11
11
13
13
12
12
13. Threading (Fig11)
14. Adjusting the stitch length (Fig.12)
15. Adjusting the thread tension (Fig.13)
Thread in the order as shown in Fig.
11
Turn the stitch length dial plate 1 leftward and
rightward to make the marker align with the required
figure. Press down the reverse feed lever 2 to start
backward sewing, and release it to start normal
sewing.
1.Adjusting the tension of the needle thread
Turn the nut 1 clockwise to increase the tension
of the needle thread; on the contrary, to reduce the
tension of the needle thread.
2.Adjusting the tension of the bobbin thread.
Turn the screw 2 clockwise to increase the tension
of the bobbin thread, on the contrary, to reduce the
tension of the bobbin thread.
Weaken
Strengthen
Weaken
Strengthen
Summary of Contents for 4200SW
Page 1: ...INDUSTRIAL SEWING MACHINE INSTRUCTION MANUAL 4200SW...
Page 10: ...1 Arm and bed...
Page 12: ...2 Upper shaft and thread take up mechanism...
Page 14: ...3 Needle bar vibrating parts...
Page 16: ...4 Upper feed parts...
Page 18: ...5 Feed parts...
Page 20: ...6 Lower shaft and rotating hook shaft...
Page 22: ...7 Thread tension and winding parts...
Page 24: ...8 Knee control parts...
Page 26: ...9 Lubrication...
Page 28: ...10 Accessories...