JUKI LU-2810 Series - Page 19

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Adjustment procedures Results of Improper adjustment
1) Clearance of inner hook guide
1. Turn the handwheel in its normal rotational direction to bring
inner hook guide
1
to its back end position.
2. Turn inner hook
2
in the direction of the arrow until inner hook
stopper
B
is pressed against the groove in throat plate
3
.
3. Loosen setscrew
4
of the inner hook guide arm. Adjust the
clearance between the inner hook guide
1
and protruding por-
tion
C
of the bobbin case to dimension A.
4. Tighten setscrew
4
of the inner hook guide arm while pressing
down inner hook guide arm
5
.
2) Inner hook guide timing
1. Loosen setscrew
6
of the opener cam.
2. Three marker dots
A
on the handwheel
7
aligns with marker
line
B
on the motor cover
8
when inner hook guide
1
is in its
back end position.
* Tighten setscrew
6
of the opener cam in the state that the
opener cam
9
is pressed against the lower shaft gear
!0
.
When the clearance is larger than
the specied value :
o
Loose stitches or thread break-
age will result.
When the clearance is smaller than
the specied value :
o
Inner hook
2
or inner hook
guide
1
may be damaged.
海外講習会用121122LU-2810(-7)EM