Mitsubishi Electric PLK-J4040RH, Техническое руководство

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(5) Turn the hand pulley and stop it at the position where the needle bar lifted 4.5 mm from its lowest position.
(6) Turn the hook by hand and stop it at the position where the hook point (No.6) meets with the center line of
the needle (No.7).
(7) Loosen the three of the hook set screw (No.9) then, move the hook by hand and adjust the clearance
between the hook point and the needle to be about 0.05 mm.
(8) Hold the hook and tighten the three of hook set screws (No.9) securely.
<6>: Hook point
<7>: Needle
<9>
0.05mm
<6>
<6>
<7>
Detail of the hook point
<7>
4.5
mm
<9>: Hook set screw
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com