2. Fit the bit holder into the chuck.
3. Fit the bit into the bit holder.
7.6.2 Screwdriving
1. Set the forward / reverse switch to the desired
direction of rotation.
2. Turn the torque and operating mode setting ring
to the desired torque value.
7.6.3 Removing the bit / bit holder
1. Set the forward / reverseswitchtothemiddle
position or remove the battery from the tool.
2. Remove the bit from the bit holder.
3. Remove the bit holder from the chuck.
8. Care and maintenance
CAUTION
Before beginning cleaning, remove the battery from
the tool in order to avoid accidental starting.
8.1 Care o f insert tools
Clean off dirt and dust deposits adhering to the insert
tools and protect them from corrosion by wiping the
insert tools from time to time with an oil-soaked rag.
8.2 Care of the tool
The outer casing of the tool is made from impact-
resistant plastic. Sections of the grip are made from
a synthetic rubber material.
Never operate the tool when the ventilation slots are
blocked. Clean the ventilation slots carefully using a
dry brush. Do not permit foreign objects to enter the
interior of the tool. Clean the outside of the tool at
regular intervals with a slightly damp cloth. Do not
use a spray, steam pressure cleaning equipment or
running water for cleaning. This may negatively affect
the electrical safety of the tool. Always keep the grip
surfaces of the tool free from oil and grease. Do not
use cleaning agents which contain silicone.
8.3 Maintenance
WARNING
Repairs to the electrical section of the tool may be
carried out only by trained electrical specialists.
Check all external parts of the tool for damage at
regular intervals and check that all controls operate
faultlessly. Do not operate the tool if parts are dam-
aged or when the controls do not function faultlessly.
If necessary, your tool should be repaired at a Hilti
repair center.
8.4 Care of the battery
Keep the electrical contacts free from dust, oil and
grease. If necessary, use a clean cloth to clean the
contact surfaces. Do not continue to operate the tool
until the battery is completely discharged as this may
damage the battery cells. Recharge the battery as
soon as a drop in performance is noticed. At monthly
intervals or, at the latest, when battery capacity drops
significantly, the battery should be given a refreshing
charge, as follows: Charge with the C 7/24, SFC 7/18,
SFC 7/18Hor TCU 7/36 chargerfor 24 hoursinnormal
mode or for 12 hours in refresh mode. The C 7/36-
ACS charger determines automaticallywhenaninitial
charge or refreshing charge is necessary. If battery
capacity is still unsatisfactory after the refreshing
charge, we recommend that the battery is returned to
Hilti for diagnosis.
8.5 Checking the tool after care and
maintenance
After carrying out care and maintenance work on the
tool, check that all protective and safety devices are
fitted and that they function faultlessly.
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