−
72
−
Being used.
Spreader thread tension is too strong.
Stitch skip occurs before thread
breakage produced by needle heat.
Incorrect clearance adjustment,
incorrect returning amount adjustment
Incorrect contact amount, incorrect
height
Incorrect shape of pointed end of
looper disables scooping a loop.
Needle bend, incorrect needle
mounting direction, wrong needle
Being used.
Height is too low.
Height is too low.
Incorrect threading
Being used.
Too near to the left needle
Stitch skip occurs before thread
breakage produced by needle heat.
Incorrect clearance adjustment,
incorrect returning amount
Incorrect contact amount, incorrect
height
Do not use.
Reduce the tension.
Same described in page “Thread breakage by
needle heat”
Refer to standard adjustment.
Refer to standard adjustment.
Replace it with the genuine part.
Replace the needle with new one, Correct the
mounting direction, Use UY121GJS CS100, UY128
GBS FS300.
Do not use nipper.
Correct height position to appropriate height.
Refer to standard adjustment.
Refer to threading diagram.
Do not use.
Refer to standard adjustment.
Same described in page “Thread breakage by
needle heat”
Refer to standard adjustment.
Refer to standard adjustment.
Needle thread guard
Spreader
Needle heat
Looper adjustment
Needle guard, front and rear
Looper
Needle
Nipper
Intermediate thread guide
Needle height
Threading
Needle guard
Spreader
Needle heat
Looper adjustment
Needle guard, front and rear
Troubles(1)
Troubles(2)
Cause (1)
Cause (2)
Corrective measures
From the previous page
From the previous page
To the next page
Left
Right
Left
Right
Looper does not scoop the left
needle thread.
From
the
library
of:
Diamond
Needle
Corp
