20
Troubleshooting
3. State of
pattern
(Exclude
SDU type)
Pattern
stitch
feeding
amount
<Condition>
<SD, 2D>
Pattern selection dial: "16"
<3D>
Pattern selection dial: "17"
Stitch width lever: "5"
<Diagnosis>
Measure the maximum feeding amount
(A) during pattern stitch.
A = 2.8 ± 0.3
mm
Pattern shall not
be opened or
overlapped.
[Adjustment]
page.41
4. Stitch width
lever
(3D only)
Lever
position
<Condition>
Pattern selection dial: "4"
<Diagnosis>
Move the stitch width lever to left till the le-
ver is stopped.
Check the state of stitch after sewing a
fabric.
Stitches must
be straight.
[Adjustment]
page.29
Step Item Diagnosing Method Standard
Reference
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