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9. Tools and accessories
Side handle and depth gauge Optional
Grease Optional
Cleaning cloth Optional
Charger C 7/24
Charger C 7/36-ACS
Battery B24/2.0 NiCd (depending on country)
Battery B24/2.4 NiCd (depending on country)
Battery B24/3.0 NiMH
Toolbox/cardboard box
Belt adaptor BAP 24
Fault Possible cause Remedy
Tool doesn‘t run Battery is discharged or not correctly Refit the battery. It must be heard to engage
fitted with an audible “click”. Charge the battery if
necessary.
Electrical fault Remove the battery and contact your
nearest Hilti service center.
No hammering action Function selector switch set to Set the function selector switch
the wrong mode to hammer drilling mode.
On / off switch cannot be Forward / reverse switch is set to Move the forward / reverse switch to the
pressed middle position left/right.
Speed suddenly drops The battery is almost exhausted. Stop working with the exhausted battery
and charge it fully.
Battery becomes dis- Battery condition is not optimal. Charge the battery using conditioning mode
charged faster than usual (see battery charger operating instructions).
Battery does not engage Dirt on battery locking mechanism Clean battery locking mechanism and refit
with an audible “click” the battery. Contact your nearest Hilti ser-
vice center if the problem persists.
Tool or battery overheats Electrical fault. Switch off the tool immediately. Remove
the battery and contact your nearest Hilti
service center.
Overload due to exceeding Select the right tool for the application.
application limit
10. Troubleshooting
– With the C 7/24 charger: Charge for 24 hours in nor-
mal charging mode or for 12 hours in conditioning
mode.
– With the C 7/36-ACS charger: The charger detects
automatically whether initial charging or normal char-
ging is necessary.
If, after conditioning, battery capacity is still unsatisfac-
tory, we recommend returning the battery to Hilti for diag-
nosis.
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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