
near “wear limit”, it could result in motor trouble.
At that time, replace both carbon brushes with new
ones which have the same carbon brush Nos.
shown in the figure.
In addition, always keep carbon brushes clean and
ensure that they slide freely within the brush
holders.
CAUTION:
Using this rotary hammer with a
carbon brush which is worn in
excess of the wear limit will damage
the motor.
NOTE:
Use HITACHI carbon brush No.04 indicated in
Fig. 31.
䡬
Replacing carbon brushes:
(For parts name, refer to Fig. 1)
Loosen the two set screws and remove the tail
cover. Remove the brush caps and carbon brushes.
After replacing the carbon brushes, tighten the
brush caps securely and to install the tail cover with
securely tightening two set screws.
5. How to replase grease
This machine is full air-tight construction to protect
against dust and to prevent lubricant leakage.
Therefore, the machine can be used without
lubrication for long periods. Replace the grease as
described below.
䡬
Grease replacement period
You should look at the grease when you change
the carbon brush. (See item 4 in the section
MAINTENANCE AND INSPECTION.) Ask for grease
replacement at the nearest HITACHI Authorized
Service Center. Proceed for replacement of grease.
䡬
Grease replenishment
CAUTION:
Before replenishing the grease, turn
the power off and pull out the
power plug.
(1) Disassemble the crank case cover and thoroughly
wipe off the old grease inside. (Fig. 32)
(2) Supply 1.0 oz (30g) of Hitachi Electric Hammer
Grease A (standard accessory, contained in tube)
in the crank case.
(3) After replacing the grease, reassemble the crank
case cover securely. At this time, do not damage or
lose the oil seal.
NOTE:
The HITACHI Electric Hammer Grease A
is of the lower viscosity type. When the
supplied grease tube is consumed,
purchase from a HITACHI Autorized
Service Center.
Wear limit
No. of carbon brush
0.24" (6 mm)
0.67" (17 mm)
04
Fig. 31
01Eng_DH28PD_US 5/28/10, 2:57 PM16
17
English
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.
7. Service parts list
A: Item No.
B: Code No.
C: No. Used
D: Remarks
CAUTION:
Repair, modification and inspection of Hitachi
Power Tools must be carried out by a 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.
Crank cover
Fig. 32
01Eng_DH28PD_US 10/2/09, 15:3217
18
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) Plastic Case (Code No. 330220) ............................................................................................................... 1
(2) Side Handle (Code No. 330208) .............................................................................................................. 1
(3) Stopper (Code No. 982671) ..................................................................................................................... 1
(4) Cover (Code No. 331730) ......................................................................................................................... 1
(5) Rubber cap (replacement) (Code No. 331731) ...................................................................................... 1
OPTIONAL ACCESSORIES................. sold separately
1. Drilling anchor holes (Rotation + Hammering)
Cotter (Code No. 944477)
䡬
Drill Bit (Taper shank) and taper shank adaptor
(1) Drill Bit (Taper Shank)
(2) Taper Shank Adaptor
(SDS-plus shank)
Taper mode Code No. Applicable drill bit
7/16" (11 mm)
1/2" (12.3 mm)
303617
1/2" (12.7 mm)
9/16" (14.3 mm)
9/16" (14.5 mm)
11/16" (17.5 mm)
303618 7/8" (21.5 mm)
A-taper 303619
B-taper 303620
External dia. Code No.
7/16"
944460
(11 mm)
1/2"
944461
(12.3 mm)
1/2"
993038
(12.7 mm)
9/16"
944462
(14.3 mm)
9/16"
944500
(14.5 mm)
11/16"
944463
(17.5 mm)
7/8"
944464
(21.5 mm)
Morse taper
(No. 1)
Drill bit
(Taper shank)
Taper shank adaptor formed A-taper or B-
taper is provided as an optional accessory,
but drill bit for it is not provided.
Morse taper
(No. 2)
Drill bit
(Taper shank)
01Eng_DH28PD_US 10/2/09, 15:3218
19
English
<Outer wedge type with the female screw>
Anchor size
W 1/4" W 5/16" W 3/8"
(6.3 mm) (8 mm) (9.5 mm)
Overall Length
10-1/4" 10-1/4" 6-1/4" 10-1/4"
(260 mm) (260 mm) (160 mm) (260 mm)
Code No. 302976 302975 303621 302974
<Inner wedge type with the headless screw>
Anchor size
W 1/4" W 5/16" W 3/8"
(6.3 mm) (8 mm) (9.5 mm)
Overall Length
10-1/4" 10-1/4" 6-1/4" 10-1/4"
(260 mm) (260 mm) (160 mm) (260 mm)
Code No. 302979 302978 303622 302977
Anchor Setter (for anchor setting)
(SDS-plus shank)
2. Knock-in anchor (Hammering only)
Anchor setting adaptor
(for manual hammer)
<Outer wedge type with
the female screw>
Anchor size Code No.
W1/4"
971794
(6.3 mm)
W5/16"
971795
(8 mm)
W3/8"
971796
(9.5 mm)
W1/2"
971797
(12.7 mm)
W5/8"
971798
(15.9 mm)
<Inner wedge type with
the headless screw>
Anchor size Code No.
W1/4"
971799
(6.3 mm)
W5/16"
971800
(8 mm)
W3/8"
971801
(9.5 mm)
W1/2"
971802
(12.7 mm)
W5/8"
971803
(15.9 mm)
01Eng_DH28PD_US 10/2/09, 15:3219
20
English
Core bit (outer diameter) Core bit shank
––
1"(25 mm) 982672 Overall length
1-1/8" (29 mm) 982673 4-1/8" 303625
(A) 1-1/4" (32 mm) 982674 (A) (105 mm)
(A) 982684 1-3/8" (35 mm) 982675 12"
303626
1-1/2" (38 mm) 982676 (300 mm)
1-3/4" (45 mm) 982677
(B) 982685 (B)
2" (50 mm) 982678
(B)
12"
303627
2-9/16" (65 mm) 982679 (300 mm)
3-5/32" (80 mm) 982680
Center
pin
Code No. Code No. Code No.
Guide plate
Core bit
(outer diameter)
1-1/4" (32 mm)
1-3/8" (35 mm)
1-1/2" (38 mm)
Core bit
(outer diameter)
1-3/4" (45 mm)
2" (50 mm)
2-9/16" (65 mm)
3-5/32" (80 mm)
Code No.
982686
982687
982688
Code No.
982689
982690
982691
982692
3. Large hole boring (Rotation + Hammering)
Guide
Plate
Center pin Core Bit
Core bit Shank
(SDS-plus shank)
4. Demolishing operation (Hammering only)
Bull point (Round type) (SDS-plus shank)
Code No. 303046
Bull point (Square type) (SDS-plus shank)
Code No. 316656
01Eng_DH28PD_US 10/2/09, 15:3220
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
La page charge ...
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
-
24
-
25
-
26
-
27
-
28
-
29
-
30
-
31
-
32
-
33
-
34
-
35
-
36
-
37
-
38
-
39
-
40
-
41
-
42
-
43
-
44
-
45
-
46
-
47
-
48
-
49
-
50
-
51
-
52
-
53
-
54
-
55
-
56
-
57
-
58
-
59
-
60
-
61
-
62
-
63
-
64
-
65
-
66
-
67
-
68
Hitachi DH28PD Manuel utilisateur
- Catégorie
- Marteaux rotatifs
- Taper
- Manuel utilisateur
- Ce manuel convient également à
dans d''autres langues
- English: Hitachi DH28PD User manual
- español: Hitachi DH28PD Manual de usuario
Documents connexes
-
Hitachi DH50SBK - 2" Spline Rotary HAMMERW/CASE 10.4Amp AC Manuel utilisateur
-
-
-
-
-
-
-
-
Hitachi DH 24 PF Manuel utilisateur
-