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8
Cleaning
Device components
Fan grids
Clean the device componetns that are accessible from the outside regularly. The cleaning fre‐
quency depends on the operating environment: damp, smoky or particularly dirty environ‐
ments can cause greater accumulation of dirt on the device components.
Clean with a dry soft cloth.
n
n
Stubborn dirt can be removed with a slightly dampened cloth.
Never use solvents or alcohol for cleaning.
n
The fan grids of the device must be cleaned on a regular basis to remove dust and dirt. Before
cleaning, switch off the device and disconnect AC-powered devices from the mains. Use a lint-
free damp cloth for cleaning. Never use solvents or alcohol for cleaning.
HB-40R
Cleaning
23
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