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SERGER / OVERLOCK STITCH FORMATIONSSERGER / OVERLOCK STITCH FORMATIONS
Wrong threading may cause skipped stitches,
breaking threads, or other problems.
Try to master the correct threading before moving
on to test sewing. Threading must be carried out in
the sequence of Lower Looper-Upper Looper-
Needle.
Open the front cover and the working table. Raise
needle to its highest point by turning hand wheel
towards you, and raise the presser foot.
Before re-threading lower looper, remove thread
from needle eye first, then re-thread the lower
looper. This will prevent tangling.
NOTE:
Thread tension is released when the presser foot is
lifted up.
THREADING LOWER LOOPER
1. Feed the thread through the thread guide as
illustrated
2. Pull the lower thread through tension slot.
Holding the thread with your left hand, pull down
with right hand firmly.
3. Draw the thread through thread guide as
illustrated.
4. Pass the thread through lower looper eye, and
hook it around part (I) as indicated by the
arrow. Leave about 4” (10 cm) extra thread.
SERGER / OVERLOCK STITCH FORMATIONS
THREADING
THREADING UPPER LOOPER
1. Feed the thread through the thread guide as
illustrated.
2. Pull the upper thread through the slot. Holding
the thread with your left hand, pull down with
right hand firmly.
3. Draw the thread through the thread guide as
illustrated. When threading according to the
instruction, upper looper thread pass the thread
guide (A) automatically after rotating hand
wheel.
4. Pass the thread through wire thread guide and
looper eye, leaving an excess length of about 4”
(10 cm).
I
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