Premier MCO-5199 Manual De Instrucciones página 36

Loose stitch
Crinkle
Staggering stitch
Machine doesn't operate
Abnormal noise made by machine
3. Needle and thread is
improperly selected.
4. The presser foot is improperly
selected.
1. The upper thread is not
threaded correctly.
2. The lower thread is not
threaded correctly.
3. Needle and thread is
improperly selected.
4. Thread tension is not set
correctly
1. The upper thread tension is too
large.
2. The upper thread is not
threaded correctly.
3. The needle is to thick.
4. Cloth is too thin or soft.
1. Thread is not uniform in size
2. The thread is not threaded
correctly.
3. Cloth is pulled uneven.
1. Power doesn't be supplied.
2. Thread is blocked in the shuttle
race.
3. Bobbin winder spindle doesn't
be pulled back after thread is
wound
1. The lubricant oil is exhausted.
2. There are rags on the shuttle
race.
3. Needle is broken.
3. Select suitable needle
according to the requirement
4. Select the proper presser foot
1. Thread it again.
2. Thread it again
3. Select proper needle and
thread
4. Set it again.
1. Mount it again.
2. Thread it again.
3. Select suitable needle
4. Put paper gasket under cloth
1. Select good-quality thread.
2. Thread it again.
3. Automatically feed cloth by
machine
1. Connect power supply.
2. Take out shuttle hook and
clean it.
3. Pull back bobbin winder spindle
1. Add sewing-machine oil into the
moving parts.
2. Clean shuttle race
3. Replace needle
P-17