72
TROUBLESHOOTING
Overview
Condition
Cause
Remedy Page
Fabric does not
feed well.
1. Lengthen stitch length.
2. Increase presser foot pressure for heavy weight fabric.
3. Decrease presser foot pressure for light weight fabric.
36
37
37
Needle breaks
1. Insert needle correctly.
2. Do not pull fabric while sewing.
3. Tighten needle set screw.
4. Use a larger needle on heavy fabrics.
15
40
15
15
Thread breaks.
1. Check threading.
2. Check for tangled or caught thread.
3. Insert needle correctly.
4. Insert new needle, current needle may be bent or have a
blunt point.
5. Use only high quality thread.
6. Loosen thread tension.
21–34
35
15
15
72
40–51
Stitch skip.
1. Insert new needles, current needles may be bent or have
a blunt point. Use only ELx705 overlock needles.
2. Tighten needle set screw.
3. Insert needles correctly.
4. Change type or size of needles.
5. Check threading.
6. Increase presser foot pressure.
7. Use a high quality thread.
9
15
15
15
21–34
37
72
Irregular stitches.
1. Balance thread tension.
2. Check for tangled or caught thread.
3. Check threading.
40–51
35
21–34
Fabric puckers.
1. Loosen thread tension.
2. Check for tangled or caught thread.
3. Use high quality light weight thread.
4. Shorten stitch length.
5. Decrease presser foot pressure for light weight fabrics.
40–55
35
72
36
37
Irregular trimming.
1. Check alignment of knives.
2. Replace one or both knives.
68
68
Fabric jams.
1. Close looper cover before sewing.
2. Check for tangled or caught thread.
3. Compress thick layers of fabric with conventional machine
before sewing with overlock.
10
35
Machine does not
operate.
1. Connect machine to power source and switch it on.
2. Close the looper cover.
10
