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Adjustment procedures
Results of Improper adjustment
1. Move the suction cylinder
❶
to most advanced position. (If the air
is supplied, lock the solenoid valve hook manually in most ad-
vanced position.)
2. In this state, remove the shorter thread remaining unit (throat
plate upper (asm.)). Then remove two setscrews
❸
of the needle
hole guide B
❷
.
3. Loosen two setscrew
❺
of the suction pipe base and adjust the
position of the suction pipe
❹
so that the center of the needle
❽
may be located at the following positions towards the hole of the
suction pipe
❹
, as viewed from operator's side.
• Longitudinal position : Center of distribution (A=B)
• Lateral position : 1 mm from the right-hand edge of the hole of
the suction pipe
❹
.
4. When you cannot adjust it fully only in the adjustable range of
setscrew
❺
, loosen the xed nut
❻
of the cylinder knuckle
❼
and tighten the xed nut
❻
at the position which has been prop-
erly adjusted by making the cylinder knuckle
❼
move back and
forth.
5. After the adjustment, make sure that there is a clearance be-
tween the suction pipe
❹
and the counter knife that was attached
to lower surface of the throat plate or the needle hole guide B
❷
.
o
When the position of the suction
pipe
❹
is inappropriate, suction
of an end thread after operat-
ing the shorter thread remain-
ing knife worsens, and a short
thread remains in the lower part
of the hook.
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