31
AFTER SALES SUPPORT
AUS Hotline Costs
1300 526 663
AUS
MODEL: 311 PRODUCT CODE: 52829 04/2016
Troubleshooting
Condition
Cause
Reference
The needle
thread breaks.
1. The needle thread is not threaded properly.
2. The needle thread tension is too tight.
3. The needle is bent or blunt.
4. The needle is incorrectly inserted.
5. The needle thread and the bobbin thread are not set properly
under the presser foot at the beginning of sewing.
6. The fabric is not drawn to the rear when the sewing has
finished.
7. The thread is either too heavy or too fine for the needle.
Pages 18, 19
Page 19
Page 15
Page 15
Page 20
Page 20
Page 15
The bobbin
thread breaks.
1. The bobbin thread is not threaded properly in the bobbin case
and shuttle.
2. Lint has collected in the shuttle area.
3. The bobbin is damaged and does not turn smoothly.
Page 17
Page 29
Replace the bobbin.
The needle
breaks.
1. The needle is incorrectly inserted.
2. The needle is bent or blunt.
3. The needle clamp screw is loose.
4. The needle thread tension is too tight.
5. The fabric is not drawn to the rear when the sewing has
finished.
6. The needle is too fine for the fabric being sewn.
Page 15
Page 15
Page 15
Page 19
Page 20
Page 15
Skipped
stitches.
1. The needle is incorrectly inserted.
2. The needle is bent or blunt.
2. The needle and/or threads are not suitable for the work being
sewn.
3. A blue tip needle is not being used for sewing stretch, very fine
fabrics and synthetics.
4. The needle thread is not threaded properly.
5. The wrong needle is being used.
Page 15
Page 15
Page 15
Pages 15
Page 18, 19
Change the needle.
Seam puckering 1. The needle thread tension is too tight.
2. The needle thread is not threaded properly.
3. The needle is too heavy for the fabric being sewn.
4. The stitch length is too long for the fabric.
Page 19
Pages 18, 19
Page 15
Make stitch shorter.
The fabric is
not feeding
smoothly.
1. The feed dog is packed with lint.
2. The stitches are too fine.
Page 29
Make stitch longer.
The machine
does not work.
1. The machine is not plugged in.
2. A thread is caught in the shuttle race.
3. The clutch is disengaged.
Page 13
Page 29
Page 17
Noisy operation 1. There is thread caught in the shuttle race.
2. Lint has built up in the shuttle or the shuttle race.
Page 29
Page 29
Other Useful Information