Reliable MSK-8420B User Manual download pdf (Page 10)

Normal

-7-

hook

thread

sliding plate

hook

sliding plate

tension adjusting screw

loosen

tighten

inner stop piece

thread

4.3.5 Placing bobbin (Fig.18)

Note: when bobbin is placed into the bobbin case,

the thread should be wound properly in the correct

direction shown in the figure.

4.3.6 Drawing thread from the bobbin (Fig.19)

a. Draw the thread end to Bobbin Slot (1) shown in

the figure, and pull it out down through the inner

bobbin stop piece.

b. Hold the thread with left hand , turn the balance

wheel slowly and get the bobbin thread, then draw

them a little apart from the presser foot.

5.1 Thread tension adjustment

All forms of stitches are shown in Fig.20.

The normal stitch of sewing machine is shown as

Fig.(A) If stitch is abnormal , the puckering and thread

breakage will occur, and the needle thread tension and

bobbin thread tension should be adjusted so that the

normal stitch can be obtained.

a. If the stitch seam shows as Fig. 20B, indicates

that the needle thread or bobbin thread tension

is too loose , then turn the thread tension screw

counter-clockwise to release the needle thread

pressure; or turn the adjusting screw with a

screwdriver to increase the bobbin thread ten-

sion.( see Fig.20,22 )

5. Machine Adjustment

thread

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 58 59

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Reliable MSK-8420B User Manual Page 10