Typical GC 20606-L18 [10/38] Ò³ãæ 10

5. Machine adjustment

3.4 Placing bobbin (Fig. 15)

Note: when bobbin is placed into the bobbin case, the

thread should be wound properly in the correct direction

shown in the figure. .

3.5 Drawing thread from the bobbin (Fig. 16)

A. Draw the thread end to bobbin slot ¢Ù shown in the

figure, and pull it out down through the inner bobbin

stop piece.

B. Hold the thread end with left hand, turn the hand

wheel slowly and get the bobbin thread, then draw them

a little apart from the presser foot.

1. Adjust the needle thread tension and bobbin

thread tension

All forms of stitches are shown in Fig. 20

The normal stitch of sewing machine is shown in Fig.

17A. If stitch is abnormal, the puckering and thread

breakage will occur, the needle thread tension and

bobbin thread tension should be adjusted so that the

normal stitch can be obtained. .

Normal stitch seam

Needle thread too loose or bobbin thread too tight

Needle thread too tight or bobbin thread too loose

Inner stop piece

Thread

Hook

Sliding plate