Mitsubishi Electric PLK-J2516R-YU, Technical Manual

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6-
3. Adjustment of the hook positioner’s position
(1) Remove the sliding plate.
(2) Loosen the hook positioner set screw (No.4) and adjust the hook positioner (No.1) position to align the
right side of the projection (No.3) with the right side of the needle (No.2) as shown on the figure.
(3) After the adjustment, securely tighten the hook positioner set screw (No.4) and put the sliding plate
back on the sewing machine.
NOTE When put the sliding plate back on the sewing machine, in order for the needle to come into the
right center of the needle hole of the needle plate, make sure that the needle plate hole center matches
with the needle point. Refer to the previous paragraph [6-2(11)].
<1>: Hook positioner <2>: Needle <3>: Right side of hook positioner
<4>: Hook positioner set screw
<3>
<2>
<1>
<4>