Selecting The Needle Thread; Selecting The Looper Thread - Bernina L 890 User Manual

Sewing start

Selecting the needle thread

Needle size and thread type must be carefully matched. The correct needle size depends both on the
selected thread type and the fabric to be sewn. The fabric weight and type determine the thread weight,
needle size and point form.
Needle thicknesses of 70 - 90 can be used on the machine.
Check the needle/thread combination

Selecting the looper thread

A wide variety of thread types can be used as looper threads. They can be threaded using the air threading
system. The air threading circumvention must be used for thicker threads. (see page 92)
NOTICE Damage by coated or waxed threads
Coated or waxed threads may lose some of their coating in the air threader pipes, resulting in permanent
blocking of the pipes. Repair by a BERNINA dealer will be necessary. Avoid use of coated or waxed threads.
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Thread type
Polyester overlock thread No. 120
Polyester multifilament < No. 120
Wooly nylon
Decorative thread/yarn
Metallic thread
The needle/thread combination is correct, when the thread fits perfectly into the long
groove and goes easily through the needle eye.
The thread can break and skipped stitches can occur when there is too much clearance in
the long groove and the needle eye.
The thread can break and get stuck when the thread scrapes against the edge of the long
groove not fit well into the needle eye optimally.
Needle size
80 – 90
70 – 90
80 – 90
80 – 90
80 – 90