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8.5) THREAD WINDING
8.5.1) Lower Thread Winding
1) Insert the bobbin into the thread winder shaft as in the figure below and manually wind the thread 5 to 6 times
on the bobbin in the direction of winding the thread. Then press the start button.
2) When the thread winding condition is poor, press the stop button. It will immediately stop the winding
shaft.
8.5.2) Adjustment of Thread Volume on Bobbin
1) When winding thread on the bobbin, wind the
thread up to 80% of the bobbin size in
diameter as in the figure.
80%
2) The thread volume on the bobbin can be
adjusted by using the thread winding knob.
When the knob is turned clockwise, the thread
volume increases. When the knob is turned
counterclockwise, the thread volume
decreases.
Knob
Thread Guide Body
Fastening Screw for Thread Guide
Thread Winding Shaft
Bobbin
Thread Tension Adjusting Nut
SSTTAA
RRTT
SSTTOO
PP
1) If the lower thread volume wound on the bobbin is too thick, it will negatively affect the
release of the lower thread.
2) 80% of the bobbin in size is equivalent to some 80m in case of a standard bobbin.
CAUTION