3-23 Bobbin winding problem
- Place empty bobbin on spindle and push it
to the right.
- Put the thread into the spool rod, and put
the spool rod cover on it.
- Lead thread from spool to back side of
thread guide (a) by following the indication.
- Wind thread clockwise around bobbin
winder tension disc. (1)
- Turn on the power switch and step on the
foot controller to run the machine.
- Observe the shape of bobbin winding:
When the lower part of bobbin winding is
thicker, turn the screw (b) of threader guide
counter-clockwise. (2)
When the upper part of bobbin is thicker,
turn the sc re w (c) of th reader gui de
clockwise.
- Observe the intensity:
If bobbin winding is not 80 percent full,
adjust by turning the screw (c) of bobbin
winder bracket shaft clockwise. (3)
If bobbin is over 80 percent full, adjust
by turning the screw (c) of bobbin winder
bracket shaft counter-clockwise.
- Bobbin should be 80 percent full and evenly
lled after adjustment.
- Push bobbin to left after adjustment before
sewing.
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