JUKI AMS-210EN Series, Руководство инженера

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1. Needle thread clamp notch R adjustment
1) Loosen the two set screws .
2) Push the needle thread clamp link complete in Direction A so that
the distance between the needle thread clamp device and the
needle thread clamp base becomes 17.5mm (common to S and H
type). Move the needle thread clamp notch RH in direction D,
lightly press it toward the needle thread clamp cam plate . and
tighten the two setscrews .
2. Needle thread clamp notch F adjustment
1) Loosen the two set screws .
2) Push the needle thread clamp link complete in Direction C so that
the distance between the needle thread clamp device and the
needle thread clamp base becomes 22mm (common to S and H
type). Move the needle thread clamp notch FH in Direction E,
lightly press it toward the needle thread clamp cam plate , and
tighten the two setscrews .
o If the distance is too long between
the needle thread clamp and
the needle thread clamp base ,
the needle thread release timing
becomes earlier and this can be
a cause of unthreading at the
beginning of sewing.
o If the distance is too short be-
tween the needle thread clamp
and the needle thread clamp base
, the needle thread release tim-
ing is delayed and this can be a
cause of needle thread end re-
maining on the rear side of the
material.
When the needle thread clamp notch
is adjusted improperly
o The notch position cannot stay in
the standard range even after the
adjustment of the needle thread
clamp sensor according to “(41)
Adjusting the needle thread clamp
sensor”.
o If the distance is too long between
the needle thread clamp and
the needle thread clamp base ,
the needle thread release timing
becomes earlier and this can be
a cause of needle thread end re-
maining on the rear side of the
material or jamming of needle
thread into the needle thread
clamp
.
o If the distance is too short be-
tween the needle thread clamp
and the needle thread clamp base
, the needle thread clamp tim-
ing is delayed and this can be a
cause of failure in needle thread
clamping.
When the needle thread clamp notch
is adjusted improperly
o The notch position cannot stay in
the standard range even after the
adjustment of the needle thread
clamp sensor according to “(41)
Adjusting the needle thread clamp
sensor”.
– 64 –
Adjustment Procedures Results of Improper Adjustment