2.8 Modifications / interventions in the deviceFor reasons of safety, no unauthorized interventions or modifications may be made on the device .All planned modifications must be authorized by the manufacturer in writing.Use only genuine spare parts / genuine wearing parts / genuine accessories from the ZIEHL-ABEGGSE.These parts were specifically designed for the device. There is no guarantee that parts from non-original sources are designed and manufactured in correspondence with load and safety require-ments.Parts and special equipment not supplied by the ZIEHL-ABEGG SE are not approved for use.2.9 Operator’s obligation of diligenceThe device has been designed and constructed with consideration of a hazard analysis and aftercarefully selecting the harmonized standards to be complied with as well as additional technicalspecifications. It thus complies with the state-of-the art and ensures the highest degree of safety.However, this safety can only be implemented in operational practice if all measures necessary forthis purpose are taken. The operator of the installation has the obligation of due diligence to planthese measures and monitor their implementation.In particular, the operator must ensure that• The device is only used as intended (cmp. chapter "Product overview" concerning this)• The installation is operated solely in a flawless, functional condition and that especially the safetydevices are periodically checked for their properly functioning condition• The required personal safety gear is available to and used by the operating, maintenance andrepair personnel• The operating instructions are always readily available at the location where the frequency inverteris being used, are complete and are in legible condition• Only sufficiently qualified and authorized personnel operate, maintain and repair the device• these staff receive regular instruction in all relevant occupational safety and environmental protec-tion issues, are knowledgeable about the operating instructions and, especially, are familiar with thesafety instructions contained therein.• All safety and warning notices attached to the device are never removed and remain legible2.10 Employment of external personnelMaintenance and service work are frequently carried out by external employees who often do notrecognize the specific situations and the thus resulting dangers.These persons must be comprehensively informed about the hazards in their area of activity.You must monitor their working methods in order to intervene in good time if necessary.Original operating instructionsZETADYN 3C Safety instructionsR-TBA08_03-GB 1619 Part.-No. 00163322-GB11/204
