01englishIVB 3-HIVB 5-HIVB 7-HContents1 Important safetyinstructions2 Description3 Before start-up4 Operation5 Applications andtechniques6 After finishing work7 Maintenance8 Troubleshooting9 Further information............................................................................................22.1 Purpose ................................................................................52.2 Operating elements ..............................................................53.1 Assembling the cleaner ........................................................64.1 Connections .........................................................................64.1.1 Connecting the suction hose ................................................64.1.2 Electrical connection ............................................................64.1.3 Connecting electrical appliances ..........................................74.2 Switching on the vacuum cleaner .........................................74.2.1 Switch position “I” .................................................................74.2.2 Switch position „auto“ ...........................................................74.2.3 Suction power control ...........................................................74.3 Check volume flow monitor ..................................................74.4 Acoustic warning ..................................................................84.5 Cleaning the filter element (IVB 3-H)....................................84.6 Cleaning the filter element (IVB 5-H/7-H) .............................85.1 Techniques ...........................................................................95.1.1 Picking up dry substances....................................................95.1.2 Picking up liquids..................................................................96.1 Switching the vacuum cleaner off and storage ...................107.1 Maintenance plan ...............................................................107.2 Maintenance work ..............................................................117.2.1 Replacing the waste bag ....................................................117.2.2 Replacing the filter bag.......................................................117.2.3 Replacing filter element „H“ (IVB 3-H) ................................127.2.4 Replacing filter element „H“ (IVB 5-H/7-H) .........................127.2.5 Emptying dirt tank (IVB 3-H/5-H)........................................137.2.6 Emptying dirt tank (IVB 7-H) ..............................................13..........................................................................................149.1 Recycling the vacuum cleaner ...........................................159.2 Guarantee ..........................................................................159.3 Tests and approvals............................................................159.4 Technical data ....................................................................169.5 Accessories ........................................................................169.6 EC declaration of conformity ..............................................16