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6-5 Installing the needle holder
Torque the needle holder into the needle bar to 20kgf･cm.
6-6 Relationship between the needles and needle plate
When the height of the needle bar is adjusted, check to see
if each needle is centered in its needle drop hole.
6-7 Needles/loopers front-to-back relationship
The looper passes behind the needle when it moves from
the extreme left end of its travel to the right.
When the point of the looper has reached the center of the
needle, the looper should be as close to the needle as
possible with no contact between the looper and the
needle. Adjustment is made by loosening screw K on the
looper holder. When the looper moves to the left from the
extreme right end of its travel while the needle is
descending to the back of the looper blade, check to see if
the needle touches slightly the back side of the looper.
If the needle is bent by the looper or there is a clearance
between the needle and the looper, adjust the amount of
looper front-to-back movement by referring to the below.
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