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Adjustment procedures
Results of Improper adjustment
1. Loosen the Y feed arm
❹
setscrew
❶
.
2. Push the Y feed shaft
❸
in the direction of the arrow
A
⇒
.
3. Loosen the setscrews
❷
(3 pcs.) of the work feed acceptor plate.
Moving the Y feed arm
❹
in the direction of the arrow
➡
, x the Y feed shaft
❸
to the guide and also x the work
feed acceptor plate
❺
in the position where no torque is generat-
ed.
4. Let the end planes
A
of the Y feed shaft
❸
and the Y feed arm
❹
coincide with each other. Fix the Y feed arm
❹
setscrew
❶
.
o
The feeding load becomes too
much and this can be a cause of
feed error.
Adjustment procedures
Results of Improper adjustment
1. Loosen the two setscrews
❷
.
2. Make vertical adjustments of the feeder bar rear cover
❶
and
secure a clearance of about 1 mm toward the upper plane of the
work feed presser plate
❹
. Then, tighten the two setscrews
❷
.
3. Move the feeder bar
❺
in the direction of the arrow
A
and con-
rm that there is a clearance at the notch part of the sewing ma-
chine frame
❸
. If there is no clearance and there is interference
with the sewing machine frame
❸
, the steps of 1. to 2. above
should be repeated again.
(Caution) When tightening the setscrews
❷
, the feeder bar rear
cover
❶
may be moved vertically. Hold the feeder
bar rear cover
❶
rmly while the setscrews
❷
are
tightened.
o
If the clearance is too small
between the feeder bar rear
cover
❶
and the upper plane of
the work feed presser plate
❹
,
the feeder bar rear cover
❶
will
come in contact with the work
feed presser plate
❹
due to the
effect of vibration during sewing
operation. This will cause noise
and abrasion.
o
If there is no clearance between
the feeder bar rear cover
❶
and
the notch part of the sewing
machine frame
❸
, the feeder
bar rear cover
❶
will come in
contact with the sewing machine
frame
❸
, causing feed error
during sewing operation.
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