HIKOKI G18SCY, G18UAY, G23UAY, G23SEY, G23UBY Handling Instructions Manual
...
Disc Grinder
Amoladora angular
日立牌手提圓盤電磨機
G18SCY • G18UAY • G18SEY • G18UBY
G23SCY • G23UAY • G23SEY • G23UBY
Handling instructions
Instrucciones de manejo
使用說明書
G23SCY
Read through carefully and understand these instructions before use.
Leer cuidadosamente y comprender estas instrucciones antes del uso.
使用前務請詳加閱讀
1
1
2
3
3
2
4
6
7
8
9
0
F
E
5
B
C
D
7
A
9
15 – 30°
AB
4
I
J
a
22.5 mm
J a
K 61 6.5 mm
L 89 8.5 mm
5
G
H
1
K
L
M
N
English Español
1
Brush cover
2
Socket for side handle
3
Push button (Spindle lock)
4
Spindle
5
Across flats
6
Wheel guard
7
Wheel washer
8
Depressed center wheel
9
Wheel nut
0
Wrench
A
Diamond wheel
B
Side handle
C
Lock button
D
Switch
E
Lever
F
Set piece
G
Screw
H
Locating pin
I
Wear limit
J
No. of carbon brush
K
Usual carbon brush
L
Auto-stop carbon brush
M
Spring
N
Brush holder
Cubierta de la escobilla
Rosca para el asa lateral
Botón pulsador (bloqueo del eje)
Eje
Distancia entre caras
Cubierta protectora de muela
Arandela molar
Muela de alisado
Contratuerca molar
Llave para tuercas
Adiamantado
Asidero lateral
Botón de seguridad
Conmutador
Palanca
Pieza de ajuste
Tornillo
Pasador de posicionamiento
Límite de uso
No. de carbón de contacto
Escobilla de carbón usual
Escobilla de carbón de parada
Resorte
Portaescobilla
中國語
碳刷蓋
側柄插座
鎖定銷（主軸鎖）
主軸
對邊寬度
輪罩
輪墊圈
砂輪
砂輪螺帽
扳手
金剛石輪
側柄
開關鎖
開關
手柄
設定片
螺絲釘
定位銷
磨損極限
碳刷號
通常碳刷
自動停止碳刷
彈簧
刷握
2
English
GENERAL SAFETY RULES
WARNING!
Read all instructions
Failure to follow all instructions listed below may result in
electric shock, fire and/or serious injury.
The term “power tool” in all of the warnings listed below
refers to your mains operated (corded) power tool or battery
operated (cordless) power tool.
SAVE THESE INSTRUCTIONS
1) Work area
a) Keep work area clean and well lit.
Cluttered and 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
of 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.
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.
A moment of inattention while operating power
tools may result in serious personal injury.
b) Use safety equipment. Always wear eye protection.
Safety equipment such as dust mask, non-skid safety
shoes, hard hat, or hearing protection used for
appropriate conditions will reduce personal injuries.
c) Avoid accidental starting. Ensure the switch is in
the off position before plugging in.
Carrying power tools with your finger on the switch
or plugging in 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 these devices 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 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 tools
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 and in the
manner intended for the particular type of power
tool, taking into account the working conditions
and the work to be performed.
Use of the power tool for operations different from
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.
PRECAUTION
Keep children and infirm persons away.
When not in use, tools should be stored out of reach of
children and infirm persons.
3
English
PRECAUTIONS ON USING DISC GRINDER
1. Never operate these power tools without Wheel
Guards.
2. Check that speed marked on the wheel is equal to
or greater than the rated speed of the grinder.
Use only depressed center wheels rated at 80 m/
s or more.
3. Ensure that the wheel dimensions are compatible
with the grinder and that the wheel fits the spindle.
4. Abrasive wheels shall be stored and handled with
care in accordance with manufacturer’s instructions.
5. Inspect the depressed center wheel before use, do
not use chipped, cracked or otherwise defective
products.
6. Always hold the body handle and side handle of
the power tool firmly. Otherwise the counterforce
produced may result in inaccurate and even
dangerous operation.
7. Do not use cutting-off wheels for side grinding.
8. Do not use of separate reducing bushings or adapters
to adapt large hole abrasive wheels.
9. The wheel continues to rotate after the tool is
switched off.
SPECIFICATIONS
Model G18SCY G18UAY G18SEY G18UBY G23SCY G23UAY G23SEY G23UBY
Voltage (by areas)*
1
Input*
No-load speed 8500 /min 6600 /min
Outer dia. 180 mm 230 mm
Wheel Hole dia. 22 mm
Peripheral speed 80 m/s
2
Weight*
*1 Be sure to check the nameplate on product as it is subject to change by areas.
*2 Weight: Only main body
STANDARD ACCESSORIES
(1) Wrench ........................................................................ 1
(2) Side handle ................................................................ 1
Depressed center wheels are not provided as standard
accessories.
Standard accessories are subject to change without
notice.
APPLICATIONS
䡬
Removal of casting fin and finishing of various types
of steel, bronze and aluminum materials and castings.
䡬 Grinding of welded sections or sections cut by
means of a cutting torch.
䡬 Grinding of synthetic resins, slate, brick, marble, etc.
䡬 Cutting of synthetic concrete, stone, brick, marble
and similar materials.
PRIOR TO OPERATION
1. Power source
Ensure that the power source to be utilized conforms
to the power requirements specified on the product
nameplate.
2. Power switch
Ensure that the power switch is in the OFF position.
If the plug is connected to a receptacle while the
power switch is in the ON position, the power tool
will start operating immediately, which could cause
a serious accident.
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(110V, 120V, 230V, 240V)
2400W 2600W 2400W 2600W
5.1 kg
3. Extension cord
When the work area is removed from the power
source, use an extension cord of sufficient thickness
and rated capacity. The extension cord should be
kept as short as practicable.
4. Fitting and adjusting the wheel guard
The wheel guard is a protective device to prevent
injury should the depressed center wheel shatter
during operation. Ensure that the guard is properly
fitted and fastened before commencing grinding
operation.
[Installing and adjusting the wheel guard]
䡬 Open the lever and insert the locating pin of wheel
guard, bringing it into line with the across flats of
packing ground.
䡬 Then, turn the wheel guard to a desired position
(for use).
䡬 Close the lever and fix it. If and when required, carry
out adjustments by tightening or loosening the screw.
䡬 If the lever does not move smoothly, apply some
lubricating oil to the sliding section between the set
piece and the lever.
䡬 Fasten the wheel guard at the position where the
across flats of the wheel guard positioning pin and
packing ground are aligned (the position where the
wheel guard is inserted), but do not use it.
5. Ensure that the depressed center wheel to be utilized
is the correct type and free of cracks or surface
defects. Also ensure that the depressed center wheel
is properly mounted and the wheel nut is securely
tightened. Refer to the section on “Assembling and
Disassembling the Depressed Center Wheel”.
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English
6. Conducting a trial run
Ensure that the abrasive products is correctly
mounted and tightened before use and run the tool
at no-load for 30 seconds in a safe position, stop
immediately if there is considerable vibration or if
other defects are detected.
If this condition occurs, check the machine to
determine the cause.
7. Confirm the spindle lock mechanism
Confirm that the spindle lock is disengaged by
pushing push button two or three times before
switching the power tool on (See Fig. 1).
8. Fixing the side handle
Screw the side handle into the gear cover.
PRACTICAL GRINDER APPLICATION
1. Pressure
To prolong the life of the machine and ensure a
first class finish, it is important that the machine
should not be overloaded by applying too much
pressure. In most applications, the weight of the
machine alone is sufficient for effective grinding.
Too much pressure will result in reduced rotational
speed, inferior surface finish, and overloading which
could reduce the life of the machine.
2. Grinding angle
Do not apply the entire surface of the depressed
center wheel to the material to be ground. As
shown in Fig. 3, the machine should be held at an
angle of 15° – 30° so that the external edge of the
depressed center wheel contacts the material at an
optimum angle.
3. To prevent a new depressed center wheel from
digging into the workpiece, initial grinding should
be performed by drawing the grinder across the
workpiece toward the operator (Fig. 3 direction B).
Once the leading edge of the depressed center
wheel is properly abraded, grinding may be
conducted in either direction.
4. Switch operation
Switch ON: Push the locking button forward and
Switch OFF: Press and release the switch lever.
5. Precautions immediately after finishing operation
After switching off the machine, do not put it down
until the depressed center wheel has come to a
complete stop. Apart from avoiding serious
accidents, this precaution will reduce the amount
of dust and swarf sucked into the machine.
CAUTION:
䡬 Check that the work piece is properly supported.
䡬 Ensure that ventilation openings are kept clear when
working in dusty conditions.
If it should become necessary to clear dust, first
disconnect the tool from the mains supply (use nonmetallic objects) and avoid damaging internal parts.
䡬 Ensure that sparks resulting from use do not create
a hazard e.g. do not hit persons, or ignite flammable
substances.
then press the switch lever.
* For continuous use, press the switch
lever. The switch lever is locked by
pushing the locking button forward
once again.
(*Subject to change depending on
area.)
䡬 Always use eye and ear protection.
Other personal protective equipment such as dust
mask, gloves, helmet and apron should be worn
when necessary.
If in doubt, wear the protective equipment.
䡬 When the machine is not use, the power source
should be disconnected.
ASSEMBLING AND DISASSEMBLING THE
DEPRESSED CENTER WHEEL
CAUTION:
Be sure to switch OFF and disconnect the attachment
plug from the receptacle to avoid a serious accident.
1. Assembling (Fig. 1)
(1) Turn the machine upside down so that the spindle
is facing upward.
(2) Mount the wheel washer onto the spindle.
(3) Fit the protruding part of the depressed center
wheel or diamond wheel onto the wheel washer.
(4) Screw the wheel nut onto the spindle.
(For diamond wheel assembling, use the wheel nut
with the convex side against the diamond wheel.)
(5) Insert the push button to prevent rotation of the
spindle, and tighten the wheel nut with the accessory
wrench, as shown in Fig.1.
2. Disassembling
Follow the above procedures in reverse.
CAUTION:
䡬 Comfirm that the depressed center wheel is mounted
firmly.
䡬 Confirm that the push button is disengaged by
pushing push button two or three times before
switching the power tool on.
MAINTENANCE AND INSPECTION
1. Inspecting the depressed center wheel
Ensure that the depressed center wheel is free of
cracks and surface defects.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure
that they are properly tightened. Should any of the
screws be loose, retighten them immediately. Failure
to do so could result in serious hazard.
3. Inspecting the carbon brushes (Fig. 4)
The motor employs carbon brushes which are
consumable parts.
When they become worn to or near the “wear
limit”, it could result in motor trouble. When an
auto-stop carbon brush is equipped, the motor will
stop automatically.
At that time, replace both carbon brushes with new
ones which have the same carbon brush numbers
shown in the figure. In addition, always keep carbon
brushes clean and ensure that they slide freely
within the brush holders.
4. Replacing carbon brushes (Fig. 5)
<Disassembly>
(1) Loosen the D4 tapping screw retaining the brush
cover and remove the brush cover.
(2) Use the auxiliary hexagonal wrench or small
screwdriver to pull up the edge of the spring that
is holding down the carbon brush. Remove the
edge of the spring toward the outside of the brush
holder.
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English
(3) Remove the end of the pig-tail on the carbon brush
from the terminal section of brush holder and then
remove the carbon brush form the brush holder.
<Assembly>
(1) Insert the end of the pig-tail of the carbon brush
in the terminal section of brush holder.
(2) Insert the carbon brush in the brush holder.
(3) Use the auxiliary hexagonal wrench or small
screwdriver to return the edge of the spring to the
head of the carbon brush.
(4) Mount the tail cover and tighten the D4 tapping
screw.
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 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
HiKOKI
and modified to incorporate the latest technological
advancements.
Accordingly, some parts may be changed without
prior notice.
HiKOKI
HiKOKI
HiKOKI
NOTE:
Due to HITACHI’s continuing program of research and
HiKOKI's
development, the specifications herein are subject to
change without prior notice.
6
Español
NORMAS GENERALES DE SEGURIDAD
¡ADVERTENCIA!
Lea todas las instrucciones
Si no se siguen las instrucciones de abajo podría producirse
una descarga eléctrica, un incendio y/o daños graves.
El término “herramienta eléctrica” en todas las
advertencias indicadas a continuación hace referencia a
la herramienta eléctrica que funciona con la red de
suministro (con cable) o a la herramienta eléctrica que
funciona con pilas (sin cable).
CONSERVE ESTAS INSTRUCCIONES
1) Área de trabajo
a) Mantenga la zona de trabajo limpia y bien
iluminada.
Las zonas desordenadas y oscuras pueden
provocar accidentes.
b) No utilice las herramientas eléctricas en entornos
explosivos como, por ejemplo, en presencia de
líquidos inflamables, gases o polvo.
Las herramientas eléctricas crean chispas que
pueden hacer que el polvo desprenda humo.
c) Mantenga a los niños y transeúntes alejados
cuando utilice una herramienta eléctrica.
Las distracciones pueden hacer que pierda el control.
2) Seguridad eléctrica
a) Los enchufes de las herramientas eléctricas tienen
que ser adecuados a la toma de corriente.
No modifique el enchufe.
No utilice enchufes adaptadores con herramientas
eléctricas conectadas a tierra.
Si no se modifican los enchufes y se utilizan tomas
de corriente adecuadas se reducirá el riesgo de
descarga eléctrica.
b) Evite el contacto corporal con superficies conectadas
a tierra como tuberías, radiadores y frigoríficos.
Hay mayor riesgo de descarga eléctrica si su
cuerpo está en contacto con el suelo.
c) No exponga las herramientas eléctricas a la lluvia
o a la humedad.
La entrada de agua en una herramienta eléctrica
aumentará el riesgo de descarga eléctrica.
d) No utilice el cable incorrectamente. No utilice el
cable para transportar, tirar de la herramienta
eléctrica o desenchufarla.
Mantenga el cable alejado del calor, del aceite, de
bordes afilados o piezas móviles.
Los cables dañados o enredados aumentan el
riesgo de descarga eléctrica.
e) Cuando utilice una herramienta eléctrica al aire
libre, utilice un cable prolongador adecuado para
utilizarse al aire libre.
La utilización de un cable adecuado para usarse
al aire libre reduce el riesgo de descarga eléctrica.
3) Seguridad personal
a) Esté atento, preste atención a lo que hace y utilice
el sentido común cuando utilice una herramienta
eléctrica.
No utilice una herramienta eléctrica cuando esté
cansado o esté bajo la influencia de drogas,
alcohol o medicación.
La distracción momentánea cuando utiliza
herramientas eléctricas puede dar lugar a
importantes daños personales.
b) Utilice equipo de seguridad. Utilice siempre una
protección ocular.
El equipo de seguridad como máscara para el
polvo, zapatos de seguridad antideslizantes, casco
o protección para oídos utilizado para condiciones
adecuadas reducirá los daños personales.
c) Evite un inicio accidental. Asegúrese de que el
interruptor está en “off” antes de enchufarlo.
El transporte de herramientas eléctricas con el
dedo en el interruptor o el enchufe de
herramientas eléctricas con el interruptor
encendido puede provocar accidentes.
d) Retire las llaves de ajuste antes de encender la
herramienta eléctrica.
Si se deja una llave en una pieza giratoria de la
herramienta eléctrica podrían producirse daños
personales.
e) No se extralimite. Mantenga un equilibrio
adecuado en todo momento.
Esto permite un mayor control de la herramienta
eléctrica en situaciones inesperadas.
f) Vístase adecuadamente. No lleve prendas sueltas
o joyas. Mantenga el pelo, la ropa y los guantes
alejados de las piezas móviles.
La ropa suelta, las joyas y el pelo largo pueden
pillarse en las piezas móviles.
g) Si se proporcionan dispositivos para la conexión
de extracción de polvo e instalaciones de recogida,
asegúrese de que están conectados y se utilizan
adecuadamente.
La utilización de estos dispositivos puede reducir
los riesgos relacionados con el polvo.
4) Utilización y mantenimiento de las herramientas
eléctricas
a) No fuerce la herramienta eléctrica. Utilice la
herramienta eléctrica correcta para su aplicación.
La herramienta eléctrica correcta trabajará mejor
y de forma más segura si se utiliza a la velocidad
para la que fue diseñada.
b) No utilice la herramienta eléctrica si el interruptor
no la enciende y apaga.
Las herramientas eléctricas que no pueden
controlarse con el interruptor son peligrosas y
deben repararse.
c) Desconecte el enchufe de la fuente eléctrica antes
de hacer ajustes, cambiar accesorios o almacenar
herramientas eléctricas.
Estas medidas de seguridad preventivas reducen
el riesgo de que la herramienta eléctrica se ponga
en marcha accidentalmente.
d) Guarde las herramientas eléctricas que no se
utilicen para que no las cojan los niños y no
permita que utilicen las herramientas eléctricas
personas no familiarizadas con las mismas o con
estas instrucciones.
Las herramientas eléctricas son peligrosas si son
utilizadas por usuarios sin formación.
e) Mantenimiento de las herramientas eléctricas.
Compruebe si las piezas móviles están mal
alineadas o unidas, si hay alguna pieza rota u
otra condición que pudiera afectar al
funcionamiento de las herramientas eléctricas.
Si la herramienta eléctrica está dañada, llévela a
reparar antes de utilizarla.
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