Table of Contents
Advertisement
Trouble
Probable Cause
Correct
Operation
Stitches
Upper thread tension too loose.
18
not locked
Improper tension of the lower thread.
8,19
Improper needle for the thread.
9
Upper or lower thread tension too tight.
18,19
Improper threading of upper or lower thread.
8,11
Wrinkled
Needle too thick for the fabric.
9
fabrics
Stitch length too long for the fabric.
13
When sewing very fine fabric, place thin paper
underneath the fabric for better results.
Fabric not
Dust of thread jamming on the feed dog.
42
moving
Feed dog is lowered.
14
Improper needle setting,
9
Needle bent.
Needle clamp screw too loose.
9
Breaking
Upper thread tension too tight.
18
needle
Needle too thin for the fabric.
9
Changing pattern or width of the stitch with
the needle down in the fabric.
13
Setting stitch width more than 3.5 when sewing
with twin needle.
20
Not plugged in properly.
4
Light going
Power supply switch is not on.
4
Ughtbulbrntou
NB. If trouble is still apparent in the machine, please consult your nearest dealer.
Do not try to correct the fault by yourself.
45
Advertisement
Table of Contents
