─ Before working on the crane, disconnect the power line and wait at least four minutes until the voltage has dissipated.
─ Only have trained electricians perform the work on the crane electrical system!
─ Changes that impair safety, as well as extensions and modifications, are prohibited and may only be carried out by ABUS. Opening the LIS-SE is prohibited!
─ If the LIS-SE is incorrectly connected, the LIS-SE itself or other components could be damaged.