Manual Panasonic EY7950 (page 10 of 112) (English, German, Dutch, Danish, French, Italian, Swedish, Spanish, Norwegian, Finnish)

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(1) LED light

CAUTION:

• The built-in LED light is designed to

illuminate the small work area tempo-

rarily.

• Do not use it as a substitute for a reg-

ular flashlight, since it does not have

enough brightness.

• LED light turns off when the tool has

not been used for 5 minutes.

Caution: DO NOT STARE INTO BEAM.

Use of controls or adjustments or

performance of procedures other than

those specified herein may result in

hazardous radiation exposure.

(2) Overheat warning lamp

To protect the motor or battery, be

sure to note the following when car-

rying out this operation.

• If the motor or battery becomes hot,

the protection function will be acti-

vated and the motor or battery will

stop operating. The overheat warn-

ing lamp on the control panel illumi-

nates or flashes when this feature is

active.

• If the overheating protection feature

activates, allow the tool to cool tho-

roughly (at least 30 minutes). The

tool 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.

• If the tool is operated continuously

under high-load conditions or if it is

used in hot-temperature conditions

(such as during summer), the over-

heating protection feature may acti-

vate frequently.

• If the tool is used in cold-temperature

conditions (such as during winter) or

if it is frequently stopped during use,

the overheating protection feature

may not activate.

• The performance of the EY9L42 de-

teriorates significantly at and below

10°C due to work conditions and

other factors.

(3) Battery low warning lamp

Excessive (complete) discharging of

lithium ion batteries shortens their

service life dramatically. The driver

includes a battery protection feature

designed to prevent excessive dis-

charging of the battery pack.

• The battery protection feature acti-

vates 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.

Off

(normal

operation)

Flashing

(No charge)

Battery protection

feature active

Off

(normal

operation)

Flashing:

Overheat

(battery)

Indicates operation has

been halted due to motor

or battery overheating.

Before the use of LED light,

always pull the power switch

once.

Press the LED light

button.

The light illuminates with

very low current, and it does

not adversely affect the

performance of the tool

during use or its battery

capacity.

[Battery Pack]

For Appropriate Use of

Battery pack

Li-ion Battery pack

• For optimum battery life, store the

Li-ion 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 for-

eign substances are found on the

terminals.

The life of the battery pack terminals

may be affected by foreign sub-

stances such as dust and water etc.

during operation.

• When battery pack is not in use,

keep it away from other metal ob-

jects 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 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, re-

place the battery pack cover imme-

diately in order to prevent dust or dirt

from contaminating the battery ter-

minals and causing a short circuit.

Battery Pack Life

The rechargeable batteries have a

limited life. If the operation time be-

comes extremely short after re-

charging, replace the battery pack

with a new one.

Battery Recycling

ATTENTION:

For environmental protection and

recycling of materials, be sure that

it is disposed of at an officially as-

signed location, if there is one in

your country.

[Battery Charger]

Charging

Cautions

• If the temperature of the battery pack

falls approximately below í10°C

(14°F), charging will automatically

stop to prevent degradation of the

battery.

• 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 charg-

ing more than two battery packs

consecutively.

• Do not insert your fingers into con-

tact hole, when holding charger or

any other occasions.

To prevent the risk of fire or damage to

the battery charger.

• Do not use power source from an en-

gine generator.

• Do not cover vent holes on the charger

and the battery pack.

• Unplug the charger when not in use.

EY7442_7450_7950(EU).indb 10 2011-3-1 11:33:58

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Panasonic EY7950 Manual

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