Tabla de contenido
Publicidad
Troubleshooting
f
Condition
The needle thread
1,
breaks.
2,
3
4
5
6
7.
"['he bobbin thread
breaks.
!
The needle breaks,
t
2
3
4
5,
Skipped stitches
1_
2_
3..
4
5
I
6
Seam puckering
t
2
3
4
The cloth is not
feeding
smoothly,
Cause
The needle thread is not threaded properly_
The needle thread tension is too tight.
The needle is bent or blunt.
The needle is incorrectly inserted.
The needle thread and the bobbin thread are not set properly
under the presser foot when sewing is starting
The fabric is not drawn to the rear when sewing is finished.
The thread is too heavy or too fine for the needle.
...........
L ....................
R efe re nce
Page 24
Pages 26,28
Page 10
Page 10
Page 24,26
Page 32
Page 14
Page 22
Page 70
Changethe
bobbin
Page 10
Page 10
Page10
Pages 26,28
Page 32
Page14
Page 10
Page 10
Page t4
Page 14
Page 24
Changethe
needle
Pages 26,28
Page 24
Page 14
Make stitch denser
Page 68
Make stitch coarser
Page 38
Page 6
Page 70
Pages 18,20
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 doesn't turn smoothly.
The needle is incorrectly inserted.
The needle is bent or blunt.
The needle clamp screw is loose.
The needle thread tension is too tight..
The fabric is not drawn to the rear when sewing is finished,.
The needle is too fine for the fabric being sewn,
The needle is incorrectly inserted
The needle is bent or blunt
The needle and/or threads are not suitable for the work being
sewn_
A blue needle is not being used for sewing stretch, very fine
fabrics and synthetics
The needle thread is not threaded properly..
The wrong needle is used.
The needle thread tension is too tight.
The needle thread is not threaded properly
The needle is too heavy for the fabric being sewn.
The stitch length is too long for the fabric,.
1 The feed dog is packed with lint.
2 The stitches are too fine.
3. The feed dog is not raised after "drop feed" sewing.
The machine
I
The machine is not plugged in.
doesn't
work.
2 A thread is caught in the shuttle race.
3. Push-clutch is disengaged.
Patterns are
distorted.
Noisy operation
1. The stitch is not balanced.
1. There is thread caught in the hook race
2, Lint has built up in the shuttle or the shuttle race.
Page 30
Page 70
Page 70
74
Publicidad
Tabla de contenido
