Panasonic EY7840: IV. OPERATION

Attaching or Removing Bat-

Hammering/Drilling Switching

tery Pack

Lever

1. To connect the battery pack:

NOTE: Operate the mode change after

Line up the alignment marks and

the motor rotation is completely

attach the battery pack.

stopped.

• Slide the battery pack until it locks

Position of

into position.

Action mode Operation

switching lever

Concrete

Rotation with

Drilling,

hammering

Block Drillin

2. To remove the battery pack:

Push on the button from the front to

release the battery pack.

IV. OPERATION

Forward/Reverse Lever

• Be sure to set the lever in the center

to lock it after use.

• Operate the Forward/Reverse lever

after the motor rotation is completely

stopped.

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Alignment marks

Screw

Rotation only

Fastening,

Drilling

Clutch Torque Setting

Adjust the torque to one of the 5 clutch

settings or “

” position.

CAUTION:

Test the setting before actual operation.

Set the scale at this mark ( ).

Button

Variable Speed Control Trigger

Forward Reverse

To set the center of a hole, pull the

trigger slightly to start the drill rotation

slowly.

The more the speed control trigger is

Lock

pulled, the higher the speed becomes.

Control Panel

(

3

)

(

1

)

(

2

)

(3) Battery low warning lamp

(1) LED light

Before the use of LED

light, always pull the

power switch once.

Press

the LED light

Flashing

Off

on button.

(No charge)

(normal

The light illuminates with

Battery protection

operation)

feature active

very low current, and it

does not adversely affect

The battery protection feature

the performance of the

activates immediately before the

tool during use or its

battery loses its charge, causing the

battery capacity.

battery low warning lamp to flash.

CAUTION:

• If you notice the battery low warning

• The built-in LED light is designed to

illuminate the small work area

lamp flashing, charge the battery

temporarily.

pack immediately.

•

Do not use it as a substitute for a

regular flashlight, since it does not

Installing the Shoulder Strap

have enough brightness.

•

LED light turns off when the tool has

CAUTION:

not been used for 5 minutes.

• Install the shoulder strap firmly to

the main unit of the tool and

Caution : DO NOT STARE INTO BEAM.

check the length of the strap

Use of controls or adjustments or performance

before use.

of procedures other than those specified herein

•

Check the condition of the strap

may result in hazardous radiation exposure.

and do not use if it is cut or torn

etc.

(2) Overheat warning lamp

There is a risk of injury or damage

if used while improperly installed.

• Please wear the shoulder strap

securely on the shoulder.

There is a risk of injury or damage

Off

Flashing: Overheat

if it is accidentally dropped.

(normal

Indicates operation has

operation)

been halted due to battery

1. Pass the strap through the strap

overheatin

holders. (

)

The overheating protection feature

2. Pass the strap through the buckles

halts tool operation to protect the

and adjust the length. (

)

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

tool is ready for use when the

overheat warning lamp goes out.

• Avoid using the tool in a way that

causes the overheating protection

feature to activate repeatedly.

• The shoulder strap can be adjusted

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.

Shoulder pad

according to the individual.

limited life. If the operation time be-

• Adjust the shoulder pad to the

comes extremely short after recharg-

shoulder.

ing, replace the battery pack with a

• Pull the shoulder strap to make

new one.

sure it is firmly attached to the main

unit of the tool.

Battery Recycling

ATTENTION:

[Battery Pack]

For environmental protection and

recycling of materials, be sure that

For Appropriate Use of

it is disposed of at an officially

Battery pack

assigned location, if there is one in

Li-ion Battery pack (EY9L40/EY9L41)

your country.

• For optimum battery life, store the Li-

ion battery pack following use without

[Battery Charger]

charging it.

Charging

• When charging the battery pack,

confirm that the terminals on the

Cautions for the Li-ion Battery

battery charger are free of foreign

Pack

substances such as dust and water

• If the temperature of the battery pack

etc. Clean the terminals before

falls

approximately below −10°C (14°F),

charging the battery pack if any

charging will automatically stop to

foreign substances are found on the

prevent degradation of the battery.

terminals.

The life of the battery pack terminals

Common Cautions for the Li-

may be affected by foreign

ion/Ni-MH/Ni-Cd Battery Pack

substances such as dust and water

• The ambient temperature range is

etc. during operation.

between 0°C (32°F) and 40°C (104°F).

• When battery pack is not in use,

If the battery pack is used when the

keep it away from other metal objects

battery temperature is below 0°C

like: paper clips, coins, keys, nails,

(32°F), the tool may fail to function

screws, or other small metal objects

properly.

that can make a connection from one

terminal to another.

• Use the charger at temperatures

between 0°C and 40°C, and charge

Shorting the battery terminals together

the battery at a temperature similar to

may cause sparks, burns or a fire.

that of the battery itself. (There should

• When operating the battery pack,

be no more than a 15°C difference

make sure the work place is well

between the temperatures of the

ventilated.

battery and the charging location.)

• When the battery pack is removed

• When charging a cool battery pack

from the main body of the tool, replace

(below 0°C (32°F)) in a warm place,

the battery pack cover immediately in

leave the battery pack at the place

order to prevent dust or dirt from

and wait for more than one hour to

contaminating the battery terminals

warm up the battery to the level of

and causing a short circuit.

the ambient temperature.

• Cool down the charger when charging

more than two battery packs

consecutively.

• Do not insert your fingers into contact

Battery Pack Life

hole, when holding charger or any

other occasions.

The rechargeable batteries have a

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