Singer 14SH644 User Manual

4
1. Selection of Stitches ........................................5
2. Handy Reference Chart ..................................6
3. Accessories ...................................................7
4. Needle Information ..........................................7
5. Principal Parts .................................................8
6. How to Open Looper Cover .............................9
7. Principal Parts Behind Looper Cover ..............9
8. Preparation Prior to Sewing ............................9
9. Preparation for Threading ..............................10
•Setting up the thread guide holder ...............10
10. How to Remove and Insert Needles...............11
•To remove needle(s) ....................................11
•To insert needle(s) .......................................11
11. Threading the Machine ..................................12
•Threading diagram .......................................12
•Understanding the color code ......................12
•To thread the machine correctly ...................12
1) Threading the upper looper (Orange) .......12
2) Threading the lower looper (Yellow) ..........14
3) Threading the right needle (Green) ...........16
4) Threading the left needle (Blue) ................18
•Important threading information ...................19
12. How to Change Threads / Tie on Method ......20
13. How to Adjust the Stitch Length ....................21
14. How to Adjust the Seam Width ......................21
•
Width adjustment by changing needle position ...21
•
Width adjustment with adjustment knob ............21
15. How to Adjust the Presser Foot Pressure .....22
16. Differential Feed ............................................23
•Gathered overedge ......................................23
•Stretch overedge .........................................23
17. How to Disengage Movable Upper Knife .......25
18. Free Arm Sewing (Tubular Work) ..................26
19. Standard Overedge and Rolled Hem Stitching .....27
•To sew standard overedge ...........................27
•To sew rolled hem ........................................27
20. Chaining Off and Test Sewing .......................28
21. Suggested Tension Setting ............................29
1) 3-Thread Overlock ...................................29
2) 3-Thread Flatlock .....................................30
3) 3-Thread Wrapped Edge Overlock .........31
4) 4-Thread Ultra Stretch Mock Safety Stitch ........32
22. How to Sew a Rolled Hem ............................33
1) 3-thread standard rolled hem stitching .........34
2) 3-thread upper looper thread wrapped
rolled hem stitching..................................34
23. Stitch Variations and Sewing Techniques ......36
•How to sew a flatlock decorative seam ........36
•How to sew an overlock blind hem .............38
•How to sew pin tucks ...................................38
•Turning square corners ...............................39
•Pin placement ..............................................40
•Securing the thread chain ............................40
•How to reinforce a seam ..............................41
•Braiding by chaining off ...............................41
24. Machine Maintenance ...................................42
•Cleaning the machine ..................................42
•Oiling the machine .......................................42
•How to replace the stationary knife ..............43
25. Troubleshooting Chart ...................................44
26. Relationship between Cloth, Thread and Needle .....45
27. Specification ..................................................46
CONTENTS
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Singer 14SH644 Specifications

General

Type	Automatic sewing machine
Free arm	Yes
Sewing speed	1300
Stitch width	Variable
Product color	White
Automatic buttonhole	-
Sewing machine functions	Overlock
Power supply type	Electromechanical

Weight and Dimensions

Width	320 mm
Height	380 mm
Weight	7500 g