19
C. Adjusting height of needle bar
Loosen the needle bar clamp screw
①
and move the bar to
make 1~1.5mm the clearance between the upper side of
needle hole and the hook edge. After that, be sure to fasten
the needle bar clamp screw.
[Figure 23]
[Figure 22]
11) Adjusting timing of needle and hook
A. Adjusting clearance between needle and edge of hook
Loosen the hook base clamp screw
①
and the lower shaft gear clamp screw
②
. And then, move hook base right or left to make
the clearance 0.05mm wide .
B. Adjusting ascending level of needle bar
Loosen the lower shaft gear clamp screw
②
and raise needle 2.4mm from the lowest point. When is done, move the gear right
and left to put the edge at the center.
①
①
①
0.05mm
Hook base clamp screw
Hook edge
Hook edge
2.4mm
1~1.5mm
