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10. TROUBLESHOOTING
Problem
Lower thread breaks at
the final stitch.
Double cutting during
thread trimming.
Cause
Fixed knife installation
position is too close to
needle hole.
Thread take-up amount
is too large.
Incorrect height or
tension of thread take-up
spring.
Check
Fixed knife position
Thread amount
Tension and height of
thread take-up spring
78
Remedy
Adjust the fixed knife
installation position to
the correct
Reduce the thread
amount.
Decrease the tension or
raise the height of the
thread take-up spring.
Page
44
29
BAS-705
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