Panasonic EY4640 User Manual

Cordless Angle Grinder

Meule d'angle sans ﬁ l

Amoladora angular inalámbrica

Operating Instructions

Instructions d'utilisation

Manual de instrucciones

Model No: EY4640

IMPORTANT

This manual contains safety information. Read manual completely before first using this product and save this manual for future use.

IMPORTANT

Ce mode d’emploi contient des informations sur la sécurité. Lisez-le en entier avant d’utiliser le produit et conservez-le pour référence.

IMPORTANTE

Este manual contiene información de seguridad. Lea completamente este manual antes de utilizar por primera vez este producto, y guárdelo para poder consultarlo en el futuro.

Index/Index/Indice

English: Page 4 Français: Page 22 Español: Página 42

FUNCTIONAL DESCRIPTION DESCRIPTION DES FONCTIONS DESCRIPCIÓN FUNCIONAL

(B)

(A)

(P)

(J)

(I)

(C)

(D) (E) (F)

(G)

(H)

(Q)

(S)

(T)

(R)

Ni-MH Ni-Cd

(O)

(L)

(M)

(N)

(U)

(K)

(V)

(W)

2 -

Power switch Interrupteur d’alimentation Interruptor de alimentación

(A)

Brush cap Capuchon des charbons Tapa de cepillo

(B)

Display panel Ecran d'afﬁ chage Panel de exhibición

(C)

Battery low warning lamp

(D)

On lock warning lamp

(E)

Overheat warning lamp

(F)

(battery) Battery pack (EY9L40) Batterie autonome (EY9L40) Batería (EY9L40)

(G) (H)

Alignment mark Battery pack release button

(I)

Brush cap cover

(J)

Support handle Manche de support Mango de soporte

(K)

Support handle mounting

(L)

hole Grinding disc guard Carter de disque abrasif

(M)

Grinding disc guard ﬁ xing

(N)

screw Spindle Axe Eje

(O)

Spindle lock button Bouton de blocage de l'axe Botón de bloqueo de eje

(P)

(Q)

Li-ion battery pack dock Battery charger (EY0L80) Chargeur de batterie (EY0L80) Cargador de batería (EY0L80)

(R)

NI-MH/Ni-Cd battery pack

(S)

dock Battery pack cover

(T)

Clamp nut Écrou de serrage de collier Tuerca de abrazadera

(U)

Disc ﬂ ange Flasque du disque Brida de disco

(V)

Disc wrench Clé de disque Llave de disco

(W)

Témoin d’avertissement de batterie basse Témoin d'avertissement à verrou activé Témoin d’avertissement de

surchauffe (batterie)

Marque d'alignement Marca de alineación Bouton de libération de batterie autonome Couvercle de capuchon des charbons

Oriﬁ ce de montage du manche de support

Vis de ﬁ xation du carter de disque abrasif

Poste d’accueil de la batterie autonome Li-ion

Poste d’accueil de la batterie autonome Ni-MH/Ni-Cd

Couvercle de la batterie autonome

Luz de aviso de baja carga de batería Luz de advertencia de bloqueo Luz de advertencia de sobreca-

lentamiento (batería)

Botón de liberación de batería Cubierta de tapa de cepillo

Oriﬁ cio de montaje de mango de soporte

Protección de disco de desbastado Tornillo de ﬁ jación de protector

de disco de amoladora

Enchufe de carga de batería Li-ión

Enchufe de carga de batería Ni-MH/Ni-Cd

Cubierta de la batería

3 -

I. INTRODUCTION

Thank you for purchasing the Panasonic Angle Grinder. The powerful grinding action of this tool, combined with the convenience of its rechargeable battery pack, provides you with great grinding performance.

This Angle Grinder is only to be used for grinding and cutting-off.

DANGER:

This product is a grinding tool, designed to grind. It has a rotating disc which is capable of cutting you deeply, causing serious injury or death. As a result, please read this manual and the cautionary markings on the tool carefully, and obey all of the Safety Instructions to avoid such injury.

WARNING:

To reduce the risk of injury, always use proper guards when grinding.

How to Use This Manual

• Please read this manual completely

before starting to use your grinder. If you let someone else use the grinder, make sure they either read this manual or are fully instructed in the proper use and all safety precautions concerning the grinder.

• Please keep this manual for future ref-

erence. It contains important safety information that you must follow to use the grinder safely.

• This manual and product use the fol-

lowing signal words:

NOTE:

Notes provide additional information that you should know about the grinder.

CAUTION:

Caution indicates a potentially hazardous situation, which could result in minor or moderate injury if not avoided. Cautions also alert you to unsafe practices to be avoided.

WARNING:

Warning indicates a potentially hazardous situation, which could result in serious injury or death if not avoided.

DANGER:

Danger indicates an imminent hazard which will result in serious injury or death if not avoided.

II. GENERAL SAFETY

RULES

WARNING! Read all instructions

Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury. The term “power tool” in all of the warnings listed below refers to your main operated (corded) power tool and battery operated (cordless) power tool.

SAVE THESE INSTRUCTIONS

Work Area Safety

1) Keep work area clean and well lit. Cluttered or dark areas invite acci-

dents.

2) Do not operate power tools in

explosive atmospheres, such as in the presence of flammable liquids, gases or dust.

Power tools create sparks which

may ignite the dust 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.

Unmodified plugs and matching out-

lets will reduce risk of electric shock.

2) Avoid body contact with earthed

or grounded surfaces such as pipes, radiators, ranges and refrigerators.

4 -

There is an increased risk of elec-

tric 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 in-

crease 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 in-

crease 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.

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 influence of drugs, alcohol or medication.

A moment of inattention while oper-

ating power tools may result in per- sonal injury.

2) Use safety equipment. Always

wear eye protection.

Safety equipment such as dust

mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.

3) Avoid accidental starting. En-

sure the switch is in the off position before plugging in.

Carrying power tools with your fin-

ger on the switch or plugging in the 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 jewelry. Keep your hair, clothing and gloves away from moving parts.

Loose clothes, jewelry 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 these devices 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 con-

trolled 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 af-

5 -

fect the power tools 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 and in the manner intended for the particular type of power tool, taking into account the working conditions and the work to be performed.

Use of the power tool for opera-

tions different from those intended could result in a hazardous situation.

Battery Tool Use and Care

1) Ensure the switch is in the off

position before inserting battery pack.

Inserting battery pack into pow-

er tools that have the switch on invites accidents.

2) Recharge only with the charger

specified by the manufacturer.

A charger that is suitable for one

type of battery pack may create a risk of fire when used with another battery pack.

3) Use power tools only with spe-

cifically designated battery packs.

Use of any other battery packs may

create a risk of injury and fire.

4) When battery pack is not in use,

keep it away from other metal objects like paper clips, coins, keys, nails, screws, or other small metal objects that can make a connection from one terminal to another.

Shorting the battery terminals to-

gether may cause burns, or a fire.

5) Under abusive conditions, liq-

uid may be ejected from battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help.

Liquid ejected from the battery may

cause irritation or burns.

Service

1) Have your power tool serviced by

a qualified repair person using only identical replacement parts.

This will ensure that the safety of

power tool is maintained.

Safety instructions for all operations

Safety warning common for Grinding or Abrasive Cutting-off operations:

1) This power tool is intended to

function as a grinder, or cut-off tool. Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all in-

structions listed below may result in electric shock, fire and/or serious injury.

2) Operations such as sanding,

wire brushing, polishing are not recommended to be performed with this power tool. Operations

for which the power tool was not designed may create a hazard and cause per-sonal injury.

3) Do not use accessories which

are not specifically designed and recommended by the tool manufacturer. Just because the acces-

sory can be attached to your power tool, it does not assure safe operation.

4) The rated speed of the accesso-

ry must be at least equal to the maximum speed marked on the power tool. Accessories running

faster than their RATED SPEED can break and fly apart.

5) The outside diameter and the

thickness of your accessory must be within the capacity rat-

6 -

ing of your power tool. Incorrectly sized accessories cannot be adequately guarded or controlled.

6) The arbour size of wheels, flang-

es, backing pads or any other accessory must properly fit the spindle of the power tool. Acces-

sories with arbour holes that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.

7) Do not use a damaged acces-

sory. Before each use inspect the accessory such as abrasive wheels for chips and cracks. If power tool or accessory is dropped, inspect for damage or install an undamaged accessory. After inspecting and installing an accessory, position yourself and bystanders away from the plane of the rotating accessory and run the power tool at maximum no-load speed for one minute. Damaged accessories will

normally break apart during this test time.

8) Wear personal protective equip-

ment. Depending on application, use face shield, safety goggles or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves and workshop apron capable of stopping small abrasive or workpiece fragments. The eye protection must be capable of stopping flying debris generated by various operations. The eye protection

must be capable of stopping flying debris generated by various operations. The dust mask or respirator must be capable of filtrating particles generated by your operation. Prolonged exposure to high intensity noise may cause hearing loss.

9) Keep bystanders a safe dis-

tance away from work area. Anyone entering the work area must wear personal protective equipment. Fragments of workpiece

or of a broken accessory may fly

away and cause injury beyond immediate area of operation.

10) Hold power tool by insulated

gripping surfaces only, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting

a “live” wire may make exposed metal parts of the power tool “live” and shock the operator.

11) Position the cord clear of the

spinning accessory. If you lose control, the cord may be cut or snagged and your hand or arm may be pulled into the spinning accessory.

12) Never lay the power tool down

until the accessory has come to a complete stop. The spinning ac-

cessory may grab the surface and pull the power tool out of your control.

13) Do not run the power tool while

carrying it at your side. Accidental contact with the spinning accessory could snag your clothing, pulling the accessory into your body.

14)

Regularly clean the power tool’s air vents. The motor’s fan will draw

the dust inside the housing and excessive accumulation of powdered metal may cause electrical hazards.

15) Do not operate the power tool

near flammable materials. Sparks could ignite these materials.

16) Do not use accessories that re-

quire liquid coolants. Using water or other liquid coolants may result in electrocution or shock.

7 -

Further safety instructions for all operations

Kickback and Related Warnings

Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing pad, brush or any other accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory’s rotation at the point of the binding. For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is entering into the pinch point can dig into the surface of the material causing the wheel to climb out or kick out. The wheel may either jump toward or away from the operator, depending on direction of the wheel’s movement at the point of pinching. Abrasive wheels may also break under these conditions. Kickback is the result of power tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below.

1) Maintain a firm grip on the power tool and position your body and arm to allow you to resist kickback forces. Always use auxiliary handle, if provided, for maximum control over kickback or torque reaction during start-up.

The operator can control torque reactions or kickback forces, if proper precautions are taken.

2) Never place your hand near the rotating accessory. Accessory

may kickback over your hand.

3) Do not position your body in the area where power tool will move if kickback occurs. Kickback will

propel the tool in direction opposite to the wheel’s movement at the point of snagging.

4) Use special care when working corners, sharp edges etc. Avoid bouncing and snagging the accessory. Corners, sharp edges or

bouncing have a tendency to snag the rotating accessory and cause loss of control or kickback.

5) Do not attach a saw chain woodcarving blade or toothed saw blade. Such blades create frequent

kickback and loss of control.

Additional safety instructions for grinding and cutting-off operations

Safety warnings specific for Grinding and Abrasive Cutting-off operations:

1) Use only wheel types that are recommended for your power tool and the specific guard designed for the selected wheel.

Wheels for which the power tool was not designed cannot be adequately guarded and are unsafe.

2) The guard must be securely attached to the power tool and positioned for maximum safety, so the least amount of wheel is exposed towards the operator. The

guard helps to protect operator from broken wheel fragments and accidental contact with wheel.

3) Wheels must be used only for recommended applications. For example: do not grind with the side of cut-off wheel. Abrasive

cut-off wheels are intended for peripheral grinding, side forces applied to these wheels may cause them to shatter.

Always use undamaged wheel flanges that are of correct size and shape for your selected wheel. Proper wheel flanges sup-

port the wheel thus reducing the possibility of wheel breakage. Flanges for cut-off wheels may be different from grinding wheel flanges.

5) Do not use worn down wheels from larger power tools. Wheel

intended for larger power tool is not suitable for the higher speed of a smaller tool and may burst.

8 -

Additional Safety Warnings Specific for Abrasive CuttingOff Operations:

1) Do not “jam” the cut-off wheel or apply excessive pressure. Do not attempt to make an excessive depth of cut. Overstressing

the wheel increases the loading and susceptibility to twisting or binding of the wheel in the cut and the possibility of kickback or wheel breakage.

Do not position your body in line with and behind the rotating wheel. When the wheel, at the

point of operation, is moving away from your body, the possible kickback may propel the spinning wheel and the power tool directly at you.

3) When wheel is binding or when interrupting a cut for any reason, switch off the power tool and hold the power tool motionless until the wheel comes to a complete stop. Never attempt to remove the cut-off wheel from the cut while the wheel is in motion otherwise kickback may occur. Investigate

and take corrective action to eliminate the cause of wheel binding.

4) Do not restart the cutting operation in the workpiece. Let the wheel reach full speed and carefully reenter the cut. The wheel

may bind, walk up or kickback if

the power tool is restarted in the workpiece.

5) Support panels or any oversized workpiece to minimize the risk of wheel pinching and kickback.

Large workpieces tend to sag under their own weight. Supports must be placed under the workpiece near the line of cut and near the edge of the workpiece on both sides of the wheel.

6) Use extra caution when making a “pocket cut” into existing walls or other blind areas. The

protruding wheel may cut gas or water pipes, electrical wiring or objects that can cause kickback.

Symbol Meaning

V Volts

Direct current

… min

-1

Rated speed

Revolutions or

reciprocation per minutes Electrical capacity of bat-

tery pack

To reduce the risk of

injury, user must read and

understand instruction

manual.

For indoor use only.

Always wear eye protec-

tion

WARNING:

Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:

* Lead from lead-based paints * Crystalline silica from bricks and

cement and other masonry products

* Arsenic and chromium from chem-

ically-treated lumber.

To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as dust masks that are specially designed to filter the microscopic particles.

9 -

III. FOR BATTERY

CHARGER & BATTER Y PACK

Important Safety Instructions

1) SAVE THESE IN STRUCTIONS

-This manual contains important safety and operating instructions for battery charger EY0L80.

Before using battery charger, read all instructions and cautionary markings on (1) battery charger, (2) battery pack.

3) CAUTION - - To reduce the risk of injury, charge only Panasonic Battery Pack as shown in last page. Other types of batteries may burst causing personal injury and damage.

4) Do not expose charger to rain or snow.

5) To reduce the risk of damaging the electric plug and cord, pull by plug rather than cord when disconnecting charger.

6) Make sure cord is located so that it will not be stepped on, tripped over, or otherwise subjected to damage or stress.

7) An extension cord should not be used unless absolutely necessary.

Use of improper extension cord

could result in a risk of fire and electric shock. If extension cord must be used, make sure:

a. that pins on plug of extension

cord are the same number, size and shape as those of plug on charger.

b. that extension cord is proper-

ly wired and in good electrical condition.

c. that wire size is large enough

for ampere rating of charger as specified below.

RECOMMENDED MINIMUM AWG SIZE OF

AC Input Rating.

Equal to or greater than

0 2 18 18 18 16

EXTENSION CORDS FOR

BATTERY CHARGERS

Amperes

But less than

AWG Size of Cord

Length of Cord, Feet

25 50 100 150

8) Do not operate charger with damaged cord or plug – replace them immediately.

9) Do not operate charger if it has received a sharp blow, been dropped, or otherwise damaged in any way; take it to a qualified serviceman.

10) Do not disassemble charger; take it to a qualified serviceman when service or repair is required. Incorrect reassembly may result in a risk of electric shock or fire.

11) To reduce the risk of electric shock, unplug charger from outlet before attempting any maintenance or cleaning.

12) Th e charger and battery pack are specifically designed to work together. Do not attempt to charge any other cordless tool or battery pack with this charger.

13) Do not attempt to charge the battery pack with any other charger.

14) Do not attempt to disassemble the battery pack housing.

15) Do not store the tool and battery pack in locations where the tempera ture may reach or exceed 50°C (122°F) (such a metal tool shed, or a car in the summer), which can lead to deterioration of the storage battery.

16) Do not charge battery pack when the temperature is BELOW 0°C (32°F) or ABOVE 40°C (104°F). This is very important.

17) Do not incinerate the battery pack. It can explode in a fire.

18) Avoid dangerous environment. Do not use charger in damp or wet locations.

19) The charger is designed to operate on standard household electrical power only. Do not attempt to use it on any other voltage!

20) Do not abuse cord. Never carry charger by cord or yank it to disconnect from outlet. Keep cord away from heat, oil and sharp edges.

21) Charge the battery pack in a well ventilated place, do not cover the

10 -

charger and battery pack with a cloth, etc., while charging.

22) Use of an attachment not recommended may result in a risk of fire, electric shock, or injury to persons.

23) Do not short the battery pack. A battery short can cause a large current flow, over heating and burns.

24) NOTE: If the supply cord of this appliance is damaged, it must only be replaced by a repair shop appointed by the manufacturer, because special purpose tools are required.

25)

TO REDUCE THE RISK OF ELECTRIC SHOCK, THIS APPLIANCE 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 .

WARNING:

• Do not use other than the Panasonic battery packs that are designed for use with this rechargeable tool.

• Do not dispose of the battery pack in a fire, or expose it to excessive heat.

• Do not drive the likes of nails into the battery pack, subject it to shocks, dismantle it, or attempt to modify it.

• Do not allow metal objects to touch the battery pack terminals.

• Do not carry or store the battery pack in the same container as nails or similar metal objects.

• Do not charge the battery pack in a high-temperature location, such as next to a fire or in direct sunlight. Otherwise, the battery may overheat, catch fire, or explode.

• Never use other than the dedicated charger to charge the battery pack. Otherwise, the battery may leak, overheat, or explode.

• After removing the battery pack from the tool or the charger, always reattach the pack cover. Otherwise, the battery contacts could be shorted, leading to a risk of fire.

IV. ASSEMBL Y

NOTE:

When attaching or removing a slide handle, disconnect battery pack from tool.

CAUTION:

• Always be sure that the side handle is installed securely before operation.

Screw the side handle securely as shown in the figure.

CAUTION:

• Never actuate the lock pin when the spindle is rotating. The tool may be damaged.

Press the lock button to prevent spindle rotation when installing or removing parts, such as grinding disc, disc guard, etc.

Installing or removing disc

Inspection before use

• Has the correct grinding disc been mounted for the object to be ground?

• Has the proper diameter of the grinding disc been mounted for the tool rating?

• Has the proper grinding disc complied to safety standard listed below been mounted?

U.S.A, Canada - ANSI

1. Grinding disc

guard

2. Spindle

3. Grinding disc

guard fixing

screw

11 -

CAUTION:

• When using, the Grinding disc guard must be installed on the tool so that the closed side of the guard always faces toward the operator.

• Ensure that blotters are used when they are provided with the bonded abrasive product and when they are required;

Attaching or Removing Battery Pack

1. To connect the battery pack: Line up the alignment marks and at-

tach the battery pack.

• Slide the battery pack until it locks into position.

WARNING:

• Always use supplied guard when using tool. Grinding disc can shatter during use and Grinding disc guard helps to reduce chances of personal injury.

1. Install the Grinding disc guard, and then securely tighten the screw.

1. Clamp nut

Make sure the side.

2. Grinding disc

3. Disc flange

2. Install the disc flange and the disc to the spindle in order as shown in the figure.

3. Tighten the clamp nut onto the spindle so that hollow side faces opposite direction to the disc.

4. Push the Spindle lock button to secure the spindle in place, and then use the clamp nut wrench to tighten the clamp nut securely.

1. Spindle lock

button

Alignment marks

2. To remove the battery pack: Push on the button from the front to

release the battery pack.

Button

V. OPERATION

NOTE:

Be aware that this tool is always in an operating condition, since it does not have to be plugged into an electrical outlet.

Power switch operation

1. Power switch

5. To remove the grinding disc, follow the installation procedure in reverse.

CAUTION:

• Before inserting the battery pack into the tool, always make sure that the power switch operates position when the rear of the power switch is depressed.

• Power switch can be locked in “ON” position. Stay alert when locking tool in “ON” position and grasp the tool firmly using support handle and grip.

12 -

To start the tool, press and slide the power switch toward the “ON” posi-tion. For continuous operation, press the front of the power switch to lock it.

To stop the tool, press the rear of the power switch, then slide it toward the “OFF” position.

WARNING:

• It should never be necessary to force the tool. The weight of the tool applies adequate pressure. Forcing and excessive pressure could cause dangerous grinding disc breakage.

• ALWAYS replace grinding disc if tool is dropped while grinding.

• NEVER bang or hit grinding disc.

• Avoid bouncing and snagging the grinding disc, especially when working corners, sharp edges etc. This can cause loss of control and kickback.

CAUTION:

• After operation, always switch off the tool and wait until the wheel has come to a complete stop before putting the tool down.

Grinding operation

ALWAYS hold the tool firmly with one hand on grip and the other on the side handle. Turn on the tool on and then apply the wheel or disc to the workpiece.

In general, keep the edge of the wheel or grinding disc at an angle of about 15 degrees to the workpiece surface.

When using a new grinding disc, do not work the grinder in the B direction or it will cut into the workpiece. Once the edge of the grinding disc has been rounded off by use, the grinding disc may be worked in both A and B direction.

Visual inspection and workout test on disc

1. Always make sure that the disc has no cracks before use.

2. Always give workout test on the blade as follows.

3. Always make sure the disc is firmly fixed.

Work out time

Brand new disc more than 3 min.

Before use on

current disc

more than 1 min.

13 -

Using a cut-off disc guard (EY9X213E) (Available as an accessory, not included)

Make sure the side.

WARNING:

• When using an abrasive cut-off disc, be sure to use only the cutoff disc guard designed for this use with cut-off disc.

• NEVER use cut-off disc for grinding.

• Do not jam the Disc or apply excessive pressure. Do not attempt to make an excessive depth of cut. Overstressing the cut-off disc increases the loading and susceptibility to twisting or binding of the cut-off disc in the cut and the possibility of kickback, cut-off disc breakage and overheating of the motor may occur.

• Do not start when disc is in the workpiece. T o do so causes the cutoff disc binding or kickback. Let the cut-off disc reach full speed and then carefully cut the workpiece.

• During cutting operations, never change the angle of the disc. Placing side pressure on the cut-off disc (as in grinding) will cause the disc to crack and break, causing serious personal injury.

• Use the tool in such a way as to prevent the air from the ventilation slots from blowing directly onto your skin. Otherwise, you may get burned.

Indicator lamp for On lock warning lamp function

The grinder will not start when the switch is at the ON position (switch lever at ON), even when the battery pack is inserted. The warning lamp will flash at this time to indicate that the on lock start prevention function has operated.

Press the switch to the OFF position (switch lever at OFF) and then press it back to the ON position (switch lever at ON) to start the grinder.

ON OFF

CAUTION:

• To prevent excessive temperature increase of the tool surface, do not operate the tool continuously using two or more battery packs. The tool needs cool-off time before switching to another pack.

• Do not close up ventilation slots on the sides of the body during operation. Otherwise, the machine function is adversely affected to cause a failure.

• Do NOT strain the tool (motor). This may cause damage to the unit.

14 -

Overheat warning lamp

Off (normal operation)

The overheating protection feature halts operation to protect the battery pack in the event of overheating. The overheat warning lamp on the control panel flashes when this feature is active.

• If the overheating protection feature activates, allow the tool to cool thoroughly (at least 30 minutes). The battery is ready for use when the over-heat warning lamp goes out.

• Avoid using the tool in a way that causes the overheating protection feature to activate repeatedly.

Flashing: Overheat Indicates operation

has been halted due to battery overheating.

Battery low warning lamp

Off (normal operation)

Excessive (complete) discharging of lithium ion batteries shortens their service life dramatically. The tool includes a battery protection feature designed to prevent excessive discharging of the battery pack.

• The battery protection feature activates immediately before the battery loses its charge, causing the battery low warning lamp to flash.

• If you notice the battery low warning lamp flashing, charge the battery pack immediately.

Flashing (No charge) Battery protection feature active

- Accidental re-start preventive function

- Even if the battery pack is inserted on the tool with the power switch in the “ON” position, the tool does not start. At this time, the lamp flickers slowly and this shows that the accidental restart preventive function is at work.

- To start the tool, first slide the power switch toward the “OFF” position and then slide it toward the “ON” position.

[Battery Pack][Battery Pack] For Appropriate Use of For Appropriate Use of

Battery packBattery pack

Li-ion Battery pack (EY9L40)

• For optimum battery life, store the Liion battery pack following use without charging it.

• When charging the battery pack, confirm that the terminals on the battery charger are free of foreign substances such as dust and water etc. Clean the terminals before charging the battery pack if any foreign substances are found on the terminals.

The life of the battery pack termi-

nals may be affected by foreign substances such as dust and water etc. during operation.

• When battery pack is not in use, keep it away from other metal objects like: paper clips, coins, keys, nails, screws, or other small metal objects that can make a connection from one terminal to another.

Shorting the battery terminals togeth-

er may cause sparks, burns or a fire.

• When operating the battery pack, make sure the work place is well ventilated.

• When the battery pack is removed from the main body of the tool, replace the battery pack cover immediately in order to prevent dust or dirt from contaminating the battery terminals and causing a short circuit.

15 -

Battery Pack Life

The rechargeable batteries have a limited life. If the operation time becomes extremely short after recharging, replace the battery pack with a new one.

Battery Recycling

ATTENTION:

FOR Li-ion Battery Pack, EY9L40

A Li-ion battery that is recyclable powers the product you have purchased. Please call 1-800-8-BATTERY for information on how to recycle this battery .

[Battery Charger][Battery Charger] ChargingCharging

Cautions for the Li-ion Battery Pack

• If the temperature of the battery pack falls approximately below −10°C (14°F), charging will automatically stop to prevent degradation of the battery.

Common Cautions for the Liion/Ni-MH/Ni-Cd Battery Pack

• The ambient temperature range is between 0°C (32°F) and 40°C (104°F).

If the battery pack is used when the

battery temperature is below 0°C (32°F), the tool may fail to function properly.

• When charging a cool battery pack (below 0°C (32°F)) in a warm place, leave the battery pack at the place and wait for more than one hour to warm up the battery to the level of the ambient temperature.

• Cool down the charger when charging more than two battery packs consecutively.

• During charging, the charger may become slightly warm. This is normal. Do NOT charge the battery for a long period.

CAUTION:

To prevent the risk of fire or damage to the battery charger.

• Do not use power source from an engine generator.

• Do not cover vent holes on the charger and the battery pack.

• Unplug the charger when not in use.

Li-ion Battery Pack

NOTE:

Your battery pack is not fully charged at the time of purchase. Be sure to charge the battery before use.

Battery charger (EY0L80)

1. Plug the charger into the AC outlet.

NOTE:

Sparks may be produced when the plug is inserted into the AC power supply, but this is not a problem in terms of safety.

2. Insert the battery pack firmly into the charger.

1. Line up the alignment marks and place the battery onto the dock on the charger.

2. Slide forward in the direction of the arrow.

Alignment marks

3. During charging, the charging lamp will be lit. When charging is completed, an internal electronic switch will automatically be triggered to prevent overcharging.

• Charging will not start if the battery pack is warm (for example, immediately after heavy-duty operation).

The orange standby lamp will be flashing until the battery cools down.

Charging will then begin automatically .

4. The charge lamp (green) will flash slowly once the battery is approximately 80% charged.

16 -

5. When charging is completed, the charging lamp will start flashing quickly in green color.

6. If the temperature of the battery pack is 0°C or less, charging takes longer to fully charge the battery pack than the standard charging time. Even when the battery is fully charged, it will have approximately 50% of the power of a fully charged battery at normal operating temperature.

7. If the power lamp does not light immediately after the charger is plugged in, or if after the standard charging time the charging lamp does not flash quickly in green, consult an authorized service center.

8. If a fully charged battery pack is inserted into the charger again, the charging lamp lights up. After several minutes, the charging lamp may flash quickly to indicate the charging is completed.

Ni-MH/Ni-Cd Battery Pack

NOTE:

When you charge the battery pack for the first time, or after prolonged storage, charge it for about 24 hours to bring the battery up to full capacity .

Battery charger (EY0L80)

1. Plug the charger into the AC outlet.

NOTE:

Sparks may be produced when the plug is inserted into the AC power supply, but this is not a problem in terms of safety.

2. Insert the battery pack firmly into the charger.

3. During charging, the charging lamp will be lit. When charging is completed, an internal electronic switch will automatically be triggered to prevent overcharging.

• Charging will not start if the battery pack is warm (for example, immedi-ately after heavy-duty operation).

The orange standby lamp will be flashing until the battery cools down. Charging will then begin automatically.

4. When charging is completed, the charging lamp will start flashing quickly in green color.

5. If the charging lamp does not light immediately after the charger is plugged in, or if after the standard charging time the charging lamp does not flash quickly in green, consult an authorized service center.

6. If a fully charged battery pack is inserted into the charger again, the charging lamp lights up. After several minutes, the charging lamp may flash quickly to indicate the charging is completed.

17 -

LAMP INDICATIONSLAMP INDICATIONS

Green Lit Charger is plugged into the AC outlet. Ready to charge.

Green Flashing Quickly Charging is completed. (Full charge.)

Green Flashing Battery is approximately 80% charg ed. (Usable charge. Liion only)

Green Lit Now charging.

Orange Lit Battery pack is cool. The battery pack is being charged slowly to reduce the load on the battery. (Li-ion only)

Orange Flashing Battery pack is warm. Charging will begin when temperature of battery pack drops.

If the temperature of the battery pack is –10°C or less, the charging status lamp (orange) will also start ﬂ ashing. Charging will begin when the temperature of the battery pack goes up (Liion only)

Charging Status Lamp Left: green Right: orange will be displayed.

Both Orange and Green Flashing Quickly Charging is not possible. Clogged with dust or malfunction of the battery pack.

18 -

Replacing carbon brushes

Keep the carbon brushes clean and free to slip in the holders. When it is less than 5 mm (3/16”) shorter both carbon brushes should be replaced at the same time. Use only identical carbon brushes. Insert the top end of slotted bit screwdriver into the notch in the tool and remove the brush cap cover by lifting it

1. Brush cap cover

2. Brush cap

Carbon brush

Use a screwdriver to remove the caps. Take out the worn carbon brushes, insert the new ones and secure the brush caps.

Reinstall the brush cap cover on the tool. To maintain product SAFETY and RELIABILITY, repairs, any other maintenance or adjustment should be performed by Panasonic Authorized or Factory Service Centers, always using Panasonic replacement parts.

VI. MAINTENANCE

Use only a dry, soft cloth for wiping the unit. Do not use a damp cloth, thinner, benzine, or other volatile solvents for cleaning.

VII. ACCESSORIES

CAUTION:

• The use of any accessories not specified in this manual may result in fire, electric shock, or personal injury. Use recommended accessories only.

• Your tool is supplied with a guard for use with a grinding disc. A cutoff disc can also be used with a cut-off disc guard. If you decide to use your Panasonic grinder with approved accessories which you purchase from your Panasonic distributor or factory service center, be sure to obtain and use all necessary fasteners and guards as recommended in this manual. Your failure to do so could result in personal injury to you and others.

Grinding Disc

• EY9X202E

Wheel diameter 115 mm (4-1/2”) x 6 mm (1/4”) x 22 mm (7/8”)

Grinding Disc Guard

• EY9X212E

Cut-off Disc

• EY9X203E

Wheel diameter 115 mm (4-1/2”) x

2.5 mm (3/32”) x 22 mm (7/8”)

Cut-off Disc Guard (For cut-off disc)

• EY9X213E

Disc Flange

• EY9X221E

Clamp Nut

• EY9X231E

19 -

VIII. SPECIFICATIONS

MAIN UNIT

Mounting wheel diameter 115 mm (4-1/2”) Mounting wheel innerhole diameter 22 mm (7/8”) Spindle thread size M14 Motor voltage 14.4 V DC

-1

Rated speed 9500 min Weight (with battery pack) 2.2 kg (4.8 lbs) Overall length 361 mm (14-7/32”)

BATTERY PACK

Model EY9L40 Storage battery Li-ion Battery Battery voltage 14.4 V DC (3.6 V x 4 cells) Capacity 3 Ah

BATTERY CHARGER

Model EY0L80 Rating See the rating plate on the bottom of the charger. Weight 0.95 kg (2.1 lbs)

(rpm)

[Li-ion battery pack]

Charging time 3 Ah

14.4 V 21.6 V 28.8 V

EY9L40

Usable: 35 min.

Full: 50 min.

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EY9L60

Usable: 45 min.

Full: 60 min.

EY9L80

Usable: 55 min.

Full: 70 min.

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