Ferm CDM1096, Original Instructions Manual

Page: 7 / 12

EN
7 Ferm
Drilling
Rotate the torque adjustment ring (2) to the •
drilling position.
Ensure that the direction reversing switch
(5) is always set to ‘L’ during drilling.
Switching the device on and off
Fig. A
Depress the on/off switch (1). It regulates the •
speed of the appliance by transmitting power
to the switch.
Release the on/off switch (1) to halt the drill •
chuck immediately which will no longer run on.
Move the direction reversing switch (5) 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 b 5 °C to + 40 ºC.
Only use the battery charger in dry, ventilated •
rooms.
Charging
Fig. E
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.
As soon as the green trickle charging lamp lights
up, charging has been completed and the device
is ready for operation.
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