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No.
!~~
m=m:&~~
Problem
Exam and Adjustment
2.
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8.
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The skipping stitch of needle thread
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The looper can't hook the right needle thread loop
and cause the right stitch of looper thread skipped.
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Because the needle thread loop is too small which
increase the thread take-up amount.
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The looper can't hook the left needle thread loop
and cause the left stitch of looper thread skipped.
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Because the needle thread loop is too big which
decrease the thread take-up amount.
1
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The looper can't hook the middle and left straight
needle thread loop which cause the middle and
left stitch of looper thread skipped.
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According to the standard to adjust the looper
thread connection between needle and looper and
make proper needle thread loop size.
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The looper can't hook the middle and right straight
needle thread loop and cause the middle and
right stitch skipped.
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1*.
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Check if the thread pass through the thread
gripper and the synchronization relationship
of thread controlling cam. If there is any
problem, adjust it according to the standard.
12.~jtWmjHic~:if'=
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The looper and needle didn
1
t cooperate well.
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Check the needle lever height and the
synchronization between needle and looper.
13.mjtW~jtJ=J~c~:if'=
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The needle and the needle guard plate didn
1
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cooperate well.
-3 7-
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