JUKI AMS-210E Series Engineer's Manual page 71

Adjustment Procedures
1. Needle thread clamp notch R adjustment
1) Loosen the two set screws
2) Press the needle thread clamp link complete
the distance between the needle thread clamp
thread clamp base
Type.
Move the needle thread clamp notch R
thread clamp notch RH
toward the needle thread clamp cam plate
setscrews .
2. Needle thread clamp notch F adjustment
1) Loosen the two set screws
2) Press the needle thread clamp link complete
the distance between the needle thread clamp
thread clamp base
Type. Move the needle thread clamp notch F
needle thread clamp notch FH
it toward the needle thread clamp cam plate
setscrews .
.
becomes 21mm for S Type and 16.5mm for H
(S Type) or the needle
(H Type) in Direction D, lightly press it
.
becomes 23mm for S Type and 21mm for H
(H Type) in Direction E, lightly press
in Direction A so that
and the needle
, and tighten the two
in Direction C so that
and the needle
(S Type) or the
, and tighten the two
– 66 –
Results of Improper Adjustment
o If the distance is too long between
the needle thread clamp
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.
o If the distance is too long between
the needle thread clamp
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.
o Adjustments should conform to
the adjustment values according
to the needle thread clamp speci-
fications (S Type or H Type). Oth-
erwise, this can be a cause of fail-
ure in needle thread clamping op-
eration.
and
,
and
,