Bernette b77, Руководство пользователя

Страница: 92 / 106

Maintenance and Cleaning
92
2022-08 EN 5020077.40A.04
11 Maintenance and Cleaning
11.1 Cleaning and Maintenance Intervals
To ensure the functionality and sewing quality of the machine, the machine must be cleaned and maintained
regularly. The intervals for cleaning and maintenance of the machine depend on various factors, such as the
fabrics and threads used.
As an advice to clean the machine, a message appears after 500,000 stitches.
As an advice to have the machine maintained, a message appears when 4,000,000 stitches have been sewn
after a service.
11.2 Cleaning the Display
> Clean the display when it is switched off with a soft slightly damp microfiber cloth.
11.3 Cleaning the Feed Dog
Remaining threads under the stitch plate must occasionally be removed.
> Raise the needle and presser foot.
CAUTION
Electronically Driven Components
Risk of injury near the needle and the hook.
> Switch the machine off and disconnect it from the power supply system.
> Remove the needle and presser foot.
> Lower feed dog.
> Remove the stitch plate.
NOTICE
Dust and Thread Residues Inside the Machine
Damage to mechanical and electronic components.
> Use a brush or a soft cloth.
> Do not use compressed air spray.
> Clean the feed dog with the brush.