Bernina 820 Owner's Manual page 116

cleaning
turn power switch to «0» (off) and remove
plug from electrical outlet when perfor-
ming maintenance. never use alcohol,
petrol, white spirit or any type of solvent to
clean the sewing computer.
116
cleaning the stitch plate and the hook
Remove thread remnants and lint from under the stitch
plate.
► remove presser foot and needle
► press the stitch plate down at the back right corner and
remove
► open bobbin cover door
► remove the bobbin
► clean the stitch plate and the lower thread indicator with
the lint brush or use a vacuum cleaner
► clean the hook and hook race with the lint brush. Do not
use sharp instruments for cleaning!
► insert the bobbin
► close the cover
► replace the stitch plate
cleaning the automatic thread cutter
► see page
Lubricants
► open bobbin cover door
► with your left hand, hold the bobbin-case; with your right
hand, turn the hand wheel clockwise until the hook race
is visible
► apply a tiny amount of universal sewing machine oil in
the hook race
► close bobbin cover door
► briefly run the sewing computer in idle, so sewing
project is not soiled
cleaning the Screen and the Sewing
computer
► wipe with a soft, damp cloth
032298.53.04_1204_B820_EN
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