W6 N 9500C QPL, Manual, Page: 57 / 281

Why use W6 bobbins?
What do I do with the lower thread?
8 What do I do with the lower thread?
This section contains information on winding the lower thread:
•
Why use W6 bobbins? (Section 8.1)
•
Removing a W6 plastic bobbin from the black hook race (Section 8.2)
•
Winding a new W6 plastic bobbin (Section 8.3)
•
Inserting a plastic bobbin in the hook race (Section 8.4)
•
Using the upper thread to pull up the lower thread (Section 8.5)
8.1 Why use W6 bobbins?
Only W6 plastic bobbins fit perfectly in your W6 sewing machine. Bobbins made
by other manufacturers and metal bobbins do not fit and lead to a seam with an
unsatisfactory appearance or damage to the machine.
8.2 Removing a W6 plastic bobbin from the black hook
race
CAUTION Risk of injury posed by unexpected start-up
The foot controller is on the floor. This can lead to the machine starting up
unexpectedly if the foot controller is activated by, for example, a child, a
sufficiently heavy pet or accidental contact.
➔
Always unplug the power plug before changing the bobbin.
Carry out the following steps:
1. Set the ‹presser foot lifter› to the upper position.
Then press the ‹Needle Up / Needle Down› button once.
W6 note
Please note: It must be ensured that the thread take-up lever, covered by the
face plate, and the needle are in a specific position before threading and
changing any programs.
Set the Presser foot to the upper position, the thread tension is then open. Press
the Needle Up / Needle Down button once. The thread take-up lever and needle
move to the correct starting position automatically.
•
Failure to do this will always result in a sloppy seam, blockages or
damage to the sewing machine. In the event of any lack of clarity, further
information can be found on www.w6-wertarbeit.de under Service / HELP:
Criteria for optimal threading.
The lower thread has been pulled taut and carefully to the 7 o’clock and 9 o’clock
positions in the silver slot of the black hook race. When pulling it in, you will hear
a definite clicking at the 7 and 9 o’clock positions.
The lower thread tension is active. You have performed a tension test.
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