Use and Care Manual

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7.6 Removing the battery (2-finger operation) 
1. Press in both release buttons.
2. Pull the battery downwards out of the tool.
7.7 Fitting the battery 
Use only Hilti B24/2.0 NiCd, B24/2.4 NiCd or B24/3.0
NiMH batteries.
1. Push the battery into the tool from below until it is
heard to engage.
7.8 Charging the battery
The battery cannot be charged through the belt adaptor.
Use only the Hilti C 7/24, C 7/36-ACS chargers.
Incorrect use may lead to electric shocks, overheating
of the battery or leakage of a caustic liquid from the bat-
tery.
Read the operating instructions for the charger before
beginning charging.
7.9 Changing the insert tool
7.9.1 Fitting the insert tool 
1. Remove the battery from the tool.
2. Check that the connection end of the insert tool is cle-
an and lightly greased. Clean and grease the connec-
tion end if necessary.
3. Check that the sealing lip of the dust shield is clean
and in good condition. Clean the dust shield if neces-
sary or replace the sealing lip if damaged.
4. Turn the chuck ring to the
() symbol.
5. Push the insert tool into the chuck as far as it will go.
6. Rotate the insert tool until it engages.
7. Turn the chuck ring back to the
() symbol.
8. Check that the drill bit is engaged by trying to pull it
out of the check.
7.9.2 Removing the insert tool
1. Remove the battery from the tool.
2. Turn the chuck ring to the
() symbol.
3. Pull the insert tool out of the chuck.
4. Turn the chuck ring back to the
() symbol.
8. Care and maintenance
8.1 Care of insert tools
Remove any dirt adhering to the surface of the insert
tools and protect them from corrosion by rubbing them
with an oily cloth from time to time.
8.2 Care of the tool
Before cleaning, remove the battery from the tool in order
to prevent inadvertent starting.
The outer casing of the tool is manufactured from impact-
resistant plastic. The grip comprises a synthetic rubber
section.
The ventilation slots must be unobstructed and kept clean
at all times. Use a dry brush to clean the ventilation slots
carefully. Do not permit foreign objects to enter the inte-
rior of the tool. Use a slightly damp cloth to clean the out-
side of the tool at regular intervals. Do not use a spray,
steam-cleaning system or running water for cleaning.
This may negatively affect the electrical safety of the tool.
Always keep the grip sections of the tool free from oil
and grease. Do not use cleaning agents or polishes, etc.
containing silicone.
8.3 Maintenance
Check all external parts of the tool for damage at regular
intervals and check that all controls operate faultlessly.
Do not operate the tool when parts are damaged or when
the controls do not operate faultlessly. If necessary, have
the tool repaired at a Hilti service center.
Electrical parts of the tool may be repaired only by trained
electrical specialists.
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 sur-
faces.
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 perfor-
mance is noticed.
At monthly intervals or, at the latest, when battery capa-
city drops significantly, the battery should be conditioned
as follows:
-CAUTION-
● The cutting edges of the insert tools
are sharp. The insert tools may also
become hot during use.
● There is a risk of cutting or burning
the fingers and hands.
● Wear protective gloves when chang-
ing insert tools.