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71
Maintenance
WARNING!
Please refer to the safety instructions.
Upper knife
The upper knife (moving knife) is made from special material
and generally does not need replacing.
Should it get damaged, it can be replaced by your local
BERNINA dealer.
Replacing the lower knife
· Open the looper cover.
· Raise fully the needles.
· Raise the upper knife.
· Loosen the setscrew on the lower knife retaining plate with
the large screwdriver.
· Remove the lower knife.
· Fit the replacement knife (accessory bag) in the groove so
that the sharp edge is in line with the stitch plate.
· Retighten the setscrew.
· Lower the upper knife.
· Close the looper cover.
· Test sew.
Replacing the bulb
Using the special bulb holder provided in the accessory bag,
press upwards against the bulb, turn to the left and remove
the bulb.
Place the new bulb on the holder. Insert into the bulb
fixation, press upwards and turn to the right until the bulb
engages.
Replacement bulbs for your BERNINA overlocker are available
at your BERNINA dealer. Use max.12 Volt /5 Watt bulbs.
Cleaning and lubricating
Dust and fluff collect on and in the machine. This should be
removed regularly.
Your BERNINA overlocker requires very little lubrication as
the main components are made of special materials. Now and
then lubricate the points illustrated.
1
Always disconnect the machine from the electricity
supply when carrying out any of the following tasks.
2500_DCE_2_englisch_neu 09.10.2007 15:02 Uhr Seite 71