6. Operation
NOTE
G
The battery will not suffer damage if left in the charg-
er for a long period (when the charger is connected to
the mains supply and in operation).
NiCd batteries
G
The charging current is greatly reduced when the bat-
tery is left in the charger for longer than 24 hours. This
avoids damage to the battery and ensures that it remains
ready for use.
NiMH batteries
G
The charging current is greatly reduced when the bat-
tery is left in the charger for longer than 4 hours. This
avoids damage to the battery and ensures that it remains
ready for use.
IMPORTANT
G
The charger has been designed to charge the batter-
ies listed. It must not be used to charge other batteries.
Temperature monitoring may not function with other
batteries, thus causing overheating and leakage of chem-
ical liquids.
G
Corrosive liquids may leak from defective batteries.
Avoid contact with these liquids.
6.1 Charging the battery
1. Check that the battery is fitted into the appliance cor-
rectly (shape of battery and battery compartment
must correspond).
2. Push the battery into the compartment in the appli-
ance as far as it will go.
6.2 Conditioning the battery
To achieve an effect similar to that of the conditioning
function provided by the SFC7/18 and TCU 7/36 rapid
chargers, we recommend that the battery is left in the
charger for at least 24 hours once each month.
Indicators
Green lamp
Lit continuously The charger is connected to the mains
supply and ready for operation.
Blinking
The battery is not ready for charging.
Re-insert the battery in the charger. If
charging does not begin, please refer
to the "Care and maintenance” section
of the operating instructions for
the SF 100-A, SF 120-A, SF 121-A,
SF150-A, SF180-A or SF4000-A.
Red lamp
Lit continuously The battery is being charged.
Blinking
The battery is charged.
Yellow lamp
Blinking
The battery is too cold (approx. 0°C/0°F)
or too hot (approx. 60°C/140°F). Charg-
4
ing does not begin. The charging oper-
ation begins automatically as soon as
the battery reaches the permissible
temperature.
7. Care and maintenance
Unplug the supply cord form the mains socket.
7.1 Care of the appliance
The outer housing of the appliance is manufactured from
impact-resistant plastic. Do not permit metal objects to
enter the interior of the appliance. Clean the outside of
the casing at regular intervals with a slightly damp cloth
or a dry brush. Do not use a spray cleaning system, high-
pressure steam cleaning system or running water for
cleaning. These may negatively affect the electrical safe-
ty of the appliance. Keep the appliance free from oil and
grease. Do not use cleaning agents or polishes, etc. con-
taining silicone.
7.2 Maintenance
G
Check all external parts of the appliance for damage
at regular intervals and ensure that all operating con-
trols function faultlessly. Do not operate the appliance
when parts are damaged or when the operating controls
do not function faultlessly. If necessary, have the appli-
ance repaired at a Hilti service centre.
G
The electrical parts of the appliance may be repaired
only by trained electrical specialists.
7.3 Care of the battery
G
Keep the electrical contacts free from dust, oil and
grease. If necessary, use a clean cloth to clean the con-
tact surfaces.
G
In the event of battery capacity dropping below an
acceptable level after a long period of use, we recom-
mend that the battery is returned to Hilti for a diagnos-
tic check.
Printed: 07.07.2013 | Doc-Nr: PUB / 5070686 / 000 / 00
