Hitachi C 7YA User Manual
MODEL DUST COLLECTION CIRCULAR SAW
MODÈLE
MODELO
C 7YA
SCIE CIRCULAIRE AVEC COLLECTEUR DE POUSSIERE
SIERRA CIRCULAR CON TOWA DE ASPIRACION
INSTRUCTION MANUAL AND SAFETY INSTRUCTIONS
WARNING
Improper and unsafe use of this power tool can result in death or serious bodily
injury!
This manual contains important information about product safety. Please read
and understand this manual before operating the power tool. Please keep this
manual available for others before they use the power tool.
MODE D’EMPLOI ET INSTRUCTIONS DE SECURITE
AVERTISSEMENT
Une utilisation incorrecte et dangereuse de cet outil motorisé peut entraîner la
mort ou de sérieuses blessures corporelles!
Ce mode d’emploi contient d’importantes informations à propos de la sécurité de
ce produit. Prière de lire et de comprendre ce mode d’emploi avant d’utiliser l’outil
motorisé. Garder ce mode d’emploi à la disponibilité des autres utilisateurs avant
qu’ils utilisent l’outil motorisé.
MANUAL DE INSTRUCCIONES E INSTRUCCIONES DE SEGURIDAD
ADVERTENCIA
¡La utilización inapropiada e insegura de esta herramienta eléctrica puede resultar
en lesiones serias o en la muerte!
Este manual contiene información importante sobre la seguridad del producto.
Lea y comprenda este manual antes de utilizar la herramienta eléctrica. Guarde
este manual para que puedan leerlo otras personas antes de que utilicen la
herramienta eléctrica.
DOUBLE INSULATION
DOUBLE ISOLATION
AISLAMIENTO DOBLE
English
IMPORTANT INFORMATION ..................... 3
MEANINGS OF SIGNAL WORDS............... 3
SAFETY ............................................................ 4
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
CONTENTS
Page
ASSEMBLY AND OPERATION ..................... 13
Page
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
Français
INFORMATIONS IMPORTANTES ............ 23
SIGNIFICATION DES MOTS
D’AVERTISSEMENT ............................. 23
SECURITE ...................................................... 24
REGLES DE SECURITE ............................. 24
SERVICE APRES-VENTE ET REPARATIONS
PIECES DE RECHANGE ............................ 30
FICHE POLARISEES .................................. 30
UTILIZATION D'UN CORDON DE RALLONGE
DOUBLE ISOLATION POUR UN
FONCTIONNEMENT PLUS SUR ......... 32
DESCRIPTION FONCTIONNELLE................. 33
NOM DES PARTIES................................... 33
SPECIFICATIONS ...................................... 33
TABLE DES MATIERES
Page
...... 30
... 31
Español
INFORMACIÓN IMPORTANTE ................. 44
SIGNIFICADO DE LAS PALABRAS DE
SEÑALIZACIÓN ....................................44
SEGURIDAD .................................................. 45
NORMAS DE SEGURIDAD ..........................
SERVICIO Y REPARACIÓN ....................... 51
PIEZAS DE REEMPLAZO .......................... 51
ENCHUFES POLARIZADOS ...................... 51
UTILIZACIÓN DE UN CABLE PROLONGADOR
AISLAMIENTO DOBLE PARA OFRECER
UNA OPERACIÓN MÁS SEGURA ....... 53
DESCRIPCIÓN FUNCTIONAL ....................... 54
NOMENCLATURA ..................................... 54
ESPECIFICACIONES .................................. 54
Página
...... 52
ÍNDICE
45
ASSEMBLAGE ET FONCTIONNEMENT ...... 34
APPLICATIONS ......................................... 34
AVANT L’UTILISATION ............................ 34
REGLAGE DE LA SCIE AVANT L'UTILISATION ..
PROCEDURES DE COUPE ........................ 37
MONTAGE ET DEMONTAGE DE LA LAME DE SIE .
UTILISATION DU SAC À POUSSIÈRE ..... 39
UTILISATION DU GUIDE-POUSSIÈRE .... 40
ENTRETIEN ET INSPECTION ....................... 41
ACCESSOIRES .............................................. 43
ACCESSOIRES STANDARD ..................... 43
ACCESSOIRES SUR OPTION ................... 43
LISTE DES PIECES ........................................ 66
MONTAJE Y OPERACIÓN ............................ 55
APLICACIONES ......................................... 55
ANTES DE LA OPERACIÓN ...................... 55
AJUSTE DE LA SIERRA ANTES DE UTILIZARLA ..
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
Page
Página
56
35
38
English
IMPORTANT INFORMATION
Read and understand all of the operating instructions, safety precautions and warnings in
the Instruction Manual before operating or maintaining this power tool.
Most accidents that result from power tool operation and maintenance are caused by the
failure to observe basic safety rules or precautions. An accident can often be avoided by
recognizing a potentially hazardous situation before it occurs, and by observing appropriate
safety procedures.
Basic safety precautions are outlined in the “SAFETY” section of this Instruction Manual and
in the sections which contain the operation and maintenance instructions.
Hazards that must be avoided to prevent bodily injury or machine damage are identified by
WARNINGS on the power tool and in this Instruction Manual.
Never use this power tool in a manner that has not been specifically recommended by
HITACHI, unless you first confirm that the planned use will be safe for you and others.
MEANINGS OF SIGNAL WORDS
WARNING indicates a potentially hazardous situations which, if ignored, could result in
serious personal injury.
CAUTION indicates a hazardous situations which, if ignored, could result in moderate
personal injury, or could cause machine damage.
NOTE emphasizes essential information.
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English
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 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.
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.
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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’t use tool for purpose not intended—for example—don’t use circular saw for cutting
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
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English
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 accessories 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.
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English
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.
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English
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.
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Fig. 6
English
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)
Vise
Fig. 7
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.
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.
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English
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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English
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 “
“Double insulation” appear on the power tool or on the nameplate.
Although this system has no external grounding, you must still follow the normal electrical
safety precautions given in this Instruction Manual, including not using the power tool in wet
environments.
To keep the double insulation system effective, follow these precautions:
䡬 Only HITACHI AUTHORIZED SERVICE CENTER should disassemble or assemble this
power tool, and only genuine HITACHI replacement parts should be installed.
䡬 Clean the exterior of the power tool only with a soft cloth moistened with soapy water,
and dry thoroughly.
Never use solvents, gasoline or thinners on plastic components; otherwise the plastic
may dissolve.
” or the words
SAVE THESE INSTRUCTIONS
AND
MAKE THEM AVAILABLE TO
OTHER USERS OF THIS TOOL!
11
English
FUNCTIONAL DESCRIPTION
NOTE:
The information contained in this Instruction Manual is designed to assist you in the safe
operation and maintenance of the power tool.
Some illustrations in this Instruction Manual may show details or attachments that differ
from those on your own power tool
NAME OF PARTS
Gear Cover
Saw Cover
Lever
(Retracting
Handle)
Base
Saw Blade
Safety Cover
(Lower Guard)
Handle
Switch
Lock Lever
Wing Bolt (B)
Lock Spring
Wing Bolt (A)
Slide Cover
Fig. 8
SPECIFICATIONS
Motor Single-Phase, Series Commutator Motor
Power Source Single-Phase 120V AC 60Hz
Max. Cutting Depth 2-3/8" (60mm)
Current 13 A
No-Load Speed 5500/min.
Weight (without cord) 11.3 lbs (5.1 kg)
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ASSEMBLY AND OPERATION
APPLICATIONS
䡬 Cutting fiber cement board
(Ex. HARDI PLANK, HARDI PANEL)
PRIOR TO OPERATION
1. Power source
Ensure that the power source to be utilized conforms to the power source requirements
specified on the product nameplate.
2. Power switch
Ensure that the switch is in the OFF position. If the plug is connected to a receptacle while
the switch is in the ON position, the power tool will start operating immediately and can
cause serious injury.
3. Extension cord
When the work area is far away from the power source, use an extension cord of sufficient
thickness and rated capacity. The extension cord should be kept as short as practicable.
WARNING: Damaged cord must be replaced or repaired.
4. Check the receptacle
If the receptacle only loosely accepts the plug, the receptacle must be repaired. Contact
a licensed electrician to make appropriate repairs.
If such a fautly receptacle is used, it may cause overheating, resulting in a serious hazard.
5. Confirming condition of the environment:
Confirm that the work site is placed under appropriate conditions conforming to
prescribed precautions.
6. Prepare a wooden workbench (Fig. 9)
Since the saw blade will extend beyond the
lower surface of the work piece, place the work
piece on a workbench when cutting. If a square
block is utilized as a workbench, select level
ground to ensure it is properly stabilized. An
unstable workbench will result in hazardous
operation.
CAUTION:
To avoid possible accident, always ensure that
the portion of work piece remaining after cutting
is securely anchored or held in position.
Work piece Base
Workbench
Fig. 9
Saw Blade
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English
7. Check if clamp lever and wing bolt are tightened.
If the wing bolt to adjust cutting depth (Fig. 12) and wing bolt to adjust angle of inclination
(Fig. 13) are loose, injury can result. Make sure that they are tightened securely.
8. Check performance of safety cover
WARNING: Make absolutely sure that the safety cover is not fixed. Also, check and
see if it can move smoothly. If the saw blade is kept exposed injury can
result.
The safety cover (refer to Fig. 8) serves to protect your body from coming into contact with
the saw blade. Make absolutely certain that the cover smoothly performs to cover the saw
blade. If the safety cover should not move smoothly, never use it without repairing it.
In such a case, get in touch with the store where you bought the circular saw or the
HITACHI Authorized Service Center for necessary repair.
9. Protective glasses and dustproof mask (Fig. 10)
When you use the tool, make certain that you wear the protective glasses and the
dustproof mask.
10.Dust bag or dust guide
Make it absolutely sure when you use the tool to
mount any one of the dust bag or dust guide
that is provided as a standard accessory. For
mounting details and refer to [use of dust bag]
in Page 17, [use of dust guide] in Page 17.
11.Check if saw blade is tightened
Refer to [mounting and dismounting the saw
blade] in Page 16, and make sure that the flange
bolt is tightened securely.
Fig. 10
ADJUSTSING THE SAW PRIOR TO USE
1. Adjustment of slide cover
WARNING:
To avoid serious accidents, ensure the switch
is in OFF position, and disconnect the plug from
the receptacle.
You can move the slide cover of the tool up and
down. The slide cover is mounted in the
lowermost position when the tool is shipped
from the factory. If you use it in the originally
mounted position for right-angle cutting, you
can reduce the scattering sawdust particles.
14
Slide
Cover
Screw
Fig. 11
When you find it difficult to inspect the blade
tip, or in case of inclined cutting, or when you
use the guide for cutting, loosen the screw,
move the slide cover upward and make
necessary adjustment before use. (For inclined
cutting, fix the slide cover in the uppermost
position.) Make sure that the screw is tightened
securely after adjustment.
2. Adjusting the cutting depth (Fig. 12)
WARNING:
If the clamp lever is loose, injury can result.
Tighten it securiely after adjustment.
To adjust cutting depth, loosen the clamp lever
and, while holding the base with one hand,
move the main body up and down to obtain the
prescribed cutting depth. After adjusting to the
prescribed cutting depth, tighten the clamp
lever securely.
3. Adjusting the angle of inclination
WARNING:
If the wing bolt is loose, injury can result.
Tighten it securiely after adjustment.
English
Loosen
Tighten
Clamp Lever
Link
Base
Fig. 12
Wing Bolt (A)
Fig. 13
NOTE: Keep the slide cover moved up to the uppermost position before making adjustment
on the angle of inclination. (Refer to [adjustment of slide cover] in Page 13)
As shown in Fig. 13 by loosening the wing-bolt on the inclined gauge, the saw blade may
be inclined to a maximum angle of 45° in relation to the base. Always ensure that the
wing-bolt is thoroughly tightened after making the desired adjustment.
4. Regulating the guide (Rip fence)
.......................................... Optional Accessory
NOTE: When mounting the guide, move the slide
cover upward to the extent where the guide
is not in touch with the slide cover. (Refer to
[adjustment of slide cover] in Page 13)
The cutting position can be regulated by moving
the guide to the left or right after loosening its
wing-bolt. The guide may be mounted on either
the right or left side of the tool. (See Fig. 14)
Wing Bolt (B), Lock Spring
Base
Guide
(Rip Fence)
Fig. 14
15
English
CUTTING PROCEDURES
WARNING:
● Never touch the moving parts.
● Should the saw blade be stopped or make an abnormol noise during operation, turn off
the switch immediately.
● Don't remove circular saw from work piece during a cut while the saw blade is moving.
● Wear protective glasses and a dustproof mask.
● Avoid cutting any material like metal, etc., that give off sparks.
CAUTION:
● Always take care in preventing the power cord from coming near the revolving saw
blade.
● Mount either of the dust bag, or dust guide before use.
● Before starting to saw, ensure that the saw blade has reached full speed revolution.
1. Place the saw body (base) on the work piece,
and as in Fig. 15 align the intended line of cut
with the saw blade, using the notch at the front
of the base. This relationship of base to work
pieces should remain unchanged regardless of
the inclination of the base.
2. The switch should be turned to the ON position
before the saw blade comes into contact with
the work piece. The switch is turned ON when
the trigger is pulled by one’s finger, and is
turned OFF when the trigger is released.
3. Moving the saw straight at a constant speed will
produce optimum cutting.
[POCKET CUTTING]
WARNING:
● To avoid serious accident, ensure the switch is
OFF position, and disconnect the plug from the
receptacle before any adjustment.
● Never tie or wedge the safety cover in a raised
position.
1. Mark the desired cutting area clearly with lines
all side. (See Fig. 16)
2. Set depth adjustment according to material to
be cut.
3. Push the safety cover lever all the way back so
the blade is exposed as shown in Fig. 16.
4. Tilt saw forward and align the notch (Fig. 15)
with the pre-marked guide line.
16
When
Inclined
45°
Fig. 15
Fig. 16
When
not
Inclined
Lever
English
5. Release the safety cover lever. When the safety cover contacts the work piece surface,
it will be in proper position to open freely when cutting is commencend.
6. Holding the saw in position, with the blade not contacting the work piece surface, pull
the trigger.
7. After the saw has reached full speed, gradually lower rear end of the saw until its base
rests on the work surface.
8. Advance saw along the cutting line up to the corner.
9. Release trigger and allow blade to stop completely before withdrawing the blade from
the work piece.
䡩 Never under any circumstances pull the saw backwards while the blade is in motion, as
kickback may result.
10. Use a jig saw or hand saw to cut the corners out clean.
11. When starting each new cut, repeat as above.
MOUNTING AND DISMOUNTING THE SAW BLADE
WARNING: To avoid serious accident ensure the switch is in the OFF position, and
disconnect the plug from the receptacle.
1. Dismounting the saw blade (Fig. 17)
To replace the saw blade, push the lock lever,
then loosen the hexagonal bolt with the wrench.
The blade comes off easily.
2. Mounting the saw blade
(1) Thoroughly remove any sawdust which has
accumulated on the spindle, bolt and washers.
(2) For mounting saw blade, the concave sides of
both washers (A) and (B) must be fitted to the
saw blade sides. Mount the saw blade on the
spindle, and finally affix washer (B) (See Fig. 18)
(3) To assure proper rotation direction of the saw
blade, the arrow direction on the saw blade
must coincide with the arrow direction on the
saw cover.
(4) Using the fingers, tighten the hexagonal bolt
retaining the saw blade as much as possible.
Then depress the lock lever, lock the spindle,
and thoroughly tighten the bolt.
(5) Confirm that the lock lever is in the original
position.
Tighten
Loosen
Hexagonal
Flange Bolt
Wrench
Fig. 17
Washer (B)
Lock Lever
Saw Blade
Washer (A)
Fig. 18
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English
USE OF DUST BAG
WARNING:
● To avoid serious accident, ensure the switch is in the OFF position, and disconnect the
plug from the receptacle.
● Never attempt to saw any material like metal and so on that give off sparks. Such action
can lead to fire or injury.
1. Mounting the dust bag
Hold the clasp of the dust bag and insert it into
the adapting mouth of the body while opening
the thrusting mouth. (Fig. 19)
2. Dumping sawdust and cleaning the
inside of dust bag
Adapting Mouth
Clasp
Dust Bag
NOTE: If too much sawdust is accumulated inside
the dust bag, the dust collector will run low
on power. Attempt to dump the sawdust as
early as you can and clean the dust bag
thoroughly so that you can enjoy your work
with strong dust collecting power.
(1) Hold the clasp, open the thrusting mouth of the
dust bag, and pull it off from the body.
(2) Open the fastener (Fig. 20) and dump the
sawdust.
Fig. 19
Fastener
Fig. 20
USE OF DUST GUIDE
WARNING:
● To avoid serious accidents, ensure the switch is in the OFF position, and disconnect the
plug from the receptacle.
● The dust guide is a component part that changes the discharge direction of sawdust and
is not a tool to collect dust. Make certain that you wear protective glasses and a
dustproof mask during the use of the dust guide.
CAUTION:
● The dust guide can change the direction of the discharge direction. Never point it in the
direction of the worker.
● Never carry the tool by the dust guide.
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English
1. Mounting the dust guide
(1) Insert the dust guide’s thrusting mouth into the
adapting mouth of the body. (Fig. 21)
(2) Turn the dust guide and point it in the desired
direction to discharge sawdust. (Fig. 22)
Thrusting Mouth
Dust Guide
Fig. 21
Fig. 22
Adapting Mouth
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English
MAINTENANCE AND INSPECTION
WARNING: To avoid serious accident, ensure the switch is in the OFF position and
disconnect the plug from the receptacle during maintenance and
inspection.
1. Inspecting the saw blade:
Since use of a dull saw blade will degrade efficiency and cause possible motor
malfunction, sharpen or replace the saw blade as soon as abrasion is noted.
CAUTION:
If a dull saw blade is used, reactive force is increased during cutting operation. Avoid
the use of the dull saw blade without repair.
2. Check the mounting screws
Loose mounting screws are dangerous. Regularly inspect them and make sure they are
tight.
CAUTION: Using this power tool with loosened screws is extremely dangerous.
0.67"
(17mm)
Fig. 24
Wear limit
38
0.24"(6mm)
No. of carbon
brush
3. Inspecting the carbon brushes (Fig. 24)
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 circular saw with a carbon brush which is worn in excess of the wear limit will
damge the motor.
NOTE: Use HITACHI carbon brush No. 38 indicated in Fig. 24.
4 Replacing carbon brushes:
Remove the brush caps with a slotted-head screwdriver. The carbon brushes can then be
easily removed.
5. Performance checkup and maintenance of safety cover
Keep the safety cover in good shape for smooth performance at all times. Be sure to make
prompt repair in case of any malfunction.
6. Adjusting the base and saw blade to maintain perpendicularity
The angle between the base and the saw blade has been adjusted to 90°, however should
this perpendicularity be lost for some reason, adjust in the following manner.
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English
(1) Turn the base face up (Fig. 25) and loosen the
wing-nut.
(2) Apply a square to the base and the saw blade
and, turning the slotted set screw with a slottedhead screwdriver, shift the position of the base
to produce the desired right angle.
Slotted Set Screw
Fig. 25
Square
Base
7. 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 and modified to incorporate the latest
technological advancements.
Accordingly, some parts (i.e. code numbers and/or design) may be changed without prior
notice.
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