Panasonic EY7541: III

original options and sockets to the

square drive on the body. The cushion

rubber in the square drive to push up

the ball may get hard under freezing

point. This requires extra force in

detaching and attaching sockets.

Attaching or Removing Bat-

tery Pack

1. To connect the battery pack:

Line up the alignment marks and attach

the battery pack.

•

Slide the battery pack until it locks into

position.

Alignment

marks

2. To remove the battery pack:

Push on the button from the front to re-

lease the battery pack.

Button

III

. OPERATION

[Main Body]

Switch and Forward/Reverse

Lever Operation

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CAUTION:

To prevent damage, do not operate

Forward/Reverse lever until the bit

comes to a complete stop.

Forward Rotation Switch

Operation

1. Push the lever for forward rotation.

2. Depress the trigger switch slightly to start

the tool slowly.

3. The speed increases with the amount of

depression of the trigger for efficient tight-

ening of screws. The brake operates and

the bit stops immediately when the trigger

is released.

4. After use, set the lever to its center posi

-

tion (switch lock).

Reverse Rotation Switch

Operation

1.

Push the lever for reverse rotation. Check

the

direction of rotation before use.

2.

Depress the trigger switch slightly to start the

tool slowly.

3. After use, set the lever to its center posi-

tion (switch lock).

CAUTION:

• To eliminate excessive temperature

increase of the tool surface, do not

operate the tool continuously using two

or more battery packs. Tool needs cool

off time before switching to another

pack.

How to Use the Belt Hook

WARNING!

• Be sure to attach the belt hook securely

to the main unit with the screw firmly fas-

tened. When the belt hook is not firmly

attached to the main unit, the hook may

disconnect and the main unit may fall.

This may result in an accident or injury.

• Periodically check screw for tightness. If

found to be loose, tighten firmly.

•

Be sure to attach the belt hook firmly and

securely onto a waist belt or other belt. Pay

attention that the unit does not slip off the

belt.

This may result in an accident or injury.

• When the main unit is held by the belt

hook, avoid jumping or running with it.

Doing so may cause the hook to slip and

the main unit may fall.

This may result in an accident or injury.

• When the belt hook is not used, be sure

Control Panel

to return it to the storing position. The belt

(4) (3)

hook may catch on something.

This may result in an accident or injury.

•

When the unit is hooked onto the waist belt

by the belt hook, do not attach driver bits

(1)

to the unit. A sharp edge object, such as a

drill bit, may cause injury or an accident.

To Set the Belt Hook Angle

(2)

Position

1. Slide the belt hook lock lever 1 and hold

(1) Impact Power Mode Select

it to unlock the belt hook.

Selecting the impact power among 3

2

2. Pull the belt hook from

modes (Soft, Medium, Hard).

1

storing position 2 and

Press the impact power mode button to set

set it.

it. The mode changes to hard, medium, or

3.

Release the belt hook

3

soft each time the button is pressed.

lock lever to

lock the

The driver is preset to “hard” impact mode

angle of belt hook.

setting when shipped from the manufac-

4.

Make sure the belt hook is firmly locked.

turer.

Also make sure the belt hook is firmly

Recommended work guideline table

locked into position

3

.

Impact

• The belt hook cannot

Power mode

Recommended Application

be locked in this posi-

Display

tion. Firmly lock it into

Jobs requiring a high level

position before use.

of torque where there is

H

no possibility of the bolts

To return the belt hook to the storing position,

or screw breaking, its top

Follow step 1. and 2. above, then lower the

shearing off, or the bit coming

belt hook.

loose. (This setting provides

0 – 2300 r.p.m.

To secure the lock, follow 3 and 4 above.

maximum torque.) Suitable

and

applications include:

0 – 3000 i.p.m.

Tightening M8 and larger

To Change the Belt Hook

bolts

Tightening long screws

Location Side

during interior finishing work

The belt hook can be attached to either

Jobs requiring limited torque

side of the unit.

where there is a possibility of

M

the screw breaking or its top

shearing off. (This setting limits

torque.) Suitable applications

include:

0 – 1400 r.p.m.

Tightening bolts with

and

smaller diameters (M6)

0 – 2800 i.p.m.

Tightening metalwork

screws when installing

fixtures

1. Set the belt hook at storing position.

Jobs requiring limited torque

2. Loosen the screw turning it counter-

where there is a possibility

S

clockwise, using a flat metal or a flat

of the screw breaking, its

top shearing off, or the bit

blade screw driver.

coming loose and damaging

3. Take out the belt hook and insert into

anishedexteriorsurface.

the other side of the slot on the main

(This setting limits torque.)

0 – 1000 r.p.m.

unit.

Suitable applications include:

and

Tightening bolts smaller

4. Fasten the screw firmly, turning it clock

-

0 – 2000 i.p.m.

than M6 that may shear

wise.

easily

Tightening screws into

The belt hook can be taken out from the

molded plastic

main unit only when it is at storing posi-

Installing gypsum wallboard

tion.

* i.p.m. = Impact per minute.

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(2) LED light

(4) Battery low warning lamp

Before the use of LED

light, always pull the

power switch once.

Press the LED light

on button.

The light illuminates

Off (normal

Flashing (No charge)

operation)

with very low cur-

Battery protection

rent, and it does not

feature active

adversely affect the performance of the tool

during use or its battery capacity.

Excessive (complete) discharging of Li-

CAUTION:

ion batteries shortens their service life

• The built-in LED light is designed to illu-

dramatically. The driver includes a battery

minate the small work area temporarily.

protection feature designed to prevent

•

Do not use it as a substitute for a regular

excessive discharging of the battery pack.

flashlight, since it does not have enough

• The battery protection feature activates

brightness.

immediately before the battery loses its

•

LED light turns off when the tool has not

charge, causing the battery low warning

been used for 5 minutes.

lamp to flash.

Caution : DO NOT STARE INTO BEAM.

• If you notice the battery low warning

lamp flashing, charge the battery pack

Use of controls or adjustments or performance

immediately.

ofproceduresotherthanthosespeciedherein

may result in hazardous radiation exposure.

[Battery Pack]

(3) Overheat warning lamp

For Appropriate Use of Bat-

tery Pack

Li-ion Battery Pack (EY9L40/

Off (normal

Flashing: Overheat

EY9L41)

operation)

Indicates operation has

• For optimum battery life, store the Li-ion

been halted due to motor

battery pack following use without charging

or battery overheating.

it.

The overheating protection feature halts

• When charging the battery pack, confirm

driver operation to protect the motor and

that the terminals on the battery charger

battery pack in the event of overheating.

are free of foreign substances such as

The overheat warning lamp on the control

dust and water etc. Clean the terminals

panel flashes when this feature is active.

before charging the battery pack if any

•

If the overheating protection feature acti-

foreign substances are found on the ter-

vates, allow the driver to cool thoroughly

minals.

(at least 30 minutes). The driver is ready

The life of the battery pack terminals may

for use when the overheat warning lamp

be affected by foreign substances such as

goes out.

dust and water etc. during operation.

•

Avoid using the driver in a way that

• When battery pack is not in use, keep it

causes the overheating protection fea-

away from other metal objects like: paper

ture to activate repeatedly.

clips, coins, keys, nails, screws, or other

small metal objects that can make a con-

nection from one terminal to another.

Shorting the battery terminals together

may cause sparks, burns or a fire.

•

When operating the battery pack, make

sure the work place is well ventilated.

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• When the battery pack is removed from the

CAUTION:

main body of the tool, replace the battery

To prevent the risk of fire or damage to

pack cover immediately in order to prevent

the battery charger.

dust or dirt from contaminating the battery

• Do not use power source from an

terminals and causing a short circuit.

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:

Battery Pack Life

Your battery pack is not fully charged at

The rechargeable batteries have a lim-

the time of purchase. Be sure to charge

ited life. If the operation time becomes

the battery before use.

extremely short after recharging, replace

the battery pack with a new one.

Battery charger (EY0L80)

1. Plug the charger into the AC outlet.

Battery Recycling

NOTE:

ATTENTION:

Sparks may be produced when the plug

For environmental protection and recy-

is inserted into the AC power supply, but

cling of materials, be sure that it is dis-

this is not a problem in terms of safety.

posed of at an officially assigned loca-

2.

Insert the battery pack firmly into the charger.

tion, if there is one in your country.

1 Line up the alignment marks and place the

battery onto the dock on the charger.

[Battery Charger]

2 Slide forward in the direction of the arrow.

Alignment marks

Charging

Cautions for the Li-ion Battery

Pack

• If the temperature of the battery pack falls

approximately below −10°C (14°F),charg

-

3.

During charging, the charging lamp will be

ing will automatically stop to prevent degra-

lit.

dation of the battery.

When charging is completed, an internal

electronic switch will automatically be trig-

Common Cautions for the Li-

gered to prevent overcharging.

ion/Ni-MH/Ni-Cd Battery Pack

• Charging will not start if the battery

• The ambient temperature range is between

pack is warm (for example, immediately

0°C (32°F) and 40°C (104°F).

after heavy-duty operation).

If the battery pack is used when the bat

-

The orange standby lamp will be flash

-

tery temperature is below 0°C (32°F),

ing until the battery cools down.

the tool may fail to function properly.

Charging will then begin automatically.

• When charging a cool battery pack (below

4.

The charge lamp (green) will flash slowly

0°C (32°F)) in a warm place, leave the

once the battery is approximately 80%

battery pack at the place and wait for

charged.

more than one hour to warm up the bat-

5.

When charging is completed, the charging

tery to the level of the ambient tempera-

lamp will start flashing quickly in green color.

ture.

6. If the temperature of the battery pack is

•

Cool down the charger when charging more

0°C or less, charging takes longer to fully

than two battery packs consecutively.

charge the battery pack than the standard

• Do not insert your fingers into contact

charging time.

hole, when holding charger or any other

occasions.

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