5-4 Needle height
The point of the looper should be 0.5~1mm above
the top of the left needle's eye on the back side of the
needle when the point of the looper has reached the
center of the left needle with the machine pulley
turning in the operating direction (see 5-2).
To adjust the height of the needle,
1.
Set the needle bar at the top of its stroke.
2.
Remove the plug on the head cover.
3.
Loosen screw A.
4.
Move the needle bar up or down.
< Note >
After the above adjustment, check to make sure each
needle drops into the center of each needle hole.
5-5 Needle/looper front-to-back relationship
The point of the looper is 0.5~1mm above the top of
the left needle's eye on the back side of the needle
when it has reached the center of the left needle.
With the point of the looper at this position, set the
clearance between the left needle and the point of
the looper at approximately 0.2mm.
Then the looper should barely touch the right needle
(approximately 0.2mm).
To make the above adjustment,
1.
Loosen screw C (see 5-1).
2.
Move the looper holder front or back.
< Note >
When moving the looper holder front or back, be
careful not to change the looper setting distance.
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