Operating Instruction AG 500-A22 (02)

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Maintenance
• Check all visible parts and controls for signs of damage at regular intervals and make sure that they all
function correctly.
• Do not operate the product if signs of damage are found or if parts malfunction. Have it repaired
immediately by Hilti Service.
• After cleaning and maintenance, fit all guards or protective devices and check that they function correctly.
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 the product can be found at your
local Hilti Store or online at: www.hilti.group.
9 Transport and storage of cordless tools
Transport
CAUTION
Accidental starting during transport !
▶ Always transport your products with the batteries removed!
▶ Remove the battery.
▶ Never transport batteries in bulk form (loose, unprotected).
▶ Check the tool and batteries for damage before use after long periods of transport.
Storage
CAUTION
Accidental damage caused by defective or leaking batteries !
▶ Always store your products with the batteries removed!
▶ Store the tool and batteries in a place that is as cool and dry as possible.
▶ Never store batteries in direct sunlight, on heating units or behind a window pane.
▶ Store the tool and batteries in a place where they cannot be accessed by children or unauthorized
persons.
▶ Check the tool and batteries for damage before use after long periods of storage.
10 Troubleshooting
If the trouble you are experiencing is not listed in this table or you are unable to remedy the problem by
yourself, please contact Hilti Service.
10.1 Troubleshooting
Trouble or fault Possible cause Action to be taken
The battery runs down more
quickly than usual.
Very low ambient temperature. ▶ Allow the battery to warm up
slowly to room temperature.
The battery doesn’t engage
with an audible click.
The retaining lugs on the battery
are dirty.
▶ Clean the retaining lugs and refit
the battery.
1 LED blinks.
The power tool does not run.
Low battery. ▶ Change the battery and charge
the empty battery.
The battery is too hot or too cold. ▶ Allow the battery to cool down
or warm up slowly to room
temperature.
All 4 LEDs blink.
The power tool does not run.
The tool has been overloaded. ▶ Release the control switch and
then press it again. Then allow
the power tool to run under no
load for approx. 30 seconds.
The angle grinder or battery
gets very hot.
Electrical fault. ▶ Switch the power tool off im-
mediately, remove the battery,
keep it under observation, allow
it to cool down and contact Hilti
Service.