Maintenance; Cleaning - Bernina Bernette 55 Manual

EN

Maintenance

Caution:
Main switch on "0". Disconnect machine
from electricity supply before inserting or
removing any parts and before cleaning.

Cleaning

Remove the stitch plate:
Raise the needle to its highest position.
Remove the extension table and open the
hinged front cover on the front of the free
arm. Loosen the two screws, then remove
the stitch plate. (1)
Cleaning and lubricating the hook:
Take out the bobbin case by opening its
latch and pulling it out from the shuttle
race (3). Snap the two hook retaining arms
(a) outwards. Remove the hook race cover
(b) and the hook (c).Clean first the feed
dogs with the brush (2). Then clean with a
soft cloth hook (c), hook race (d) and hook
race cover (b). Lubricate at the point (d) (1
to 2 drops) with sewing machine oil. Turn
the handwheel until the driver (e) is in the
left position. Replace the hook (c) then the
hook race cover (b), snap back the two
retaining arms (a). Insert bobbin and
bobbin case and replace the stitch plate.
Note:
When the needle is lowered, the shuttle
hook cannot be removed.
Important:
Fabric, fluff and threads must be removed
regularly. Your machine should be serviced
at regular intervals at your local dealer.
EN Maintenance
Caution:
Main switch on "0". Disconnect machine
from electricity supply before inserting or
removing any parts and before cleaning.
Cleaning
Remove the stitch plate
Raise the needle to its highest position.
Remove the presser foot.
Open the bobbin cover plate (A-1), remove
the two screws (A-2) then remove the
stitch plate.
Lift up the bobbin holder and remove
it. (B-2)
Clean the hook race, feed dog and bobbin
holder with a brush, then clean them with
a soft, dry cloth. (B-3)
Replace the bobbin holder into the hook
race so that the tip (a) fits to the stopper
(b). (B-4)
Replace the stitch plate and the two
screws.
Insert the bobbin.
Close the bobbin cover plate, replace the
presser foot. (A-1)
Important:
Fabric, fluff and threads must be removed
regulary. Your machine should be serviced
at regular intervals at your local dealer.