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Threading the machine for overlock and cover/chain stitch
General threading instructions
Thread the machine in the following sequence.
Overlock stitches:
1. Upper looper (blue markings)
2. Lower looper (red markings)
3. Needle C (green markings)
4. Needle L (yellow markings)
Tip:
When threading for the first time, use coloured threads
to match the threading codes, i.e. blue, red, green and
yellow for 4-thread overlock, so that when you test
sew, you can see exactly how the stitch is formed.
Cover stitch/top & bottom cover stitch:
1. Lower looper (purple markings)
2. Needle R (brown markings)
3. Needle C (green markings)
4. Needle L (yellow markings)
5. Wiper thread (grey markings)
Preparation
· Raise the support rod fully
· Raise the needles (Needle stop)
· Raise the presser foot. The tensions release automatically.
· Swing foot out.
· Open the looper cover.
· Raise the upper knife (if wanted)
First thread guide on the
machine
Thread the first guides on the top of the machine as follows:
Holding the thread with both hands slip it into the appro-
priate guide from back left to front right in the direction of
the arrow and pull gently to check that it is lying correctly.
Needle/looper threader
Insert the thread into the threader. Push the rigid end of
the threader through the needle or looper eye and pull it
completely through.
Tip:
When threading for the first time, use the same
coloured threads as the markings, i.e. purple, brown,
green and yellow) for 4 thread cover stitch, so that you
can see exactly how it is formed.
Chain stitch:
1. Lower looper (purple markings)
2. Needle R (brown markings)
Your BERNINA overlocker is equipped with practical
threading aids:
· Stitch display with threading information
· Coloured threading diagram inside the looper cover
· Colour coded threading paths
· Lay-in thread guides
· Threading accessories in the looper cover
2500_DCE_1_englisch_neu 09.10.2007 14:34 Uhr Seite 30
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