32
10) Adjustment of Needle and Hook
Timing
A. Disassemble the needle plate.
B. Lean the machine backward. Loosen the lower shaft
collar fixing screw
①
and set the needle position
2mm above the lowest position.
C. Turn the hook shaft to place the hook edge at the
center of the needle and tightly fasten the fixing
screw
①
for the lower shaft collar.
11) Clearance adjustment between
needle and hook
A. Unfasten the fixing screw of the hook base and
control the position of the hook base by turning the
adjusting collar
⑤
of the hook base to the left and
right, set the clearance between the hook tip
①
and
needle
③
at around 0.1mm.
B. After control the position tighten the fixing screw of
the hook base.
12) Adjustment of Hook Needle Guide
Position
The normal condition is that the distance between the
needle
①
and the needle guide
②
of the hook is
0.1~0.2mm when the needle bar is lifted 2mm from the
lowest point. (When the fixing screw
⑥
is turned
clockwise, the needle
①
gets away from the needle
guide. Otherwise, the needle gets closer to the needle
guide).
①
⑥
⑤
①
③
0.1mm
⑦
②
[Fig. 36]
[Fig. 37]
When needles are replaced. Check the distance between the needle and the hook.
Caution
