16
4) Routing the upper thread
Place the thread take-up lever to the highest position and
hang the upper thread as in Figure 24.
※ The adequate length of upper thread extending from the
needle hole is 50 mm for initial sewing.
[Figure 24]
50mm
Caution
▶ Turn off the power switch when routing the upper thread.
▶ If the operator mistakenly steps on the pedal while switched on, the machine will start automatically
and can cause physical injuries.
▶ When using the clutch motor, be aware that the motor will continue to rotate for a while after the
power is switched off due to inertia.
▶ Start to work on the sewing machine only after the motor has come to a complete stop.
5) Adjusting the thread tension
⑴ Adjusting the thread tension
As in Figure 25, turning clockwise the tension
adjustment nut ① of the thread tension control
assembly makes the upper thread tension stronger and
counter clockwise makes it weaker.
⑵ Adjusting the lower thread tension
As in Figure 26, turning the tension adjustment screw
② of the hook clockwise makes the lower thread
tension stronger and counterclockwise makes it weaker.
[Figure 25] [Figure 26]
Upper thread tension is weak
Upper thread tension is strong
Good sewing
①
②
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