Hitachi C 7YA Instruction Manual

DOUBLE INSULATION
DOUBLE ISOLATION
AISLAMIENTO DOBLE
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.
C 7YA
MODEL DUST COLLECTION CIRCULAR SAW
MODÈLE
SCIE CIRCULAIRE AVEC COLLECTEUR DE POUSSIERE
MODELO
SIERRA CIRCULAR CON TOWA DE ASPIRACION
MODE D’EMPLOI ET INSTRUCTIONS DE SECURITE
AVERTISSEMENT
Une utilisation incorrecte et dangereuse de cet outil motorisé peut entraîner la
mort ou de sérieuses blessures corporelles!
Ce mode d’emploi contient d’importantes informations à propos de la sécurité de
ce produit. Prière de lire et de comprendre ce mode d’emploi avant d’utiliser l’outil
motorisé. Garder ce mode d’emploi à la disponibilité des autres utilisateurs avant
qu’ils utilisent l’outil motorisé.
MANUAL DE INSTRUCCIONES E INSTRUCCIONES DE SEGURIDAD
ADVERTENCIA
¡La utilización inapropiada e insegura de esta herramienta eléctrica puede resultar
en lesiones serias o en la muerte!
Este manual contiene información importante sobre la seguridad del producto.
Lea y comprenda este manual antes de utilizar la herramienta eléctrica. Guarde
este manual para que puedan leerlo otras personas antes de que utilicen la
herramienta eléctrica.

CONTENTS
Page
IMPORTANT INFORMATION ..................... 3
MEANINGS OF SIGNAL WORDS............... 3
SAFETY ............................................................ 4
SAFETY RULES ........................................... 4
SERVICE AND REPAIRS ............................. 9
REPLACEMENT PARTS .............................. 9
POLARIZED PLUGS .................................... 9
USE OF EXTENSION CORD ..................... 10
DOUBLE INSULATION FOR SAFER
OPERATION .......................................... 11
FUNCTIONAL DESCRIPTION ....................... 12
NAME OF PARTS ...................................... 12
SPECIFICATIONS ...................................... 12
Page
ASSEMBLY AND OPERATION ..................... 13
APPLICATIONS ......................................... 13
PRIOR TO OPERATION ............................. 13
ADJUSTING THE SAW PRIOR TO USE ... 14
CUTTING PROCEDURES ......................... 16
MOUNTING AND DISMOUNTING THE
SAW BLADE ......................................... 17
USE OF DUST BAG ................................... 18
USE OF DUST GUIDE ............................... 18
MAINTENANCE AND INSPECTION ............. 20
ACCESSORIES .............................................. 22
STANDARD ACCESSORIES ..................... 22
OPTIONAL ACCESSORIES ....................... 22
PARTS LIST ................................................... 66
English
TABLE DES MATIERES
Page
INFORMATIONS IMPORTANTES ............ 23
SIGNIFICATION DES MOTS
D’AVERTISSEMENT ............................. 23
SECURITE ...................................................... 24
REGLES DE SECURITE ............................. 24
SERVICE APRES-VENTE ET REPARATIONS
...... 30
PIECES DE RECHANGE ............................ 30
FICHE POLARISEES .................................. 30
UTILIZATION D'UN CORDON DE RALLONGE
... 31
DOUBLE ISOLATION POUR UN
FONCTIONNEMENT PLUS SUR ......... 32
DESCRIPTION FONCTIONNELLE................. 33
NOM DES PARTIES................................... 33
SPECIFICATIONS ...................................... 33
Page
ASSEMBLAGE ET FONCTIONNEMENT ...... 34
APPLICATIONS ......................................... 34
AVANT L’UTILISATION ............................ 34
REGLAGE DE LA SCIE AVANT L'UTILISATION ..
35
PROCEDURES DE COUPE ........................ 37
MONTAGE ET DEMONTAGE DE LA LAME DE SIE .
38
UTILISATION DU SAC ÀPOUSSIÈRE ..... 39
UTILISATION DU GUIDE-POUSSIÈRE .... 40
ENTRETIEN ET INSPECTION ....................... 41
ACCESSOIRES .............................................. 43
ACCESSOIRES STANDARD ..................... 43
ACCESSOIRES SUR OPTION ................... 43
LISTE DES PIECES ........................................ 66
ÍNDICE
Página
INFORMACIÓN IMPORTANTE ................. 44
SIGNIFICADO DE LAS PALABRAS DE
SEÑALIZACIÓN .................................... 44
SEGURIDAD .................................................. 45
NORMAS DE SEGURIDAD ..........................
45
SERVICIO Y REPARACIÓN ....................... 51
PIEZAS DE REEMPLAZO .......................... 51
ENCHUFES POLARIZADOS ...................... 51
UTILIZACIÓN DE UN CABLE PROLONGADOR
...... 52
AISLAMIENTO DOBLE PARA OFRECER
UNA OPERACIÓN MÁS SEGURA ....... 53
DESCRIPCIÓN FUNCTIONAL ....................... 54
NOMENCLATURA ..................................... 54
ESPECIFICACIONES .................................. 54
Página
MONTAJE Y OPERACIÓN ............................ 55
APLICACIONES ......................................... 55
ANTES DE LA OPERACIÓN ...................... 55
AJUSTE DE LA SIERRA ANTES DE UTILIZARLA ..
56
PROCEDIMIENTOS DE CORTE................. 58
MONTAJE Y DESMONTAJE DE LA
CUCHILLA DE LA SIERRA ................... 59
USO DE LA BOLSA PARA EL POLVO ...... 60
USO DE LA GUIA PARA EL POLVO ......... 61
MANTENIMIENTO E INSPECCIÓN .............. 62
ACCESORIOS ................................................ 64
ACCESORIOS ESTÁNDAR ....................... 64
ACCESORIOS OPCIONALES .................... 64
LISTA DE PIEZAS .......................................... 66
Français
Español

English
3
IMPORTANT INFORMATION
Read and understand all of the operating instructions, safety precautions and warnings in
the Instruction Manual before operating or maintaining this power tool.
Most accidents that result from power tool operation and maintenance are caused by the
failure to observe basic safety rules or precautions. An accident can often be avoided by
recognizing a potentially hazardous situation before it occurs, and by observing appropriate
safety procedures.
Basic safety precautions are outlined in the “SAFETY”section of this Instruction Manual and
in the sections which contain the operation and maintenance instructions.
Hazards that must be avoided to prevent bodily injury or machine damage are identified by
WARNINGS on the power tool and in this Instruction Manual.
Never use this power tool in a manner that has not been specifically recommended by
HITACHI, unless you first confirm that the planned use will be safe for you and others.
MEANINGS OF SIGNAL WORDS
WARNING indicates a potentially hazardous situations which, if ignored, could result in
serious personal injury.
CAUTION indicates a hazardous situations which, if ignored, could result in moderate
personal injury, or could cause machine damage.
NOTE emphasizes essential information.

English
4
SAFETY
SAFETY RULES
WARNING: Death or serious bodily injury could result from improper or unsafe use
of power tools. To avoid these risks, follow these basic safety instruc-
tions:
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.
7. STORE TOOL PROPERLY.
When not in use, the tool should be stored in a dry place. Keep out of reach of children.
Lock-out the storage area.
8. KEEP WORK AREA CLEAN.
Cluttered areas and benches invite injuries. Clear all work areas and work benches of
unnecessary tools, debris, furniture, etec.
9. CONSIDER WORK AREA ENVIRONMENT.
Don’t expose power tools to rain. 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.

English
5
10. KEEP CHILDREN AWAY.
Do not let visitors contact tool or extension cord.
All visitors should be kept safely away from work area.
11. DON’T FORCE TOOL.
It will do the job better and safer 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’tusetoolforpurposenotintended—forexample—don’tusecircularsawforcutting
tree limbs or logs.
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 WORK.
Use clamps or a vise to hold work. It’s safer than using your hand and it frees both hands
to operate tool.
17. DON’T OVERREACH.
Keep proper footing and balance at all times.
18. MAINTAIN TOOLS WITH CARE.
Keep tools sharp and clean for better and safer 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 handles dry, clean, and free from oil and grease.
19. REMOVE ADJUSTING KEYS AND WRENCHES.
Keys and adjusting wrenches remove from tool before turning it on.
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. CHECK 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.

English
6
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 the Instruction
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 plates tightly mounted. Check their condition periodically.
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 acces-
sories which have been mounted to the tool should be secure and tight.
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.
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, 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.
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. WHEN REPLACING A COMPONENT PART, ADOPT THE SAME TYPE. When replacing a
component part with a new one, adopt the same type of new part. Also, never attempt
to repair a power tool yourself.
36. KEEP GUARDS IN PLACE AND IN WORKING ORDER. Never wedge of tie lower guard
open. Check operation of lower guard before each use. Do not use if lower guard dose
not close briskly over saw blade.
CAUTION: If saw is dropped, lower guard may be bent, restricting full return.

English
7
37. KEEP BLADES CLEAN AND SHARP. Sharp blades minimize stalling and kickback.
38. DANGER: KEEP HANDS AWAY FROM CUTTING AREA. Keep hands away from blades.
Do not reach underneath work while blade is rotating. Do not attempt to remove cut
material when blade is moving.
CAUTION: Blades coast after turn off.
39. SURRPORT LARGE PANELS. Large panels must be supported as shown in Fig. 1 to
minimize the risk of blade pinching and kickback. When cutting operation requires the
resting of saw on the work piece, the saw shall be rested on the larger portion and the
smaller piece cut off.
To avoid kickback, do support board Don't support board or panel away
or panel near the cut. from the cut.
Fig. 1 Fig. 2
40. USE RIP FENCE. Always use a fence or straight edge guide when ripping.
41. WARNING: It is important to support the work piece properly and to hold the saw firmly
to prevent loss of control which could cause personal injury. Fig. 3 illustrates typical
hand support of the saw. When operating the saw, keep the cord away from the cutting
area and position it so that it will not be caught on the work piece during the cutting
operation.
A TYPICAL ILLUSTRATION OF PROPER HAND SUPPORT.
WORK PIECE SUPPORT, AND SUPPLY CORD ROUTING
Fig. 3
42. GUARD AGAINST KICKBACK. Kickback occurs when the saw stalls rapidly and is driven
back towards the oprator. Release switch immediately if blade binds or saw stalls.

English
8
Keep blades sharp.
Support large panels as shown in Fig. 1.
Use fance or straight edge guide when ripping.
Don't fence tool.
Stay alert exercise control.
Don't remove saw from work during a cut while the blade is moving.
43. LOWER GUARD. Raise lower guard with the retracing handle (Lever).
44. ADJUSTMENTS. Before cutting be sure depth and bevel adjustments are tight.
45. USE ONLY CORRECT BLADES IN MOUNTING. Do not use blade with incorrect size
holes.
Never use defective or incorrect blade washers or bolts.
46. AVOID CUTTING NAILS. Inspect for and remove all nails from work piece before
cutting.
47. DO NOT RUN THE SAW WHILE CARRYING IT AT YOUR SIDE.
48. Place the wider portion of the saw base on that part of the work piece which is solidly
supported, not on the section that will fall off when the cut is made. As examples, Fig.
4 illustrates the RIGHT way to cut off the end of board, and Fig. 5 the WRONG way. If the
work piece is short or small, clamp is down.
DON’T TRY TO HOLD SHORT PLACES BY HAND!
Fig. 4 Fig. 5
49. Use extra caution when making a “Pocket
Cut”into existing walls or other blind areas.
The protruding blade may cut objects that can
cause KICKBACK.
NEVER place your hand or fingers behind the
saw. If kickback occurs, the saw could easily
jump backwards over your hand, possibly
causing severe injury.
Fig. 6

English
9
50. Before setting the tool down after completing a cut, be sure that the lower (telescoping)
guard has closed and the blade has come to a complete stop.
51. Never attempt to saw any material like metal and so on that give off sparks. Such action
can lead to fire or injury.
52. Never attempt to saw with the circular saw
held upside down in a vise. This is extremely
dangerous and can lead to serious accidents.
(Fig. 7)
Fig. 7
SERVICE AND REPAIRS
All quality power tools will eventually require servicing or replacement of parts because of
wearfrom 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.
REPLACEMENT PARTS
When servicing use only identical replacement parts.
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.
Vise

English
10
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 –618161614
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 or near water or in any
environment where electric shock is possible.
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