8.3 Service indicator
NOTE
The power tool is equipped with a service indicator.
Indicator | Constant red light | End of service interval - servicing is due. After the |
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| lamp lights for the first time, the power tool may |
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| continue to be used for several hours before the |
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| automatic |
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| power tool is always ready for use, it should be |
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| returned to Hilti for servicing in good time. |
en
8.4 Maintenance
WARNING
Repairs to the electrical section of the power tool may be carried out only by trained electrical spe- cialists.
Check all external parts of the power tool for damage at regular intervals and check that all controls operate faultlessly. Do not operate the power tool if parts
are damaged or when the controls do not function faultlessly. If necessary, the power tool should be repaired by Hilti Service.
8.5Checking the power tool after care and maintenance
After carrying out care and maintenance work on the power tool, check that all protective and safety devices are fitted and that they function faultlessly.
9. Troubleshooting
Fault | Possible cause | Remedy |
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The power tool doesn’t start. | Electronics initialization in progress | Switch the power tool off and on |
| (takes up to 4 seconds after | again. |
| plugging in). |
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| Interruption in the electric supply. | Plug in another electric appliance |
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| and check whether it works. |
| The supply cord or plug is defective. | Have it checked by a trained |
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| electrical specialist and replaced if |
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| necessary. |
| Generator with sleep mode. | Apply a load to the generator by |
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| connecting another appliance (e.g. |
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| a lamp). Subsequently switch the |
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| power tool off and on again. |
No hammering action. | The power tool is too cold. | Allow the power tool to warm |
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| up to the minimum operating |
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| temperature. |
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| See section: 7.2.2 Chiseling |
| A fault has occurred in the power | If necessary, the power tool should |
| tool. | be repaired by Hilti Service. |
The power tool doesn’t start | Temporary fault (e.g. overheating | Release the switch and allow the |
or cuts out during operation | or overvoltage). | power tool to cool down or connect |
and the LED blinks red. |
| it to a different electric supply. |
The power tool doesn’t start or | Advance warning of need for | Have the power tool serviced or |
cuts out during operation and | servicing. | repaired by Hilti Service. |
the LED lights red constantly. |
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