Hitachi C 7WDM Safety And Instruction Manual

Model

Modèle

Modelo

C 7WDM

7-1/4” (184 mm) Worm Drive Circular Saw

Scie Circulaire Iindustrielle à Vis Sans Fin, 184 mm (7-1/4 po)

Sierra Circular de 184 mm (7-1/4 pulg.) con Transmision de

Tornillo Sin Fin

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. Garder ce

mode d’emploi à la disponibilité des autres utilisateurs et propriétaires 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.

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CONTENTS

TABLE DES MATIERES

ÍNDICE

English

Français

Español

Page

I

MPORTANT SAFETY INFORMATION .....................3

MEANINGS OF SIGNAL WORDS ............................3

MEANINGS OF SYMBOLS

.......................................3

SAFETY .......................................................................4

IMPORTANT SAFETY INSTRUCTIONS FOR

USING ALL POWER TOOLS .................................4

SPECIFIC SAFETY RULES AND SYMBOLS............8

REPLACEMENT PARTS .........................................11

GROUNDING .........................................................11

USE PROPER EXTENSION CORD ........................12

OPERATION AND MAINTENANCE .........................13

NAME OF PARTS ...................................................13

SPECIFICATIONS ...................................................14

ACCESSORIES ......................................................15

APPLICATIONS ......................................................16

Page

INFORMATIONS IMPORTANTES DE

SÉCURITÉ ........................................................... 34

SIGNIFICATION DES MOTS

D’AVERTISSEMENT ............................................ 34

SIGNIFICATION DES SYMBOLES .........................34

SECURITE ................................................................35

CONSIGNES DE SECURITE RELATIVES AUX

OUTILS ÉLECTRIQUES ......................................35

RÈGLES DE SÉCURITÉ SPÉCIFIQUES ET

SYMBOLES .........................................................40

PIECES DE RECHANGE ........................................43

MISE À LA TERRE ..................................................43

UTILISER LE CORDON DE RALLONGE

APPROPRIÉ ........................................................44

UTILISATION ET ENTRETIEN .................................45

NOM DES PIÈCES .................................................45

Página

INFORMACIÓN IMPORTANTE SOBRE

SEGURIDAD ........................................................67

SIGNIFICADO DE LAS PALABRAS DE

SEÑALIZACIÓN ...................................................67

SIGNIFICADO DE SÍMBOLOS

...............................67

SEGURIDAD .............................................................68

NORMAS DE SEGURIDAD PARA LAS

HERRAMIENTAS ELÉCTRICAS ..........................68

NORMAS Y SÍMBOLOS ESPECÍFICOS DE

SEGURIDAD ........................................................73

PIEZAS DE REEMPLAZO ......................................76

PUESTA A TIERRA .................................................76

UTILICE EL CABLE PROLONGADOR

ADECUADO .........................................................77

OPERACIÓN Y MANTENIMIENTO ...........................78

NOMENCLATURA DE PARTES .............................78

ESPECIFICACIONES .............................................79

Page

PREPARATION BEFORE OPERATION ..................16

BEFORE USING .....................................................20

BEFORE CUTTING ................................................23

PRACTICAL APPLICATIONS ..................................25

MAINTENANCE AND INSPECTION.......................30

SERVICE AND REPAIRS ........................................33

PARTS LIST ...........................................................100

Page

SPÉCIFICATIONS...................................................46

ACCESSOIRES ......................................................47

APPLICATIONS ......................................................48

PRÉPARATION AVANT L’UTILISATION ..................48

AVANT L’UTILISATION ............................................52

AVANT LA COUPE..................................................55

APPLICATIONS PRATIQUES .................................57

ENTRETIEN ET INSPECTION ................................62

SERVICE APRÈS-VENTE ET RÉPARATIONS........66

LISTE DES PIECES ...............................................100

Página

ACCESORIOS ........................................................80

APLICACIONES ......................................................81

PREPARATIVOS PREVIOS A LA

OPERACIÓN........................................................81

ANTES DE LA UTILIZACIÓN ..................................85

ANTES DEL CORTE ...............................................88

APLICACIONES PRÁCTICAS ................................90

MANTENIMIENTO E INSPECCIÓN........................95

SERVICIO Y REPARACIONES ............................... 99

LISTA DE PIEZAS ..................................................100

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English

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 identiﬁ ed by

WARNINGS on the power tool and in this Instruction Manual.

NEVER use this power tool in a manner that has not been speciﬁ cally 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.

MEANINGS OF SYMBOLS

Symbols

WARNING

The following show symbols used for the machine. Be sure that you understand their meaning

before use.

Read all safety warnings and all

instructions.

Failure to follow the warnings and

instructions may result in electric

shock, ﬁ re and/or serious injury.

Always wear eye protection.

Always wear hearing protection.

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English

SAFETY

IMPORTANT SAFETY INSTRUCTIONS

FOR USING ALL POWER TOOLS

General Power Tool Safety Warnings

WARNING: * Read all safety warnings and all instructions. Failure to follow the

warnings and instructions may result in electric shock, ﬁ re and/or

serious injury.

* Save all warnings and instructions for future reference.

The term "power tool" in the warnings refers to your mains-operated (corded) power tool or

battery-operated (cordless) power tool.

WORK AREA SAFETY

1. Keep work area clean and well lit. Cluttered or dark areas invite accidents.

2. Do not operate power tools in explosive atmospheres, such as in the presence of ﬂ ammable

liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.

3. Keep children and bystanders away while operating a power tool. Distractions can cause you

to lose control.

ELECTRICAL SAFETY

1. 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. Unmodiﬁ ed plugs and matching outlets

will reduce risk of electric shock.

2. 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.

3. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase

the risk of electric shock.

4. 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.

5. 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.

6. If operating a power tool in a damp location is unavoidable, use a residual current device

(RCD) protected supply. Use of an RCD reduces the risk of electric shock.

NOTE: The term “residual current device (RCD)” may be replaced by the term “ground fault

circuit interrupter (GFCl)” or “earth leakage circuit breaker (ELCB)”.

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English

PERSONAL SAFETY

1. 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 inﬂ uence of drugs, alcohol

or medication. A moment of inattention while operating power tools may result in serious

personal injury.

2. Use personal protective equipment. Always wear eye protection. Protective equipment such

as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate

conditions will reduce personal injuries.

3. Prevent unintentional starting. Ensure the switch is in the oﬀ position before connecting to

power source and/or battery pack, picking up or carrying the tool. Carrying power tools with

your ﬁ nger on the switch or energizing power tools that have the switch on invites accidents.

4. 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.

5. Do not overreach. Keep proper footing and balance at all times. This enables better control

of the power tool in unexpected situations.

6. 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.

7. If devices are provided for the connection of dust extraction and collection facilities, ensure

these are connected and properly used. Use of dust collection can reduce dust-related

hazards.

POWER TOOL USE AND CARE

1. 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.

2. 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.

3. Disconnect the plug from the power source and/or the battery pack from the power tool

before making any adjustments, changing accessories, or storing power tools. Such

preventive safety measures reduce the risk of starting the power tool accidentally.

4. 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.

5. Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts

and any other condition that may aﬀ ect the power tool’s operation. If damaged, have the

power tool repaired before use. Many accidents are caused by poorly maintained power

tools.

6. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting

edges are less likely to bind and are easier to control.

7. Use the power tool, accessories and tool bits etc. in accordance with these instructions,

taking into account the working conditions and the work to be performed. Use of the power

tool for operations diﬀ erent from those intended could result in a hazardous situation.

SERVICE

1. Have your power tool serviced by a qualiﬁ ed repair person using only identical replacement

parts. This will ensure that the safety of the power tool is maintained.specially designed for

your saw, for optimum performance and safety of operation.

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English

Safety instructions for all saws

CUTTING PROCEDURES

1.

DANGER:

Keep hands away from cutting area and the blade. Keep your

second hand on auxiliary handle, or motor housing. If both hands are holding the saw,

they cannot be cut by the blade.

NOTE: For curcular saws with 140 mm or smaller diameter blades, the “Keep your

second hand on auxiliary handle, or motor housing“ may be omitted.

2. Do not reach underneath the workpiece. The guard cannot protect you from the blade

below the workpiece.

3. Adjust the cutting depth to the thickness of the workpiece. Less than a full tooth of the

blade teeth should be visible below the workpiece.

4. Never hold the workpiece being cut in your hands or across your leg. Secure the

workpiece to a stable platform. It is important to support the work properly to minimise

body exposure, blade binding, or loss of control.

5. Hold the power tool by insulated gripping surfaces only, when performing an

operation where the cutting tool may contact hidden wiring or its own cord. Contact

with a “live” wire will also make exposed metal parts of the power tool “live” and could give

the operator an electric shock.

6. When ripping, always use a rip fence or straight edge guide. This improves the

accuracy of cut and reduces the chance of blade binding.

7. Always use blades with correct size and shape (diamond versus round) of arbor

holes. Blades that do not match the mounting hardware of the saw will run eccentrically,

causing loss of control.

8. Never use damaged or incorrect blade washers or bolt. The blade washers and bolt

were specially designed for your saw, for optimum performance and safety of operation.

SPECIAL SAFETY RULES FOR KICKBACK

1. Kickback causes and related warnings:

●

Kickback is a sudden reaction to a pinched, bound or misaligned saw blade, causing

an uncontrolled saw to lift up and out of the workpiece toward the operator.

●

When the blade is pinched or bound tightly by the kerf closing down, the blade stalls

and the motor reaction drives the unit rapidly back toward the operator.

●

If the blade becomes twisted or misaligned in the cut, the teeth at the back edge of the

blade can dig into the top surface of the wood causing the blade to climb out of the kerf

and jump back toward the operator.

2. Kickback is the result of saw misuse and/or incorrect operating procedures or conditions

and can be avoided by taking proper precautions as given below:

●

Maintain a ﬁ rm grip with both hands on the saw and position your arms to

resist kickback forces. Position your body to either side of the blade, but not in

line with the blade. Kickback could cause the saw to jump backwards, but kickback

forces can be controlled by the operator, if proper precautions are taken.

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English

●

When blade is binding, or when interrupting a cut for any reason, release the

trigger and hold the saw motionless in the material until the blade comes to a

complete stop. Never attempt to remove the saw from the work or pull the saw

backward while the blade is in motion or kickback may occur. Investigate and

take corrective actions to eliminate the cause of blade binding.

●

When restarting a saw in the workpiece, center the saw blade in the kerf and

check that the saw teeth are not engaged into the material. If saw blade is

binding, it may walk up or kickback from the workpiece as the saw is restarted.

●

Support large panels to minimize the risk of blade pinching and kickback.

Large panels tend to sag under their own weight. Supports must be placed under the

panel on both sides, near the line of cut and near the edge of the panel.

●

Do not use dull or damaged blades. Unsharpened or improperly set blades produce

narrow kerf causing excessive friction, blade binding and kickback.

●

Blade depth and bevel adjusting locking levers must be tight and secure before

making the cut. If blade adjustment shifts while cutting, it may cause binding and

kickback.

●

Use extra caution when sawing into existing walls or other blind areas. The

protruding blade may cut objects that can cause kickback.

LOWER GUARD FUNCTION

1. Check lower guard for proper closing before each use. Do not operate the saw if the

lower guard does not move freely and close instantly. Never clamp or tie the lower

guard into the open position. If the saw is accidentally dropped, the lower guard may be

bent. Raise the lower guard with the lower guard lifting lever and make sure it moves freely

and does not touch the blade or any other part, in all angles and depths of cut.

2. Check the operation of the lower guard spring. If the guard and the spring are not

operating properly, they must be serviced before use. Lower guard may operate

sluggishly due to damaged parts, gummy deposits, or build-up of debris.

3. The lower guard shall be retracted manually only for special cuts such as “plunge

cuts” and “compound cuts”. Raise the lower guard by the lower guard lifting lever and

as soon as the blade enters the material, the lower guard must be released. For all other

sawing, the lower guard should operate automatically.

4. Always observe that the lower guard is covering the blade before placing the saw

down on bench or ﬂ oor. An unprotected, coasting blade will cause the saw to walk

backwards, cutting whatever is in its path. Be aware of the time it takes for the blade to stop

after switch is released.

OTHERS

1. ALWAYS wear proper apparel. Do not wear loose clothing, gloves, neckties, rings,

bracelets or other jewelry which may get caught in moving parts to lead personal injury.

Wear protective hair covering to contain long hair.

2. ALWAYS wear eye protection. Any power tool can throw foreign objects into eyes and could

cause permanent eye damage. ALWAYS wear Safety Goggles (not glasses) that comply

with ANSI Safety standard Z87.1. Everyday eyeglasses have only impact–resistant lenses.

They ARE NOT safety glasses.

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English

3. Wear suitable personal protective equipment when necessary, this could include:

● hearing protection to reduce the risk of induced hearing loss;

● eye protection;

● respiratory protection which are approved by NIOSH/OSHA to reduce the risk of

inhalation of harmful dust;

● gloves for handling saw blades (saw blades shall be carried in a holder wherever

practicable) and rough material.

4. Keep alert. Never operate the saw when you feel tired or when you are under the the

inﬂ uence of any drugs, alcohol or medicationn that could aﬀ ect your ability to use the tool

properly.

5. Keep the working environment well ventilated. Some dust created by power sanding,

sawing, grinding, drilling and other construction activities contains chemicals to cause

cancer, birth defects or other reproductive harm. Therefore, work in a well ventilated area,

and work with approved safety equipment, such as those dust masks that are specially

designed to ﬁ lter out microscopic particles.

6. Avoid prolonged contact with dust from power sanding, sawing, grinding, drilling, and other

construction activities. Wear protective clothing and wash exposed areas with soap and

water. Allowing dust to get into your mouth, eyes, or lay on the skin may promote absorption

of harmful chemicals.

7. To prevent from ﬁ re or toxic reactio, never use gasoline, naphtha acetone, lacquer thinner

or similar highly volatile solvents to clean the saw.

SPECIFIC SAFETY RULES AND SYMBOLS

1. Adjustments. Before cutting be sure depth and bevel adjustments are tight.

2. Avoid cutting nails. Inspect for and remove all nails from work piece before cutting.

3. When operating the saw, keep the cord away from the cutting area and position it

so that it will not be caught on the workpiece during the cutting operation.

Operate with proper hand support, proper workpiece support, and supply cord routing away

from the work area.

WARNING:

It is important to support the work piece properly and to hold the saw ﬁ rmly to prevent

loss of control which could cause personal injury. Fig. 1 illustrates typical hand support

of the saw.

Fig. 1

A TYPICAL ILLUSTRATION OF PROPER

HAND SUPPORT WORKPIECE SUPPORT,

AND SUPPLY CORD ROUTING.

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4. 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. 2 illustrates the RIGHT way to cut oﬀ the end of board, and Fig. 3 the

WRONG way. If the work piece is short or small, clamp it down.

DON’T TRY TO HOLD SHORT PLACES BY HAND!

Fig. 2 Fig. 3

5. Never attempt to saw with the saw held upside down in a vise.

This is extremely dangerous and can lead to serious accidents. (Fig. 4)

Fig. 4

6. Before setting the tool down after completing a cut, be sure that the lower blade

guard has closed and the blade has come to a complete stop.

7. Never touch moving parts.

Never place your hands, ﬁ ngers or other body parts near the tool’s moving parts.

8. Never operate without all guards in place.

Never operate this tool without all guards or safety features in place and in proper working

order. If maintenance or servicing requires the removal of a guard or safety feature, be sure

to replace the guard or safety feature before resuming operation of the tool.

9. Use right tool.

Don’t force small tool or attachment to do the job of a heavy-duty tool.

Don’t use tool for purpose not intended —for example— don’t use the saw for cutting tree

limbs or logs.

10. Never use a power tool for applications other than those speciﬁ ed.

Never use a power tool for applications other than those speciﬁ ed in the Instruction Manual.

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11. Handle tool correctly.

Operate the tool according to the instructions provided herein. Do not drop or throw the tool.

Never allow the tool to be operated by children, individuals unfamiliar with its operation or

unauthorized personnel.

12. Keep motor air vent clean.

The tool’s motor air vent must be kept clean so that air can freely ﬂ ow at all times. Check for

dust build-up frequently.

13. Operate power tools at the rated voltage.

Operate the power tool at voltages speciﬁ ed 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.

14. Do not run the saw while carrying it at your side.

15. Keep all screws, bolts and covers tightly in place.

Keep all screws, bolts, and plates tightly mounted. Check their condition periodically.

16. Do not use power tools if the housing or handle is cracked.

Cracks in the tool’s housing or handle can lead to electric shock. Such tools should not be

used until repaired.

17. 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.

18. Never use a tool which is defective or operating abnormally.

If the tool appears to be operating unusually, making strange noises, or otherwise appears

defective, stop using it immediately and arrange for repairs by a Hitachi authorized service

center.

19. Carefully handle power tools.

Should a power tool be dropped or struck against hard materials inadvertently, it may be

deformed, cracked, or damaged.

20. Do not wipe plastic parts with solvent.

Solvents such as gasoline, thinner benzine, carbon tetrachloride, and alcohol may damage

and crack plastic parts. Do not wipe them with such solvents. Wipe plastic parts with a soft

cloth lightly dampened with soapy water and dried thoroughly.

21. Never wear gloves made of material liable to roll up such as cotton, wool, cloth or

string, etc.

22. Deﬁ nitions for symbols.

V ............. volts

Hz ........... hertz

A ............. amperes

n

0 .......... no load speed

---/min ..... revolutions per minute

........... alternating current

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English

REPLACEMENT PARTS

When servicing use only identical replacement parts.

Repairs should be conducted only by a Hitachi authorized service center.

GROUNDING

1. Grounding Instructions.

In the event of a malfunction or breakdown, grounding provides a path of least resistance

for electric current to reduce the risk of electric shock.

This power tool is equipped with 3-conductor type electric cord having an equipment-

grounding conductor and a plug with a grounding pin, as shown in Fig. 5. The plug must be

plugged into a matching receptacle that is properly installed and grounded in accordance

with all local codes and regulations.

WARNING: Do not modify the provided plug if it does not ﬁ t the receptacle.

Have a proper receptacle installed by a qualiﬁ ed electrician.

If repair or replacement of the electric cord or plug is necessary, do not connect the

equipment-grounding conductor to a live terminal.

Repair or replace damaged or worn cord immediately. This power tool is intended for use on

a circuit with a receptacle similar to the one illustrated in Fig. 5.

WARNING: Always connect the power tool to a grounded metal, permanent wiring

system: or to a system having an equipment-grounding conductor.

3-Pronged Plug

Grounding Prong

Properly Grounded

3-Pronged Receptacle

Fig. 5

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USE PROPER EXTENSION CORD

Make sure your extension cord is in good condition. Use only 3-conductor type extension cords

that have 3-prong grounding plugs and 3-pole receptacles that accept the tool’s plug. 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

(0 – 7.6)

26 – 50

(7.9 – 15.2)

51 – 100

(15.5 – 30.5)

101 – 150

(30.8 – 45.7)

Ampere Rating AWG

More

Than

Not More

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: To 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.

SAVE THESE INSTRUCTIONS

AND

MAKE THEM AVAILABLE TO

OTHER USERS

AND

OWNERS OF THIS TOOL!

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OPERATION AND MAINTENANCE

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 diﬀ er from those

on your own power tool.

NEVER operate, or attempt any maintenance on the tool unless you have ﬁ rst

read and understood all safety instructions contained in this manual.

NAME OF PARTS

MODEL C 7WDM

Fig. 6

Auxiliary handle

Rip fence

Depth adjusting locking lever

Trigger switch

Lower blade guard lifting lever

90° & 45°

guide notches

Base plate

Detent setting plate

Lower blade guard

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English

Bevel adjusting

locking lever

Bevel angle scale

Hanging hook

Rip fence locking bolt

Blade wrench storage

Arbor lock button

Switch handle

Fig. 7

SPECIFICATIONS

Item Model C 7WDM

Motor Type Universal motor

Power source Single-phase AC 60Hz

Voltage (Volts) 120

Full-load current (Amp) 15

Applicable saw

blade

Outside Dia. 7-1/4" (184 mm)

No load speed 5,000/min

Max.

sawing

dimension

Head Base plate Max. cutting dimension

Bevel

90° 0

2-3/8" (61 mm)

45° 0

1-3/4" (45 mm)

Bevel angle range 0° – 53°

Net weight 14.7 lbs. (6.7 kg)

Cord 3 Conductor type cable -

7.9f t . (2.4 m)

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ACCESSORIES

WARNING: Accessories for this power tool are mentioned in this Instruction

Manual.

The use of any other attachment or accessory can be dangerous and

could cause injury or mechanical damage.

STANDARD ACCESSORIES

1. Blade wrench (1 piece)

For how to use, refer to page 18, 31.

2. Blade (2 pieces)

Fig. 8

NOTE: Accessories are subject to change without any obligation on the part of the HITACHI.

OPTIONAL ACCESSORIES......sold separately

(1) Rip fence (HKU# 372098) (Includes (2).)

(2) Locking bolt

Fig. 9

For how to use, refer to page 27.

NOTE: Speciﬁ cations are subject to change without any obligation on the part of HITACHI.

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APPLICATIONS

The tool is designed for wood cutting applications.

WARNING:

* Use extra caution when cutting freshly cut green lumber, hardwood, wet wood,

composite wood, pressure treated wood, wood containing knots or having other

characteristics which may put a heavy load on the saw or blade. If this occurs, do

not force the tool. Push the tool more slowly, but with enough force to keep working

without much decrease in speed.

* To avoid serious injury, do not cut the metal with a metal cutting blade attached.

Also, do not use for applications other than wood cutting.

PREPARATION BEFORE OPERATION

Make the following preparations before operating the power tool:

1. Saw blade mounting and dismounting

WARNING: * Do not use a blade larger than 7-1/4" (184 mm) in diameter. To avoid

injury from an accidental start, ensure the switch is OFF position

and make sure the plug is not connected to the power source outlet.

* Make sure the blade is installed correctly and is tight before

operating.

* The tool becomes hot after tool operation.

To avoid burns, the blade replacement work should be done after

tool has cooled suﬃ ciently.

* The blade with round-shaped arbor hole that can remove knockout

must be removed in order to expose the center of the diamond-

shaped arbor in use.

* Only blades with a diamond-shaped arbor center can be used on

this saw. Never install the saw blade with the round-shaped arbor

center to avoid possible personal injury and from causing damage

to the saw.

Remove the knockout from the blade (Fig. 10)

WARNING:

* Work only with knockout-capable blades. Do not do this work for knockout

impossible blades.

* To avoid injury, always protect our eyes and hands when doing this work.

* To avoid injury or damage to blade, do not swing down the hammer full force.

* Do not hit the hammer directly against the blade.

* Make sure that all knockout parts have been removed and there are no cracks,

warp, etc. on the blade.

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English

(1) Place the blade on a hollow support as shown in

Fig. 10.

(2) Put a cushion block on the center of the knockout.

NOTE: The size of the cushion block must be larger

than the center hole of the knockout and be smaller

than the knockout.

(3) Use a hammer to knock the cushion block, so the

knockout will fall with the cushion block.

(4) If the knockout sticks on the blade, remove the

knockout by needle-nose pliers or by hands worn with

work gloves.

Mounting the blade (Fig. 11-a, Fig. 11-b Fig. 11-c, and Fig. 11-d)

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) Unplug the saw from the outlet.

(2) Place the provided blade wrench over the arbor bolt.

(3) Press the arbor lock button, holding it in ﬁ rmly while turning the blade wrench. This

will engage the arbor lock allowing the arbor bolt to be loosened with the blade

wrench. Continue to hold the arbor lock button while turning the wrench clockwise

to loosen the arbor bolt.

(4) Use the lower blade guard lifting lever to raise the lower blade guard.

(5) Remove the arbor bolt and the outer blade collar. Do not remove the inner blade

collar.

NOTE: Pay attention to the pieces removed, noting their position and

direction they face. Wipe the blade collars clean of any sawdust before

installing a new blade.

(6) Install a 7-1/4" (184 mm) blade with a diamond-shaped arbor center, making sure

the rotation arrow on the blade matches the clockwise rotation arrow on the upper

blade guard.

(7) Place the blade onto the arbor and against the inner blade collar. Then, place the

outer blade collar and thread the arbor bolt conterclockwise onto the arbor.

NOTE:

* Always ensure the diamond-shaped arbor center of the blade aligns

with the raised diamond-shaped arbor center on the inner blade collar.

* The ﬂ at side of the outer blade collar must be placed against the blade.

Do not install the outer collar with the curved side against the blade.

(8) Place the blade wrench on the arbor bolt.

(9) Press the arbor lock button, holding it in ﬁ rmly while turning the blade wrench

counterclockwise. Continue to press it in while tightening the arbor bolt securely.

NOTE: Tighten so that the diamond-shaped arbor center of blade does not

shift the diamond type protrusion of the inner blade collar. (Fig. 11-d)

(10) Slowly release the lower blade guard lifting lever.

Fig. 10

Hammer

Hollow support

Cushion block

Knockout

Blade

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English

(11) Be sure the arbor lock button is released so the blade turns freely.

NOTE:

* Be sure the arbor lock button returns to release position after releasing

the button.

* Be sure that the blade is securely and correctly ﬁ xed.

Dismounting the blade (Fig. 11-a, Fig. 11-b and Fig. 11-c)

(1) Unplug the saw from the outlet.

(2) Place the provided blade wrench over the arbor bolt.

(3) Press the arbor lock button, holding it in ﬁ rmly while turning the blade wrench. This

will engage the arbor lock allowing the arbor bolt to be loosened with the blade

wrench. Continue to hold the arbor lock button while turning the wrench clockwise

to loosen the arbor bolt.

(4) Use the lower blade guard lifting lever to raise the lower blade guard.

(5) Remove the arbor bolt, the outer blade collar, and the blade. Do not remove the

inner blade collar.

NOTE: Pay attention to the pieces removed, noting their position and

direction they face. Wipe the blade collars clean of any sawdust before

installing a new blade.

Lower blade guard

lifting lever

Lower blade guard

Arbor bolt

Fig. 11-a Fig. 11-b

Arbor lock

button

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English

Fig. 11-c

Arbor bolt

Outer

blade collar

Blade

Inner

blade collar

(DO NOT

REMOVE)

Arbor

Blade

Outer

blade collar

Arbor bolt

Inner blade

collar

(DO NOT

REMOVE)

Arbor

Fig. 11-d

Always mount with

diamond-shape in alignment.

Don’t mount with

diamond-shape misaligned.

2. Blade wrench storage

For convenient storage and prevention of loss, there is a slot in rear side of the base plate

for storing the blade wrench when not in use.

Fig. 12

Blade wrench

Base plate

Always insert in the direction in which

Blade wrench protrudes upwards.

Don’t insert in the direction in which blade

wrench protrudes downward.

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English

BEFORE USING

1. Make sure the power source is appropriate for the tool.

WARNING: Never connect the power tool unless the available AC power

source is of the same voltage as that speciﬁ ed on the nameplate

of the tool. Never connect this power tool to a DC power source.

2. Make sure the trigger switch is turned OFF.

WARNING: If the power cord is connected to the power source with the

trigger switch turned ON the power tool will start suddenly and

can cause a serious accident.

Press the trigger switch to turn on the saw; release it to shut the saw oﬀ .

After releasing the trigger switch, make sure the trigger switch has gone all the way back

and the switch is turned oﬀ .

Fig. 13

Trigger switch

3. Check the tool for visible defects.

Conﬁ rm that the tool is free of cracks or other visible damage or lack of parts.

4. Conﬁ rm that the saw blade is attached securely to the power tool.

Using the supplied blade wrench, tighten the bolt on the saw blade spindle to secure the

saw blade.

For details, see Fig. 11-a, Fig. 11-b and Fig. 11-c and Fig. 11-d in the section on “Saw blade

mounting and dismounting”.

5. Check the lower blade guard for operation.

WARNING: * Make absolutely sure that the safety cover is not ﬁ xed. Also,

check and see if it can move smoothly. If the saw blade is kept

exposed injury can result.

* If the safety cover should not move smoothly, never use it

without repairing it. In such a case, get in touch with the HITACHI

Authorized Service Center for necessary repair.

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Hitachi C 7WDM Safety And Instruction Manual

Hitachi C 7WDM Safety And Instruction Manual

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