Manual Ferm fbh 850 kn (page 5 of 52) (English, German, Dutch, French, Italian)

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Ferm

Wear a dust mask. Working with wood,

metals and other materials may produce

dust that is harmful to health. Do not

work with material containing asbestos

Specific safety instructions

For use of this machine/tool:

Inspect the surface to be drilled for hidden •

electrical wiring, gas pipes or other obstacles

(for example, using a metal detector).

Check the following points:•

Does the appliance’s voltage correspond •

with the mains power supply voltage?

Are power cords, insulation and plug in •

good order: sound, not loose or damaged?

Is there a good, firm connection at the •

mains socket?

Does the drill show any sign of abnormal •

running, overheating or excessive

sparking?

Whenever any of the problems mentioned •

above appear, immediately cease using

the machine and have it repaired by an

expert.

Wear ear protectors. Exposure to noise can •

cause hearing loss.

Use auxiliary handles supplied with the tool. •

Loss of control can cause personal injury.

Hold power tool by insulated gripping surfaces,

when performing an operation where the cutting

accessory may contact hidden wiring or its own

cord. Cutting accessory contacting a “live” wire

may make exposed metal parts of the power tool

“live” and give the operator an electric shock.

Electrical safety

When using electric machines always observe the

safety regulations applicable in your country to

reduce the risk of fire, electric shock and personal

injury. Read the following safety instructions and

also the enclosed safety instructions.

Always check that the mains voltage is

the same as on the type plate of the

machine.

Class II machine – Double insulation –

You don’t need any earthed plug.

Replacement of power cords or plugs

Immediately dispose of old cords and plugs once

they have been replaced.

It is dangerous to plug a loose power cord into a

mains power socket.

Use of extension leads

Only ever use approved extension leads that are

suitable for the power rating of the machine. The

mini mum core thickness is 1,5 mm

. Whenever

using a reel extension lead, always fully unroll the

lead.

Immediately switch off the machine when:

Excessive sparking of the carbon brushes and •

verticiliosis in the collector.

Interruption of the mains plug, mains lead or •

mains lead damage.

Defect switch•

Smoke or stench of scorched isolation•

3. OPERATING

Hammer drills require very little operator

pressure. Excessive pressure on the

tool can lead to unnecessary

overheating of the motor, and burning of

the driven tool.

Auxiliary handgrip

The auxiliary handgrip can be rotated 360º around

the drill head, enabling safe and comfortable

operation, for both left and right-handed users.

Loosen the handgrip by turning it •

anticlockwise.

Rotate the handgrip to the desire position.•

Retighten the handgrip in the new position.•

Exchanging and removing drill bits

Fig. A+B

Before exchanging bits, first remove the

power plug from the wall socket.

Inspect bits regularly during use. Blunt

bits should be re-sharpened or

replaced.

Lightly oil the bit shaft before inserting it into •

the chuck.

Slide the locking sleeve (11) to the rear, and •

insert the bit into the chuck opening. Ensure

that the keyway in the bit is seated properly in

the chuck, by carefully turning the bit until it

clicks into place. Release the locking sleeve.

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Ferm fbh 850 kn Manual

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