– 8 –
4-5. Presser foot pressure
C
D
A
B
1. Adjusting the presser foot pressure
1) Loosen locknut
A
of the presser spring regula-
tor.
2) Adjust the presser foot pressure by turning
presser spring regulator
B
.
The presser foot pressure should be minimized
as long as the material does not slip under the
presser foot.
3) Tighten locknut
A
of the presser spring regula-
tor.
2. Adjusting the feeding pressure
1) Loosen feed pressure adjustment screw lock-
nut
C
with a spanner.
2) Adjust the feed pressure by turning feed pres-
sure adjustment screw
D
.
3) Tighten feed pressure adjustment screw lock-
nut
C
with a spanner.
1. Adjusting the feed dog height
Adjust the height of feed dog
❶
so that it is 1.0
mm higher that the top surface of throat plate
❷
.
Adjust the feed dog height as described below.
1) Loosen screw
❹
of feed lifting rock arm
❸
.
Move feed bar
❺
up and down.
2) After the completion of adjustment, tighten
screw
❹
.
2. Adjusting inclination of the feed dog
1) Loosen screw
❻
of the feed rocking arm.
2) Turn eccentric shaft
❼
to change inclination of
the feed dog.
3) After the completion of adjustment, tighten
screw
❻
of the feed rocking arm.
❶
❷
❸
❺
❻
❹
❼
Front
Clockwise
Counterclockwise
1.0 to 1.2 mm
Front
Front
Rear
Rear
Rear
4-6. Adjusting the feed dog
The feed dog height may change after
the adjustment of inclination of the
feed dog. It is therefore necessary to
check the feed dog height again.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power o and ascertaining that the motor is at rest.
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