W6 WERTARBEIT N 656D Free Arm, Руководство пользователя

Страница: 90 / 102

Troubleshooting
Help
90
Manual • Overlock W6 N 656D Free Arm • 06/03/2019 • 1.0 • GBR
14 Help
14.1 Troubleshooting
The following table provides an overview of possible causes of faults
.
The
information provided in this table can be used to resolve a range of
different issues.
Should you be unable to rectify the fault, contact your
closest customer service centre.
Problem Solution
Fabric is not trans-
ported evenly Increase the stitch length. See
"
Operating
elements“ >
"
Stitch length dial“ (
p
age 27).
Increase the presser foot pressure in the case
of heavy fabrics. See
"
Operating elements“ >
"
Presser foot pressure dial“ (
p
age 26).
Reduce the presser foot pressure in the case of
lighter fabrics. See
"
Operating elements“ >
"
Presser foot pressure dial“ (
p
age 26).
Check the differential feed,
"Setting the
differential feed dial"
(
p
age
30
).
Check the metal needle plate and the
presser foot for needle strikes.
Replace
the
damaged parts.
Needle breakage Insert the needle correctly. See
"
Changing
needles“ >
"
Inserting a needle“ (
p
age 38).
Do not pull the fabric when sewing.
Tighten the needle clamp. See
"
Changing
needles“ >
"
Inserting a needle“ (
p
age 38).
When sewing thicker fabrics, use three instead
of four threads and remove the left-hand needle.
Increase the stitch len
gth and cutting width.