Maintenance and care
When to change the dustbag
Change the dustbag when the colored marker in the dustbag change indicator fills the display.
The dust bags are disposable and intended to be used only once. Do not attempt to reuse.
Checking the dustbag change indicator
Perform this test with the SBD
SBB
^Attach the floor tool to the vacuum cleaner.
^Turn the vacuum cleaner on and select the highest power setting.
^Lift the floor tool slightly off the floor. If the marker completely fills the indicator window, the dust bag needs to be changed.
How the dustbag change indicator works
The dustbag change indicator is designed to show when the bag is full of common household dust and to measure the amount of air flow through the dustbag. Normal household dust is a mixture of dust, hair, carpet fluff, threads, sand, etc.
However, if fine dust, such as drill dust, sand, plaster or flour is vacuumed, the pores of the dustbag will become blocked. The marker will indicate that the bag is "full" even when it is not. The dustbag should be changed because the suction power is greatly reduced.
If the bag is bulging with pet fur, hair, carpet fluff, etc., the indicator may not register "full". This is because the air flow of the dustbag may still be high enough not to activate the marker to show maximum. The dustbag should still be changed.
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