Manual Ferm CDM1090 (page 7 of 60) (English, German, Dutch, Danish, French, Italian, Portuguese, Swedish, Spanish, Norwegian, Finnish)

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• Move the direction reversing switch (6) to

the centre in order to lock the appliance in its

disabled state.

Only lay down the appliance when it has stopped

running completely. Do not place it on a dusty

surface as particles of dust could get into the

mechanism.

Charging the battery

• The included battery is delivered in partly

charged condition.

• Only use the battery charger in a temperature

range between + 5 °C to + 40 ºC.

• Only use the battery charger in dry, ventilated

rooms.

Charging

Fig. F

• Place the battery holder on a flat table and put

the battery in the battery holder. Pay attention

to + and - pole markings.

• Put the adapter plug of the net adapter in the

connector on the side of the battery holder.

• Put the net adapter in the socket.

• The red charging lamp on the battery holder

will illuminate indicating the battery is being

charged.

• The charging process of a fully discharged

battery will take approximately 5 hours the first

time and afterwards approximately 3 hours.

After the charging time the red light will

not switch off automatically! Remove the

battery within 5 hours from the charger.

If the battery is not removed from the

charger after the charging period it may

become overheated.

Discharging the battery

Not only charging batteries is important,

discharging is of equal importance or

even greater importance.

• When the battery is charged the cordless drill

has to be used until you start noticing that the

power of the drill is diminishing and that the

maximum rotational speed is not reached.

• The battery is almost discharged now. Only

now you can start charging the battery.

• Charging the battery while it is still charged

for say one-third of capacity, the so-called

‘memory effect’ can occur. Since during

charging only the discharged part of the

battery capacity of the battery is being

charged now, the battery can start crystallizing

in the one-third that is still charged. This part

of the battery capacity can never be used

afterwards.

• Do not discharge the battery to the minimum.

As soon as you notice that the power or the

maxi mum rotational speed is diminishing, you

have to charge the battery. When you proceed

using the drill and the battery becomes fully

discharged, the so-called ‘switch of poles

effect’ can occur. The polarity of the battery

poles will be switched: the ‘+’will become ‘-‘

and the ‘-‘ will become the ‘+’. Once this has

occurred the polarity will remain switched

during loading and this will damage the battery

irreparable.

When the cordless drill is not being used

over a longer period of time, the battery

has to be charged fully first. The battery

has to be stored in charged condition.

5. SERVICE & MAINTENANCE

Make sure that the machine is not live

when carrying out maintenance work on

the motor.

These machines have been designed to operate

over a long period of time with a minimum of

maintenance. Continuous satisfactory operation

depends upon proper machine care and regular

cleaning.

Cleaning

Keep the ventilation slots of the machine clean to

prevent overheating of the engine. Regularly clean

the machine housing with a soft cloth, preferably

after each use. Keep the ventilation slots free from

dust and dirt. If the dirt does not come off use a

soft cloth moistened with soapy water. Never use

solvents such as petrol, alcohol, ammonia water,

etc. These solvents may damage the plastic parts.

Lubrication

The machine requires no additional lubrication.

Faults

Should a fault occur, e.g. after wear of a part,

please contact the service address on the

warranty card. In the back of this manual you find

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Ferm CDM1090 Manual

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