Tutti i diritti riservati /All rights reservedTous droits réservés /Alle Rechte vorbehalten3156 - 3156 L, M, H3306 - 3306 L, M, HTABLE OF CONTENTSOperating instructions ................................................................................... page 1Operator safety .................................................................................. page 1General information about use of the vacuum cleaner ..................... page 1Proper uses ........................................................................................ page 2Versions and variations ...................................................................... page 2Classification in compliance with standard EN 60335-2-69 - Annex AA.. page 3Dust emissions into the environment ................................................. page 3General recommendations ................................................................. page 4Description of the vacuum cleaner - Labels ...................................... page 6Optional kits........................................................................................ page 8Accessories ........................................................................................ page 8Packing and unpacking ...................................................................... page 9Setting to work - connection to the power supply .............................. page 10Extensions .......................................................................................... page 11Dry applications .................................................................................. page 12Maintenance and repairs ................................................................... page 13Dimensions - Technical data .............................................................. page 15Controls, indicators and connections ................................................. page 19Inspection prior to starting .................................................................. page 20Starting up .......................................................................................... page 20Operating the vacuum ........................................................................ page 21Shaking the main filter ....................................................................... page 23Stopping - emergency stopping ......................................................... page 23Emptying the container ...................................................................... page 24At the end of a cleaning session ........................................................ page 27Maintenance, cleaning and decontamination .................................... page 28How to remove and replace the main and Hepa filters ..................... page 30Main filter replacement ....................................................................... page 31Hepa/Ulpa filter replacement ............................................................. page 33Inspecting and cleaning the motor cooling fan .................................. page 34Seal inspection ................................................................................... page 35Cleaning and replacing the separator ................................................ page 38Disposal of the machine ..................................................................... page 39Wiring diagrams ................................................................................. page 40Recommended spare parts ................................................................ page 41Troubleshooting ................................................................................. page 44Additional information about special versions “B1” ........................... page 47