JUKI LU-2818-7 - Adjusting the Bobbin Case Opening Lever

– 29 –
LU-2810, LU-2810-7
1) Turn the handwheel in the normal direction of
rotation to bring bobbin case opening lever
❶
to
the closest position to inner hook
❷
.
2) Turn inner hook
❷
in the direction of the arrow
until stopper
❸
is pressed against the slits in
throat plate
❹
.
3) Loosen opener crank setscrew
❺
. Adjust the
clearance provided between the bobbin case
opening lever and protruding portion
A
of the
inner hook to 0.7 to 0.9 mm.
Tighten setscrew
❺
while pressing down bobbin
case opening lever crank
❻
.
LU-2860, LU-2860-7, LU-2818-7, LU-2868-7
1) Turn the handwheel in the normal direction of
rotation to bring bobbin case opening lever
❶
to
the closest position to inner hook
❷
.
2) Turn inner hook
❷
in the direction of the arrow
until stopper
❸
is pressed against the slits in
throat plate
❹
.
3) Loosen setscrews
❼
of the bobbin case open-
ing lever sleeve. Adjust the clearance provided
between the bobbin case opening lever and
protruding portion
A
of the inner hook to 0.9 to
1.1 mm for the LU-2860, -2860-7 and 2868-7, or
to 0.7 to 0.9 mm for the LU-2818-7.
Tighten setscrews
❼
while pressing bobbin
case opening lever
❶
downward and pressing
the bobbin case holding lever sleeve
❽
upward.
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 off and ascertaining that the motor is at rest.
❻
❺
❼
❽
❶
❹
❸
❷
A
LU-2810, 2810-7
LU-2860, 2860-7, 2818-7, 2868-7
LU-2810, 2810-7, 2818-7
0.7 to 0.9 mm
LU-2860, 2860-7, 2868-7
0.9 to 1.1 mm
4-7. Adjusting the bobbin case opening lever