■
Adjusting the amount of oil (oil spots) in the hook
1) Turning the oil amount adjustment screw attached
on the hook driving shaft front bushing in the “+”
direction (in direction
A
) will increase the amount
of oil (oil spots) in the hook, or in the “–” direction
(in direction
B
) will decrease it.
2) After the amount of oil in the hook has been
properly adjusted with the oil amount adjustment
screw, make the sewing machine run idle for ap-
proximately 30 seconds to check the amount of
oil in the hook.
A needle of DBx1 should be used. Select a proper
needle size according to the count of thread and the
type of material used.
1) Turn the handwheel until the needle bar reaches
the highest point of its stroke.
2) Loosen screw
2
, and hold needle
1
with its in-
dented part
A
facing exactly to the right in direc-
tion
B
.
3) Insert the needle fully into the hole in the needle
bar in the direction of the arrow until the end of
hole is reached.
4) Securely tighten screw
2
.
5) Check that long groove
C
of the needle is facing
exactly to the left in direction
D
.
8. ATTACHING THE NEEDLE
9. SETTING THE BOBBIN INTO THE BOBBIN CASE
1) Install the bobbin in the bobbin case so that the
thread wound direction is counterclockwise.
2) Pass the thread through thread slit
A
, and pull
the thread in direction
C
.
By so doing, the thread will pass under the ten-
sion spring and come out from notch
B
.
3) Check that the bobbin rotates in the direction of
the arrow when thread is pulled.
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the
machine and check to be sure that the motor has totally stopped rotating in prior.
A
B
1
2
D
B
C
A
B
C
A