Troubleshooting - Hilti NUN 10K-22 Manual

To help ensure safe and reliable operation, use only genuine Hilti spare parts and consumables. Spare
parts, consumables and accessories approved by Hilti for use with your product can be found at your
Hilti Store or online at: www.hilti.group
7.1 Changing battery of remote control unit
1. Twist the battery-compartment cover out of the remote control unit.
2. Remove the old battery from the remote control unit.
3. Insert a new battery into the remote control unit.
4. Twist the battery-compartment cover on to the remote control unit.
8 Transport and storage of cordless tools and batteries
Transport
CAUTION
Accidental starting during transport !
▶ Always transport your products with the batteries removed!
▶ Remove the battery/batteries.
▶ Never transport batteries loose and unprotected. During transport, batteries should be protected from
excessive shock and vibration and isolated from any conductive materials or other batteries that may
come in contact with the terminals and cause a short circuit. Comply with the locally applicable
regulations for transporting batteries.
▶ Do not send batteries through the mail. Consult your shipper for instructions on how to ship undamaged
batteries.
▶ Prior to each use and before and after prolonged transport, check the product and the batteries for
damage.
Storage
WARNING
Accidental damage caused by defective or leaking batteries !
▶ Always store your products with the batteries removed!
▶ Store the product and the batteries in a cool and dry place. Comply with the temperature limits stated in
the technical data.
▶ Do not store batteries on the charger. Always remove the battery from the charger when the charging
operation has completed.
▶ Never leave batteries in direct sunlight, on sources of heat, or behind glass.
▶ Store the product and batteries where they cannot be accessed by children or unauthorized persons.
▶ Prior to each use and before and after prolonged storage, check the product and the batteries for
damage.
9

Troubleshooting

If a problem occurs, always observe the status indicator of the battery. See the section headed Status
indicators of the Li­ion battery.
If the trouble you are experiencing is not listed in this table or you are unable to rectify the problem by
yourself, contact Hilti Service.
9.1 Malfunctions
Trouble or fault
The battery runs down more
quickly than usual.
The battery does not engage
with an audible "click".
Red LED => flashes at short
intervals and a warning tone
is emitted.
12 English
3
Possible cause
Very low ambient temperature.
The retaining lugs on the battery
are dirty.
The state of charge of the battery
is too low to allow a complete op-
erating cycle.
Action to be taken
▶ Allow the battery to warm up
slowly to room temperature.
▶ Clean the retaining lugs and refit
the battery.
▶ Change the battery and charge
the empty battery.
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