Hitachi Koki GP 2 - GP2 1" Die Grinder (4.7 AMP) Troubleshooting guide

DOUBLE INSULATION
DOUBLE ISOLATION
AISLAMIENTO DOBLE
SAFETY INSTRUCTIONS AND INSTRUCTION MANUAL
WARNING
IMPROPER OR UNSAFE use of this power tool can result in death or serious bodily
injury!
This manual contains important information about product safety. Please read and
understand this manual BEFORE operating the power tool. Please keep this manual
available for other users and owners before they use the power tool.
This manual should be stored in safe place.
INSTRUCTIONS DE SECURITE ET MODE D’EMPLOI
AVERTISSEMENT
Une utilisation INCORRECTE OU DANGEREUSE de cet outil motorisé peut entraîner la
mort ou de sérieuses blessures corporelles!
Ce mode d’emploi contient d’importantes informations à propos de la sécurité de ce
produit. Prière de lire et de comprendre ce mode d’emploi AVANT d’utiliser l’outil
motorisé.Gardercemoded’emploiàladisponibilitédesautresutilisateursetpropriétaires
avant qu’ils utilisent l’outil motorisé. Ce mode d’emploi doit être conservé dans un
endroit sûr.
INSTRUCCIONES DE SEGURIDAD Y MANUAL DE INSTRUCCIONES
ADVERTENCIA
¡La utilización INAPROPIADA O PELIGROSA de esta herramienta eléctrica puede
resultar en lesiones de gravedad o la muerte!
Este manual contiene información importante sobre la seguridad del producto. Lea y
comprenda este manual ANTES de utilizar la herramienta eléctrica. Guarde este manual
para que puedan leerlo otras personas antes de utilizar la herramienta eléctrica. Este
manual debe ser guardado en un lugar seguro.
Model Portable Grinder
Modèle Meuleuse droite
Modelo Amoladora recta
GP 2

Page
OPERATION, MAINTENANCE AND INSPECTION
NAME OF PARTS ................................................ 11
SPECIFICATIONS ................................................ 11
ACCESSORIES .................................................... 12
STANDARD ACCESSORIES ........................ 12
OPTIONAL ACCESSORIES .......................... 12
APPLICATIONS ................................................... 12
PRIOR TO OPERATION ....................................... 13
GRINDER OPERATION ....................................... 15
MAINTENANCE AND INSPECTION ................... 15
SERVICE AND REPAIRS...................................... 16
PARTS LIST ......................................................... 46
TABLE DES MATIERES
Français
Page
INFORMACIÓN IMPORTANTE SOBRE
SEGURIDAD ................................................. 17
SIGNIFICATION DES MOTS
D’AVERTISSEMENT .................................... 17
SECURITE
CONSIGNES DE SECURITE IMPORTANTES
POUR L’UTILISATION DE TOUS LES
OUTILS ELECTRIQUES ................................ 18
PIECES DE RECHANGE ET ACCESSOIRES ....... 22
FICHE POLARISEES ............................................ 22
UTILISATION D’UN CORDON DE
RALLONGE ................................................... 23
DOUBLE ISOLATION POUR UN
FONCTIONNEMENT PLUS SUR ................. 24
Page
UTILISATION, ENTRETIEN ET INSPECTION
NOM DES PARTIES ............................................ 25
SPECIFICATIONS ................................................ 25
ACCESSOIRES .................................................... 26
STANDARD ACCESSORIES ........................ 26
ACCESSOIRES SUR OPTION ...................... 26
APPLICATIONS ................................................... 26
AVANT L’UTILISATION ...................................... 27
FONCTIONNEMENT DE LA MEULEUSE ........... 29
ENTRETIEN ET INSPECTION.............................. 29
SERVICE APRES-VENTE ET REPARATIONS ..... 30
LISTE DES PIECES .............................................. 46
ÍNDICE
Español
Página
INFORMACIÓN IMPORTANTE SOBRE
SEGURIDAD ................................................. 31
SIGNIFICADO DE LAS PALABRAS DE
SEÑALIZACIÓN ............................................ 31
SEGURIDAD
INSTRUCCIONES IMPORTANTES DE
SEGURIDAD PARA UTILIZACIÓN DE
TODAS LAS HERRAMIENTAS
ELÉCTRICAS ................................................. 32
PIEZAS DE REEMPLAZO Y ACCESORIOS......... 36
ENCHUFES POLARIZADOS ................................ 36
UTILIZACIÓN DE UN CABLE
PROLONGADOR .......................................... 37
AISLAMIENTO DOBLE PARA OFRECER UNA
OPERACIÓN MÁS SEGURA ........................ 38
Página
OPERACIÓN, MANTENIMIENTO E INSPECCIÓN
NOMENCLATURA ............................................... 39
SPECIFICACIONES .............................................. 39
ACCESORIOS ...................................................... 40
ACCESORIOS ESTÁNDAR .......................... 40
ACCESORIOS OPCIONALES ....................... 40
APLICACIONES ................................................... 40
ANTES DE LA OPERACIÓN ................................ 41
OPERACIÓN DE LA AMOLADORA .................... 43
MANTENIMIENTO E INSPECCIÓN .................... 44
SERVICIO Y REPARACIÓN ................................. 45
LISTA DE PIEZAS ................................................ 46
CONTENTS
English
Page
IMPORTANT SAFETY INFORMATION ................ 3
MEANINGS OF SIGNAL WORDS ........................ 3
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
FOR USING ALL POWER TOOLS ................. 4
REPLACEMENT PARTS AND ACCESSORIES ..... 8
POLARIZED PLUGS .............................................. 8
USE OF EXTENSION CORD ................................. 9
DOUBLE INSULATION FOR SAFER
OPERATION ................................................. 10

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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
INPORTANT SAFETY INSTRUCTIONS FOR USING ALL POWER
TOOLS
WARNING: Death or serious bodily injury could result from improper or unsafe use
of power tools. To avoid these risks, follow these basic safety
instructions:
READ ALL INSTRUCTIONS
1. NEVER TOUCH MOVING PARTS.
NEVER place your hands, fingers or other body parts near the tool’s moving parts.
2. 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.
3. ALWAYS WEAR EYE AND EAR PROTECTOR.
Protect yourself from flying or expelled wood chips, metal
particles or other debris by using protective goggles or equivalent
eye protector. Wear ear protector to protect yourself from
excessive noise.
4. PROTECT YOURSELF AGAINST ELECTRIC SHOCK.
Prevent body contact with grounded surfaces such as pipes, radiators, ranges and
refrigeration enclosures. NEVER operate the tool in damp or wet locations.
5. DISCONNECT TOOLS.
NEVER leave the tool connected to a power source. ALWAYS disconnect the tool from
its power source before servicing, inspecting, maintaining, cleaning and before changing
or checking any parts.
6. AVOID UNINTENTIONAL STARTING.
Don’t carry the tool while it is connected to its power source. Don’t carry the tool with
your finger near the power switch. Be sure the power switch is in the “off” position
before connecting the tool to its power source. NEVER shut off the tool by pulling the
plug from the receptacle, unless there is an emergency.
7. STORE IDLE TOOLS PROPERLY.
NEVER leave the tool unattended.
When not in use, the tool should be stored in a dry and high or locked-up place. Keep
out of reach of children.

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8. KEEP WORK AREA CLEAN.
Cluttered work areas and benches invite injuries. Clear all work areas and work benches
of unnecessary tools, debris, furniture, etc.
9. CONSIDER WORK AREA ENVIRONMENT.
Don’t expose power tools to rain or moisture. Don’t use power tools in damp or wet
locations. Keep work area well lit and well ventilated.
Don’t use tool in presence of flammable liquids or gases.
Power tools produce sparks during operation. They also spark when switching ON/
OFF. NEVER use power tools in sites containing lacquer, paint, benzine, thinner,
gasoline, gases, adhesive agents, and other materials which are combustible or
explosive.
10. KEEP CHILDREN AND BYSTANDERS AWAY.
Do not let children and bystanders contact tool or extension cord.
All children and bystanders should be kept safely away from work area.
11. DON’T FORCE TOOL.
It will do the job safer and better at the rate for which it was intended.
12. 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. Please refer to page 12 of this manual for more information about
the proper application for this tool.
13. DRESS PROPERLY.
Do not wear loose clothing or jewelry. They can be caught in moving parts.
Rubber gloves and non-skid footwear are recommended when working outdoors.
Wear protective hair covering to contain long hair.
14. USE FACE, DUST MASK OR RESPIRATOR IF OPERATION IS DUSTY.
All persons in the area where power tools are being operated should also wear face,
dust mask or respirator.
15. DON’T ABUSE CORD.
NEVER carry tool by cord or yank it to disconnect from receptacle.
Keep cord from heat, oil and sharp edges.
16. SECURE WORKPIECE.
Use clamps or a vise to hold workpiece. It’s safer than using your hand and it frees both
hands to operate tool. NEVER reach for workpiece until the tool has come to a complete
stop.
17. DON’T OVERREACH.
Keep proper footing and balance at all times.
18. MAINTAIN TOOLS WITH CARE.
Keep tools sharp and clean for safer and better performance.
Follow instructions for lubricating and changing accessories.
Inspect tool cords periodically and if damaged, have repaired by an authorized service
center. Inspect extension cords periodically and replace if damaged.
Keep tool dry, clean, and free from oil and grease.
19. REMOVE ADJUSTING KEYS AND WRENCHES.
Check to see that keys and adjusting wrenches are removed from tool before turning it
on.

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20. OUTDOOR USE EXTENSION CORD.
When tool is used outdoors, use only extension cord intended for use outdoors and so
marked.
21. STAY ALERT.
Watch what you are doing. Use common sense. Do not operate tool when you are
tired.
Tools should NEVER be used by you if you are under the influence of alcohol, drugs or
medication that makes you drowsy.
22. REGULARLY CHECK FOR DAMAGED PARTS.
Before further use of the tool, a guard or other part that is damaged should be carefully
checked to determine that it will operate properly and perform its intended function.
Check for alignment of moving parts, binding of moving parts, breakage of parts,
mounting, and any other conditions that may affect its operation.
A guard or other part that is damaged should be properly repaired or replaced by an
authorized service center unless otherwise indicated elsewhere in this Instruction
Manual.
Have defective switches replaced by the authorized service center.
Do not use tool if switch does not turn it on and off.
23. NEVER USE A POWER TOOL FOR APPLICATIONS OTHER THAN THOSE SPECIFIED.
NEVER use a power tool for applications other than those specified in page 12 of this
manual.
Information about the normal use and application of this tool is contained in page 12 of
this manual.
24. 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.
25. CHECK FOR LIVE WIRES.
Avoid the risk of severe electrical shock by checking for live electrical wires that may be
buried in walls, floors or ceilings. The wires should be de-energized before work begins.
26. KEEP ALL SCREWS, BOLTS AND COVERS TIGHTLY IN PLACE.
Keep all screws, bolts, and covers tightly mounted. Check their condition periodically.
NEVER operate the tool unless all screws, bolts and covers are in place and in good
condition.
27. DO NOT USE POWER TOOLS IF THE PLASTIC HOUSING OR HANDLE ARE CRACKED.
Cracks in the tool’s housing or handle can lead to electric shock. Such tools should not
be used until repaired.
28. 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.
ALWAYS use only genuine Hitachi blades, cutting implements and accessories with
your tool.
29. 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.

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30. OPERATE POWER TOOLS AT THE RATED VOLTAGE.
Operate the power tool at voltages specified on their nameplates.
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 burn out the motor.
31. NEVER USE A TOOL WHICH IS DEFECTIVE OR OPERATING ABNORMALLY.
If the tool appears to be operating unusually, making abnormal noises has missing or
broken parts, or otherwise appears defective, stop using it immediately and arrange
for repairs by a Hitachi authorized service center.
32. NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF.
Don’t leave tool until it comes to a complete stop.
33. CAREFULLY HANDLE POWER TOOLS.
Should a power tool be dropped or struck against hard materials inadvertently it may
be deformed, cracked, or damaged. Check and inspect the tool for such damage before
using.
34. 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.
35. USE ONLY GENUINE HITACHI REPLACEMENT PARTS AND ACCESSOREIS.
Replacement parts and/or accessories not supplied by Hitachi may void your warranty
and can lead to malfunction and resulting in serious injuries. Genuine Hitachi parts and
authorized accessories are available from your dealer.

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REPLACEMENT PARTS AND ACCESSORIES
When servicing use only genuine Hitachi replacement parts and accessories.
Repairs should be conducted only by a Hitachi authorized service center.
POLARIZED PLUGS
To reduce the risk of electrick shock, this equipment has 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 the proper outlet.
Do not change the plug in any way.

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USE OF EXTENSION CORD
Make sure your extension cord is in good condition. When using an extension cord, be
sure to use one heavy enough to carry the current your product will draw.
An undersized cord will cause a drop in line voltage resulting in loss of power and
overheating. Table shows the correct size to use depending on cord length and nameplate
ampere rating. If in doubt, use the next heavier gage. The smaller the gage number, the
heavier the cord.
MINIMUM GAGE FOR CORD SETS
Total Length of Cord in Feet (Meter)
0 – 25 26 – 50 51 – 100 101 – 150
(0 – 7.6) (7.9 – 15.2) (15.5 – 30.5) (30.8 – 45.7)
Ampere Rating AWG
More Not More
Than Than
0 – 6 18 16 16 14
6 – 10 18 16 14 12
10 – 12 16 16 14 12
12 – 16 14 12 Not Recommended
WARNING:
Avoid electrical shock hazard. NEVER use this tool with a
damaged or frayed electrical cord or extension cord.
Inspect all electrical cords regularly. NEVER use in rain or moisture
or in any environment where electric shock is possible.

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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 “ ” 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.
SAVE THESE INSTRUCTIONS
AND
MAKE THEM AVAILABLE TO OTHER
USERS AND OWNERS
OF THIS TOOL!

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OPERATION, MAINTENANCE
AND INSPECTION
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
Collet
chuck
Bearing lid
(B)
Switch
Spindle Inner cover (B)
Nose bracket
Housing Brush cap
Tail cover
Fig. 1
SPECIFICATIONS
Motor Single-Phase, Series Commutator Motor
Power Source Single-Phase, 115V AC 60Hz
Current 4.7A
No-Load Speed 25000 rpm
Max. Wheel Diam. 1" (25 mm)
Collet Check Capacity 1/4" (6.35 mm)
Weight 4.3 lbs (1.95 kg)

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WARNING: NEVER use an abrasive wheel, cutting wheel, or any wheel greater
than 1" in diameter. Using such wheels can result in wheel breakage,
and will otherwise increase the risk of bodily injury from contact with
the wheel or wheel fragments.
ACCESSORIES
WARNING: NEVER use any accessories other than those mentioned below.
The use of any accessories other than those mentionded below or
attachments not intended for use such as cup wheel, cut-off wheel or
saw blade is dangerous and may cause personal injury or property
damage.
STANDARD ACCESSORIES
(1) Wrench (43/64’’(17mm)) (Code No.936638) ..................................................................... 1
(2) Wrench (15/32’’(12mm)) (Code No.936553) ..................................................................... 1
OPTIONAL ACCESSORIES.............. sold separately
䡬Collet chuck (for 1/8’’(3.175mm) shaft)
Dimensions and handling methods other than the shaft hole are the same as those for
the 1/4’’(6mm) collet chuck.
䡬Case
NOTE: Accessories are subject to change without any obligation on the part of the HITACHI.
APPLICATIONS
䡬Finishing of dies for press working, die casting and moulding.
䡬Finishing of thread cutting dies, tools and other small parts.
䡬Internal grinding of tools and machine parts.
WARNING: To avoid the risk of serious injury, NEVER use this grinder with abrasive
wheels, cut-off wheels and/or saw blades.

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(When =1/2’’(13mm))
d1/8’’(3.175mm) 1/4’’(6.35mm)
D3/16’’ 1/4’’ 5/16’’ 3/8’’ 1/2’’ 5/8’’ 3/4’’ 1’’
(5mm) (6mm) (8mm) (10mm) (13mm) (16mm) (20mm) (25mm)
L1/2’’ 3/4’’ 3/4’’ 3/4’’ 1-1/2’’ 1’’ 1’’ 3/4’’
(13mm) (20mm) (20mm) (20mm) (38mm) (25mm) (25mm) (20mm)
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 specified on the "USE OF EXTENSION CORD"
section on page 9. 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. Consult
an authorized electrician to make appropriate repairs.
If such a fautly receptacle is used, it may cause overheating, resulting in firing hazard.
5. Check the work site and surrounding area
Be sure that the work area has been thoroughly checked and prepared to avoid any
unsafe conditions. Review the SAFETY section of this manual.
6. Installing a wheel
WARNING: USING A WRONG SIZED WHEEL CAN CAUSE WHEEL BREAKAGE AND
RESULTING SERIOUS INJURY.
In order to avoid this hazard, refer to the following illustration to
determine the proper dimensions(s) of your wheel. Some guidelines:
(a) Dimension should always be less than 1/2" (13 mm). Longer lengths can result in
excess vibration, wheel breakage, and the chance for serious injury.
(b) When dimension d is 1/4" (6.35 mm), the diameter of the wheel (dimension D)
should be less than 1" (25 mm). NEVER use a longer diameter wheel.
(c) When dimension d is 1/8" (3.175 mm), the diameter of the wheel (dimension D)
should be less than 3/8" (10 mm).
(d) Dimension L varies according to the dimension D. Dimension L can be longer as
dimension D increase. Refer to the following table:

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Fig. 3
Spindle
Tighten
Collet chuck
Wheels can be simply attached and detached by using two wrenches. (Fig. 3)
Tapered portion
Collet chuck
Fig. 2
NOTE: 䡬Do not tighten the collet chuck by inserting a shaft thinner than the regular
shaft diameter (1/4’’(6.35mm)) in the chuck or in an empty condition. This
practice will damage the collet chuck.
䡬When installing a wheel with shaft, tighten the collet chuck after applying a
small quantity of spindle oil (or sewing machine oil) to the tapered portion
indicated in Fig. 2.

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Fig. 4
Switch
OFF
ON
GRINDER OPERATION
1. Switching operation (Fig. 4)
(1) When throwing the switch lever to the ON side, power is applied; when throwing it to
the OFF side, power is switched off.
(2) After installing a new wheel, "test" the condition of the wheel by allowing the grinder to
operate for 180 seconds while the wheel is pointed away from you. Keep your hands
and body away from the wheel at all times.
2. Precautions on operation
(1) Lightly press the wheel to the material to be ground when grinding materials, high-
speed revolution is necessary. Use a hand grinder with high-speed revolution,
minimizing the pressing force.
(2) Dressing the wheel
After attaching a wheel, adjust deflection of the wheel center by using a dresser.
If the wheel center is eccentric, not only precise finishing cannot be achieved but also
grinder vibration increases, lowering grinder accuracy and durability.
A clogged or worn wheel will soil the finishing surface or lower grinding efficiency.
Occasionally dress the wheel by applying the dresser.
MAINTENANCE AND INSPECTION
WARNING:
䢇Be sure to switch power OFF and disconnect the plug during maintenance and
inspection.
䢇Using cracked, deformed or damaged wheels can lead to wheel breakage and resulting
serious inlury.
1. Inspecting the wheel
Ensure that the 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.
WARNING: Using this portable grinder with loosened screws is extremely
dangerous.

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3. Inspecting the carbon brushes (Fig. 5)
The motor employs carbon brushes which are consumable parts. Replace the carbon
brush with a new one when it becomes worn to its wear limit. Always keep carbon
brushes clean and ensure that they slide freely within the brush holders.
CAUTION: Using this portable grinder with a carbon
brush which is worn in excess of the wear
limit will damage the motor.
NOTE: Use HITACHI carbon brush No. 21 indicated in
Fig. 5.
4. Replacing carbon brushes
Remove the brush caps (Fig. 1) with a slotted
screwdriver. The carbon brushes can then be easily
removed.
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 genuine replacement parts will be used, all
service and repairs must be performed by a HITACHI AUTHORIZED SERVICE CENTER, ONLY.
NOTE: Specifications are subject to change without any obligation on the part of the
HITACHI.
0.47" (12 mm)
0.20" (5 mm)
Wear Limit
No. of Carbon Brush
21
䊳
䊳
Fig. 5

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INFORMATIONS IMPORTANTES DE SÉCURITÉ
Lire et comprendre toutes les précautions de sécurité, les avertissements et les instructions
de fonctionnement dans ce mode d’emploi avant d’utiliser ou d’entretenir cet outil motorisé.
La plupart des accidents causés lors de l’utilisation ou de l’entretien de l’outil motorisé
proviennent d’un non respect des règles ou précautions de base de sécurité. Un accident
peut la plupart du temps être évité si l’on reconnaît une situation de danger potentiel avant
qu’elle ne se produise, et en observant les procédures de sécurité appropriées.
Les précautions de base de sécurité sont mises en évidence dans la section “SECURITE”
de ce mode d’emploi et dans les sections qui contiennent les instructions de fonctionnement
et d’entretien.
Les dangers qui doivent être évités pour prévenir des blessures corporelles ou un
endommagement de la machine sont identifiés par AVERTISSEMENTS sur l’outil motorisé
et dans ce mode d’emploi.
NE JAMAIS utiliser cet outil motorisé d’une manière qui n’est pas spécifiquement
recommandée par HITACHI.
SIGNIFICATION DES MOTS D’AVERTISSEMENT
AVERTISSEMENT indique des situations potentiellement dangereuses qui, si elles sont
ignorées, pourraient entraîner la mort ou de sérieuses blessures.
PRECAUTION indique des situations dangereuses potentilles qui, si elles ne sont pas évitées,
peuvent entraîner de mineures et légères blessures ou endommager la machine.
REMARQUE met en relief des informations essentielles.

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18
SECURITE
CONSIGNES DE SECURITE IMPORTANTES POUR L’UTILISATION
DE TOUS LES OUTILS ELECTRIQUES
AVERTISSEMENT: Une utilisation incorrecte ou dangereuse des outils
électriques peut entraîner la mort ou des blessures graves.
LIRE TOUT CE MODE D’EMPLOI
1. NE JAMAIS TOUCHER LES PARTIES MOBILES.
NE JAMAIS placer ses mains, ses doigts ou toute autre partie de son corps près des
parties mobiles de l’outil.
2. NE JAMAIS UTILISER L’OUTIL SANS QUE TOUS LES DISPOSITIFS DE SECURITE NE
SOIENT EN PLACE.
NE JAMAIS faire fonctionner cet outil sans que tous les dispositifs et caractéristiques
de sécurité ne soient en place et en état de fonctionnement. Si un entretien ou une
réparation nécessite le retrait d’un dispositif ou d’une caractéristique de sécurité,
s’assurer de bien remettre en place le dispositif ou la caractéristique de sécurité avant
de recommencer à utiliser l’outil.
3. TOUJOURS SE PROTEGER LES YEUX ET LES OREILLES.
Pour se protéger des projections de copeaux de bois, particules
métalliques ou autres débris, porter des lunettes de protection
ou un masque pour les yeux. Porter des protections anti-bruit
pour se protéger du bruit.
4. SE PROTEGER CONTRE LES DECHARGES ELECTRIQUES.
Empêcher tout contact du corps avec les surfaces mises à la terre, par exemple tuyaux,
radiateurs, plaques de cuisson et enceintes de réfrigération. NE JAMAIS faire fonctionner
l’outil dans un endroit humide ou mouillé.
5. DEBRANCHER LES OUTILS.
NE JAMAIS laisser l’outil branché dans une source d’alimentation. TOUJOURS
débrancher l’outil de la source d’alimentation avant tout travail de réparation,
d’inspection, d’entretien, de nettoyage, de remplacement ou de vérification des pièces.
6. EVITER TOUTE MISE EN MARCHE INOPINEE.
Ne pas transporter l’outil pendant qu’il est raccordé à la source d’alimentation. Ne pas
transporter l’outil avec le doigt près de l’interrupteur d’alimentation. Bien s’assurer
que l’interrupteur d’alimentation se trouve sur la position “off” (arrêt) avant de raccorder
l’outil à la source d’alimentation. NE JAMAIS éteindre l’outil en tirant la fiche de la
prise, sauf en cas d’urgence.

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7. REMISER CORRECTEMENT LES OUTILS QUE L’ON N’UTILISE PAS.
NE JAMAIS s’éloigner de l’outil pendant qu’il fonctionne.
Lorsqu’on ne se sert pas de l’outil, le remiser dans un endroit sec et en hauteur ou
fermé à clé. Veiller à ce qu’il soit hors de portée des enfants.
8. MAINTENIR L’AIRE DE TRAVAIL PROPRE.
Les aires de travail et les établis encombrés favorisent les accidents. Débarrasser l’aire
de travail et les établis des outils inutiles, débris, meubles, etc.
9. CONSIDERER L’ENVIRONNEMENT DE L’AIRE DE TRAVAIL.
Ne pas exposer les outils motorisés à la pluie ni à l’humidité. Ne pas les utiliser dans un
endroit humide ou mouillé. Veiller à ce que l’aire de travail soit bien éclairée et bien
aérée.
Ne pas utiliser l’outil en présence de liquides ou de gaz inflammables.
Les outils motorisés projettent des étincelles pendant qu’ils fonctionnent. Ils
projettent également des étincelles lorsqu’on les met en marche et qu’on les éteint.
NE JAMAIS utiliser les outils dans un lieu renfermant de la laque, de la peinture, de
la benzine, du diluant, de l’essence, des gaz, des produits adhésifs ni aucun autre
matériau combustible ou inflammable.
10. ELOIGNER LES ENFANTS ET LES SPECTATEURS.
Ne pas laisser les enfants ni les spectateurs toucher l’outil ou le cordon de rallonge.
Tous les enfants et les spectateurs devront être suffisamment éloignés de l’aire de
travail.
11. NE PAS FORCER L’OUTIL.
Il effectuera le travail avec la sécurité maximale et au mieux au régime pour lequel il a
été conçu.
12. UTILISER LE BON OUTIL.
Ne pas forcer sur un petit outil ou un petit accessoire pour faire le travail d’un outil de
grande puissance. Ne pas utiliser l’outil pour un usage pour lequel il n’a pas été conçu:
par exemple, ne pas utiliser une scie circulaire pour couper des branches d’arbre ou
des bûches. Pour les détails sur les applications de l’outil, voir la page 26 de ce mode
d’emploi.
13. SE VETIR CORRECTEMENT.
Ne pas porter de vêtements lâches ni de bijoux. Ils pourraient se prendre dans les
pièces en mouvement.
Il est recommandé de porter des gants en caoutchouc et des chaussures anti-glissantes
lors d’un travail à l’extérieur.
Porter un couvre-chef qui recouvre les cheveux longs.
14. PORTER UN MASQUE, UN MASQUE ANTI-POUSSIERE OU UN APPAREIL
RESPIRATOIRE SI LE TRAVAIL DOIT DEGAGER DE LA POUSSIERE.
Toutes les personnes présentes sur l’aire de travail devront également porter un masque,
un masque anti-poussière ou un appareil respiratoire.
15. NE PAS MALTRAITER LE CORDON.
NE JAMAIS transporter l’outil par le cordon ni tirer brusquement sur le cordon pour le
débrancher.
Eloigner le cordon de la chaleur, de la graisse et des surfaces tranchantes.
16. FIXER LA PIECE.
Utiliser des dispositifs de serrage ou un étau pour tenir la pièce. Cela sera plus sûr que
de tenir la pièce à la main et libérera les deux mains pour le travail. NE JAMAIS approcher
les mains de la pièce tant que l’outil n’est pas complètement arrêté.

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17. NE PAS TROP SE PENCHER.
Garder une bonne assise et un bon équilibre à tout moment.
18. ENTRETENIR LES OUTILS AVEC SOIN.
Maintenir les outils aiguisés et propres pour optimiser le travail et la sécurité.
Suivre les instructions de graissage et de remplacement des accessoires.
Vérifier périodiquement les cordons d’outil et les faire réparer par un centre de réparation
agréé s’ils sont endommagés. Vérifier périodiquement les cordons de rallonge et les
faire remplacer s’ils sont endommagés.
Maintenir l’outil sec et propre, et enlever toute graisse et toute huile dessus.
19. RETIRER LES CLAVETTES ET LES CLES DE REGLAGE.
Vérifier que les clavettes et les clés de réglage sont retirées de l’outil avant de le mettre
en marche.
20. CORDONS DE RALLONGE POUR UTILISATION A L’EXTERIEUR.
Si l’outil doit être utilisé dehors, utiliser exclusivement des cordons de rallonge conçus
pour un usage extérieur et marqués à cet effet.
21. RESTER SUR SES GARDES.
Bien faire attention à ce que l’on fait. Faire preuve de bon sens. Ne pas utiliser l’outil
lorsqu’on est fatigué.
NE JAMAIS utiliser l’outil si l’on est sous l’influence d’alcool, de drogues ou de
médicaments qui rendent somnolent.
22. VERIFIER REGULIEREMENT S’IL Y A DES PIECES ENDOMMAGEES.
Avant de continuer à utiliser l’outil, inspecter attentivement les protections ou autres
pièces endommagées pour voir si l’outil pourra fonctionner correctement et effectuer
le travail pour lequel il est conçu. Vérifier l’alignement et le couplage des pièces mobiles,
le voilage des pièces mobiles, la présence de pièces cassées, le montage, et toute autre
condition susceptible d’affecter le bon fonctionnement.
Si une protection ou une pièce est endommagée, la faire réparer ou remplacer par un
service après-vente agréé, sauf spécification contraire dans ce mode d’emploi.
Faire remplacer les interrupteurs défectueux par un centre de réparation agréé.
Ne pas utiliser l’outil si l’interrupteur ne fonctionne pas.
23. NE JAMAIS UTILISER UN OUTIL MOTORISE POUR DES APPLICATIONS AUTRES QUE
CELLES SPECIFIEES.
NE JAMAIS utiliser un outil motorisé pour des applications autres que celles qui sont
spécifiées à la page 26 de ce mode d’emploi.
Les informations sur l’utilisation normale et les applications de l’outil figurent à la page
26 de ce manuel.
24. MANIPULER L’OUTIL CORRECTEMENT
Utiliser l’outil de la façon indiquée dans ce mode d’emploi. Ne pas laisser tomber ou
lancer l’outil. NE JAMAIS permettre que l’outil soit utilisé par des enfants, des personnes
non familiarisées avec son fonctionnement ou un personnel non autorisé.
25. VERIFIER S’IL Y A DES FILS SOUS TENSION.
Pour éviter tout risque de choc électrique grave, vérifier s’il y a des fils électriques sous
tension encastrés dans le mur, le plancher ou le plafond. Couper l’alimentation des fils
avant le travail.