40
8.6) Needle and Hook Timing
Set up the stitches at the minimum and put the needle
①
2mm above the lowest position, then the blade of hook
②
is in the middle of the needle(or 2/3 position
downward). The appropriate distance between the
needle groove and the hook edge
②
is 0.1mm. At this
time, the hook edge
②
should not contact the needle
①
.
If the above conditions are not met, perform the
following adjustments.
8.6.1) Adjustment of Needle and Hook Timing
1) Disassemble the needle plate.
2) Lean the machine backward. Loosen the lower
shaft collar fixing screw
①
and set the needle
position 2mm above the lowest position.
3) 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.
8.6.2) Clearance adjustment between needle
and hook
1) Loosen two hook base screws
④
and lower shaft
collar screw and adjust the space between the needle
①
and the hook blade
③
to 0.1mm by adjusting the
position of the hook base.
2) Adjust the position and tighten firmly each fixed
screw.
8.6.3) 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
when the needle bar is lifted 2mm from the lowest
point. (When the Needle Guide fixing screw
⑥
is
turned clockwise, the needle
①
gets away from the
needle guide
②
. Otherwise, the needle gets closer to
the needle guide).
2mm
①
0.1mm
①
②
[Fig. 8-8]
[Fig. 8-9]
[Fig. 8-10]
When needles are replaced. Check the distance between the needle and the hook.
Caution
①
③
④
⑥
0.1mm
②
Summary of Contents for KM-1170BLX
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