Adjustment Of The Bobbin Winder - Mitsubishi Electric PLK-G5050R Technical Manual

7-14. Adjustment of the bobbin winder

(1) Adjustment of the winding volume
Adjust the amount of the winding thread with the subsidiary arm (No.1).
The winding volume is adjusted 80% of the full volume when the sewing machine is shipped from the
factory.
(2) Adjustment of the proper position of the bobbin winder
Firstly, loosen the set screws (No.2) of the bobbin winder and put the empty bobbin (No.3) on the
rotating shaft (No.4) then, push the adjusting lever (No.5) to the arrow direction "a". Secondary, move
the whole bobbin winder to the arrow direction "b" and stop it at the position where the empty bobbin
is rotated then, tighten the set screws (No.2) of the bobbin winder. This is the proper position of the
bobbin winder.
<1>
<1>: subsidiary arm <2>: Set screw <3>: Bobbin
<4>: Rotating shaft <5>: Adjusting lever
<3>
<2>
a
b
<5>
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<4>
<2>