Circumventing The Air Theader - Bernina L 890 QUILTERS EDITION User Manual

Circumventing the air theader

Some thick or decorative threads cannot be threaded through the air threader nozzles or don't provide
optimal stitch formations when these threads are threaded through the air threader pipes.
Alternatively, such threads may be threaded through the air threader circumvention. This reduces the friction
in the air threader pipes and results in a lower thread tension.
Unfavorable Stitch Formations
NOTICE
Too thick looper thread creates high friction in the looper eye and in the air threader pipe. As a result, the
machine cannot ensure an optimum stitch formation. It is therefore recommended to choose a thinner
thread.
Prerequisite:
• The looper thread is threaded and can serve as auxiliary thread.
> Open the threader cover and the looper cover.
> Set the air threader connector to «0».
> Using the tweezers pull the looper thread out of the air threader pipe exit creating a thread loop.
> Cut the loop with scissors.
> Replace the looper thread on the thread stand with the desired special thread.
> Thread the special thread and guide it through the respective colored eyelet of the air threader
circumvention.
Threading
87