SunStar KM-380BL, User Manual

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11
1) Inserting needle
KM-380BL/390BL
As in Figure 9, move the needle upper end so that it directly
touches the upper side of the stopper hole
when the groove
of the needle is inserted facing left. Then, use the fixing
screw to fix the position of the needle.
[Figure 9]
3
Machine Adjustment
Caution
▶ Always turn off the power when mounting a needle.
If the operator mistakenly steps on the pedal while the power is on, the machine will start
automatically and can result in physical injuries.
▶
When using clutch motor, be aware that the motor will continue to rotate for a while even 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.
2) Inserting lower thread to bobbin
KM-380BL/390BL
a. Pass the thread through the hole from back to front of the
tension adjustment dish .
b. Pull the thread to bobbin and wind it clockwise 5 or 6
times from the lower side.
c. Push the lever so that the pulley touches V-belt and
operate the machine.
d. When the lower thread is winded thoroughly up to the
bobbin, the pulley separates automatically from the V-belt.
(Refer to Figure 10)
3) Adjustment of inserting lower thread
KM-380BL/390BL
a. In case that the lower thread winds up irregularly, loosen the screw and adjust it by moving from side to side and tighten the
screw again.
b. The amount of winded lower thread increases when the adjustment screw turns clockwise and it decreases turns counter
clockwise.
c. Turning the nut clockwise makes the lower thread tension winded to the bobbin stronger and counterclockwise makes it weaker.
[Figure 10]
Caution
▶
Turn off the power when adjusting the lower thread tension.
If the operator mistakenly steps down 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 even
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.