Bedienungsanleitung Ferm HDM1023 (Seite 5 von 108) (Deutsch, Englisch, Holländisch, Dänisch, Französisch, Italienisch, Portugiesisch, Spanisch, Polnisch, Schwedisch, Norwegisch, Finnisch)

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each machine function is given in the diagram

(Fig.C) on page 2.

1 = Demolition hammer/chisel

2 = Rotary hammer drill

3 = Drilling



• To start the drill, squeeze the trigger.

• To stop the drill, release the trigger.

Installing dust catcher

Fig. C

The dust catcher prevents large amounts of

drilling dust entering the machine when drilling

into ceilings:

• Remove the drill bit.

• Slide the dust catcher over the shaft of the drill

bit.

• Place the drill bit with catcher in the drill

chuck.

• Always replace a damaged dust catcher

immediately.



Take care that the machine is not

connected to power whenever

maintenance work on the mechanical

parts is taking place.

The machines are designed to function

problem-free for a long period with a minimum

of maintenance. Through regular cleaning and

correct treatment, you help assure a long working

life for your machine.

Defects

The machine should be regularly inspected for

the following possible defects, and repaired if

necessary.

• Damage to power cord

• Broken on/off trigger assembly.

• Short circuiting.

• Damaged moving parts.

Trouble shooting

 



• Failure in power supply.

• Check the power supply.

• Poor contact in the on/off trigger.

• Repair or replace the trigger assembly.

• Mains voltage too low.

• Extension lead too long, or too light.

• Damaged motor.

• Have your machine repaired by an expert.

• Carbon brushes worn.

• Replace the carbon brushes

 



• Motor is overloaded due to excessive

pressure or drilling depth.

• Reduce the pressure or drilling depth,

reduce power.

• Damaged motor.

• Have your machine repaired by an expert.

• Supply voltage too low.

• Adjust the supply voltage.

• Carbon brushes worn.

• Replace the carbon brushes

 

• Overloading of machine, or blunt drill bit

• Reduce the loading, or hone the drill bit.

Replacing carbon brushes

• Regularly check the carbon brushes for wear

and defects.

• Replace both carbon brushes at the same

time.

• Always replace worn-out carbon brushes.

• Always keep the carbon brushes clean, and

make sure that neither brush is obstructed.

• Open the machine to inspect/replace the

carbon brushes.

• Remove and replace the carbon brushes if

necessary.

Cleaning

Clean the machine casings regularly with a soft

cloth, preferably after each use. Make sure that

the ventilation openings are free of dust and

dirt. Remove very persistent dirt using a soft

cloth moistened with soapsuds. Do not use any

solvents such as gasoline, alcohol, ammonia,

etc. Chemicals such as these will damage the

synthetic components.

Lubrication

Fig. A

• Regularly grease the hammer drill shaft.

• Regularly check the grease-level inside the

machine:

• Remove the grease cap (12) on top of the

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