AERO service manual EN v1.0 3/24Preface / Safety instructions APrefaceThis repair manual contains a detailed description of the main repair work for wet and dry cleaners ofthe Nilfisk-ALTO AERO Series. Repair work requires a suitable testing workplace with the necessary power supply. If operating errors are evident, refer the customer to the operating instructions. A fault in the equipment can have a number of causes. Chapter “C” Troubleshooting will help you here. Refer to the illustrated spare parts lists during repairs. They show the assembly position and the se-quence in which the individual components should be assembled. Always observe “Technical Service Bulletin” (TSB) sheets! They contain information on technical modifi-cations made after publication of this repair manual.TSB sheets are also valid as a supplement to the spare part list until publication of a new edition!Repair manuals and technical information sheets should be available at the site where repairs arecarried out. It is not permitted to give them to third parties.Use original Nilfisk-ALTO spare parts only!Safety InstructionsFor your own safety!Before using the cleaner, always read theoperating instructions and keep themreadily available.Only allow the vacuum cleaner to be usedby persons who have been trained in itsuse and who have been explicitlyauthorized to use it.Repairs should only be made by someone who hasreceived proper instructions for the job or who is aqualified electrician.After the repair or modification an electricalexamination is to be performed according toEN 62638Observe national safety directives and regulations for theelectrical engineering trade, in particular:IEC 60335-2-69EN 60335-2-69DIN VDE 105 Part 1:Operation of power Installation.EN 62638:Repairing, modifying and testing electrical installations.