Manual DeWalt D25404K T-3 (page 28 of 132) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Spanish, Norwegian)

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ENGLISH

INTENDED USE

Your rotary hammerdrill has been designed for

professional rotary drilling and hammerdrilling as

well as light chipping, chiselling and demolition

applications and for carbide-tipped core drilling.

DO NOT use under wet conditions or in presence of

flammable liquids or gases.

These hammerdrills are professional power tools.

DO NOT let children come into contact with the

tool. Supervision is required when inexperienced

operators use this tool.

Torque Limiting Clutch

All rotary hammerdrills 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.

Variable Speed

The variable speed feature allows speed to build

up slowly, thus preventing the drill bit from walking

off the intended hole position when starting. The

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.

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 charger is double insulated

in accordance with EN 60745; therefore

no earth wire is required.

WARNING: 115 V units have to

be operated via a fail-safe isolating

transformer with an earth screen

between the primary and secondary

winding.

If the supply cord is damaged, it must be replaced

by a specially prepared cord available through the

DEWALT service organization.

Mains Plug Replacement

(U.K. & Ireland Only)

If a new mains plug needs to be fitted:

• Safely dispose of the old plug.

• Connect the brown lead to the live terminal in

the plug.

• Connect the blue lead to the neutral terminal.

WARNING: No connection is to be

made to the earth terminal.

Follow the fitting instructions supplied with good

quality plugs. Recommended fuse: 13 A.

Using an Extension Cable

An extension cord should not be used unless

absolutely necessary. Use an approved extension

cable suitable for the power input of your charger

(see technical data). The minimum conductor size is

1 mm

; the maximum length is 30 m.

When using a cable reel, always unwind the cable

completely.

ASSEMBLY AND ADJUSTMENTS

WARNING: To reduce the risk of

injury, turn unit off and disconnect

machine from power source before

installing and removing accessories,

before adjusting or changing set-ups

or when making repairs. Be sure the

trigger switch is in the OFF position. An

accidental start-up can cause injury.

Selecting the Operating Mode (ﬁg. 2)

The tool can be used in the following operating

modes:

Rotary drilling: for screwdriving and for

drilling into steel, wood and plastics

Hammerdrilling: for concrete and

masonry drilling operations.

Hammering only: for light chipping,

chiselling and demolition applications. In

this mode the tool can also be used as a

lever to free a jammed drill bit.

Bit rotation: non-working position used

only to rotate a ﬂat chisel into the desired

position.

1. To select the operating mode, press the safety

lock (c) and rotate the mode selector switch

(b) until it points to the symbol of the required

mode.

2. Release the safety lock and check that the

mode selector switch is locked in place.

WARNING: Do not select the operating

mode when the tool is running.

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DeWalt D25404K T-3 Manual

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