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98
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3-2. Adjusting the suction pipe for the shorter-thread remaining type thread trimmer
When the compressed air is supplied, suction cylin-
der
for shorter-thread remaining type thread trim-
mer moves backward. This is the initial position.
Unless cylinder
is in its recessed posi-
tion when the pneumatic air is supplied,
the piping connection is wrong.
Be aware that mechanical failures such
as needle breakage can occur, if sewing
is continued in this state.
Loosen screw
and adjust so that the center of
needle hole guide
is aligned with the center of
hole in suction pipe
when cylinder
reaches its
forward end.
Moves
forward
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