9. Maintenance
Caution! Danger of injury!
Turn off main switch!
Maintenance may only be carried out with the sewing
machine switched off.
Maintenance work must be carried out no less frequently than at the intervals given in
the tables (see “operating hours” column).
Maintenance intervals may need to be shorter when processing heavy-shedding
materials.
9.1 Cleaning and inspection
A clean sewing machine is a protection against malfunctions.
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