Troubleshooting chart – SINGER 14U454B Ultralock User Manual

Page 45

Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".

Advertising
background image

26.

TROUBLESHOOTING CHART

Problem

Solution

Page

Fabric does not

— Lengthen stitch length

23

feed well

— Increase presser foot pressure for heavy weight

fabric

38

— Decrease presser foot pressure for light weight

fabric

38

Needle breaks

— Insert needle correctly

8

— Do not pull fabric while sewing

18

— Tighten needle set screw

8

— Use a larger needle on heavy fabrics

39

Thread breaks

— Check threading

10-17

— Check for tangled or caught thread

22

— Insert needle correctly

8

— Insert new needle, current needle may be bent or

have a blunt point

8

— Use a high quality thread

39

— Loosen thread tension

19-21

Stitches skip

— Insert new needle, current needle may be bent or

have a blunt point

8

— Tighten needle set screw

8

— Insert needle correctly

8

— Change type or size of needle

4

— Check threading

10-- 17

— Increase presser foot pressure

38

— Use a high quality thread

39

Irregular stitches

— Balance thread tension

19-21

— Check for tangled or caught thread

22

— Check threading

10-' 17

Fabric puckers

— Loosen thread tension

19'-21

— Check for tangled or caught thread

22

- Use high quality light weight thread

39

— Shorten stitch length

23

— Decrease presser foot pressure for light weight

fabrics

38

Irregular trimming

— Check alignment of knives

41

— Replace one or both knives

41

Fabric jams

— Close looper cover before sewing

6

Check for tangled or caught thread

Compress thick layers of fabric with conventional

machine before sewing with overlock

22

Machine does not

operate

— Connect machine to power source

6

43

Advertising
This manual is related to the following products: