typical GC0303D, Руководство по эксплуатации

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50mm
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12. Threading the bobbin thread (Fig.10)
1.Turn the machine pulley to lift the needle to its
highest position;
2.The bobbin thread should be right twist, place
the bobbin into the bobbin case;
3.Pass the thread through the slot
① and spring
plate ② , and finally pull it out of the notch ③ ;
4.Check that the bobbin should turn clockwise if
the thread is pulled;
5.Hold the latch
④ , and place the bobbin case in
the hook.
13. Threading the needle thread (Fig.11)
Raise the thread take-up lever to its highest position. This will make threading easier and will prevent
the thread from coming out at the sewing start.
50mm thread trails
Threading as below if
the resistance of thread
is large