JUKI LK-1941 Manuel D'utilisation page 51

Relation between needle and engraved lines
7
5
6
When DPx5 is used.
7
6
5
When DPx17 #26 is used.
Adjusting the clearance provided between the needle and the hook
(Perform this adjustment together with the aforementioned adjustment.)
0.03 to 0.1mm
Installing the inner hook stopper
2
Groove on
throat plate
Groove on inner hook
1) Turn the handwheel by hand in the direction of
7
5
6
When DPx17 #18 to
#25 is used.
3) Loosen setscrew 8 and move the hook to adjust
8
Turn the handwheel and loosen setscrew 8 to adjust
9
so that the clearance of 0.03 to 0.1 mm is provided
between the needle and blade point 9 of the hook
when the blade point of the hook is aligned with the
center of the needle.
8
1) Fit the projection at the top end of inner hook
A
1
2) There is a slight play between inner hook stopper
normal rotation. When needle bar 5has gone up,
adjust so that lower marker line 6 engraved on
the needle bar aligns with the bottom end of the
needle bar bushing 7, lower.
Turn the needle guard section of the
inner hook to the lower side so that
the inner hook does not come in
contact with the needle.
so that the blade point of the hook is aligned with
the center of the needle.
stopper 1 to the groove on the inner hook, and
install setscrews 2.
1 and setscrews 2 in the direction of arrow mark
A (lateral direction). Making the projection of inner
hook stopper 1 come in contact with the groove
on the throat plate, fix the inner hook stopper with
setscrews 2 so that the setscrews are positioned
approximately in the center of the play.
39