General Explanation Repair
Messages
thread nest in the hook system Various error cases are possible. They are displayed in
accompanying messages.
Consistent method as follows:
Step 1:
When the needle is not at its highest position,
⦁
raise the needle by turning the handwheel counterclockwise
⦁
if impossible: cut the upper thread, remove the service lid,
disengage the needle bar using the multifunctional tool and
raise the needle. Also refer to «Thread jam in the hook with
needle down», see page 208
Step 2:
⦁
raise the presser foot
Step 3:
⦁
cut the upper and the lower thread above the stitch plate with
scissors
Step 4:
⦁
when the bobbin cover hasn't been opened yet, then open it
►
a message appears «Manual mode for troubleshooting»
offering instruction steps
Step 5:
⦁
unplug the foot control
Step 6:
⦁
remove the needle
Step 7:
⦁
swivel out the hook manually by turning the handwheel
clockwise
Step 8:
⦁
try to turn the handwheel clockwise until the blockade
unwinds. If necessary make use of considerable up to large
force
⦁
if not possible: contact the nearest BERNINA dealer
Step 9:
⦁
remove the bobbin and, if necessary, cut the thread
Step 10:
⦁
remove thread remnants carefully with the tweezers. If the
threads jam, keep turning the handwheel clockwise slowly
and pull the threads out as soon as they come loose
Step 11:
⦁
bring the hook into the illustrated position (see picture on the
left) by turning the handwheel clockwise to thread correctly
Step 12:
⦁
insert the bobbin
Step 13:
⦁
check the setting of the lower thread tension
Step 14:
⦁
swivel in the hook completely by turning the handwheel
counterclockwise and close the bobbin cover
Step 15:
⦁
check the needle and insert it again if it's OK
Step 16:
⦁
plug in the foot control
Step 17:
⦁
quit the messages «Manual mode for troubleshooting» and
«Main motor is not running» or «Check hook»
Hook jams
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