Mitsubishi Electric PLK-J10050RH, Technical Manual

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6-3. Adjustment o
f the hook positioner’s position
(1) Remove the sliding plate.
(
2) Turn the inner hook by hand in the direction of arrow and contact to the “A” part of hook positioner.
(3) In this time, confirm if the
needle (No.3) is not contact with the “B” part of the inner hook opening
(No.4) shown on the figure.
(4) If the adjustment is necessary, loosen the hook positioner set screw (No.5) and adjust the hook
positioner (No.1) position.
(5) After the adjustment, 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 [6-2-3 (10)].
<1>: Hook positioner <2>: Inner hook <3>: Needle <4>: Inner hook opening
<5>: Hook positioner set screw
<3>
<2> <1>
<5>
A
B
<4>