Manual DeWalt DW540 (page 23 of 91) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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ENGLISH

en - 4

DW541/DW545 - Soft start feature

The soft start feature allows to build up speed slowly,

thus preventing the drill bit from walking off the

intended hole position when starting. The soft start

feature also reduces the immediate torque reaction

transmitted to the gearing and the operator if the

hammer is started with the drill bit in an existing hole.

Torque limiting clutch

All Rotary Hammers are equipped with a torque limiting

clutch that reduces the maximum torque reaction

transmitted to the operator in case of jamming of a drill

bit. This feature also prevents the gearing and electric

motor from stalling. The torque limiting clutch has been

factory-set and cannot be adjusted.

DW541/DW545 - Electronic speed and impact

control (fig. B)

The electronic speed and impact control offers the

following advantages:

- use of smaller drill bits without risk of bit breakage

- drilling into light and brittle materials without

shattering

- optimal tool control for precise chiselling

DW541/DW545 - Service and power-ON

indicator LEDs (fig. B)

The red service indicator LED (4) lights up when the

carbon brushes are nearly worn out to indicate that

the tool needs servicing. After approx. 8 hours of

use the motor will automatically be shut off. The

carbon brushes are not user-serviceable. Take the

tool to an authorized DEWALT repair agent.

The green power-ON indicator LED (3) lights up

when the tool is switched ON. If the indicator LED is

lit but the tool does not start, the electrical motor

may be defective. If the indicator LED does not light

up and the tool does not start, the ON/OFF-switch

or the mains cord may be defective.

Electrical safety

The electric motor has been designed for one

voltage only. Always check that the power supply

corresponds to the voltage on the rating plate.

Your DEWALT tool is double insulated in

accordance with EN 50144; therefore no

earth wire is required.

Mains plug replacement (U.K. & Ireland

only)

• Should your mains plug need replacing and you

are competent to do this, proceed as instructed

below. If you are in doubt, contact an authorized

DEWALT repair agent or a qualified electrician.

• Disconnect the plug from the supply.

• Cut off the plug and dispose of it safely; a plug

with bared copper conductors is dangerous if

engaged in a live socket outlet.

• Only fit 13 Amperes BS1363A approved plugs

fitted with the correctly rated fuse (1).

• The cable wire colours, or a letter, will be marked

at the connection points of most good quality

plugs. Attach the wires to their respective points

in the plug (see below). Brown is for Live (L) (2)

and Blue is for Neutral (N) (4).

• Before replacing the top cover of the mains plug

ensure that the cable restraint (3) is holding the

outer sheath of the cable firmly and that the two

leads are correctly fixed at the terminal screws.

Never use a light socket.

Never connect the live (L) or neutral (N)

wires to the earth pin marked E or .

For 115 V tools, use plugs to BS4343 standard.

Using an extension cable

If an extension cable is required, use an approved

triple-core extension cable suitable for the power

input of this tool (see technical data). The minimum

conductor size is 1.5 mm

When using a cable reel, always unwind the cable

completely.

Also refer to the table below.

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DeWalt DW540 Manual

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