Mitsubishi Electric PLK-J4040RH, Technical Manual

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5-5. Setting the bobbin
(1) Insert the bobbin (No.2) to the inner hook (No.1).
(2) Close the inner hook latch (No.3) and set the bobbin (No.2).
(3) Pull the bobbin thread (No.4) into the slit (No.5) and pass through the thread hole (No.6).
(4) Pull the bobbin thread (No.4) then, check with the bobbin (No.2) if it is rotated to the arrow direction. If
it is not, set the bobbin (No.2) into the inner hook (No.1) over again to get the proper rotation.
5-6. Setting the Inner hook
(1) Pull the bobbin thread about 30 mm out of the thread hole of the inner hook (No.1).
(2) Open the bobbin access door.
(3) Open the hook holding arm (No.2) in the arrow direction.
(4) By Inserting the top of inner hook (No.1) between the hook positioner (No.3) and hook (No.4), set the
inner hook (No.1) securely.
(5) Close the hook holding arm (No.2) for preventing come-off the inner hook (No.1).
<1>: Inner hook
<2>: Bobbin
<3>: Inner hook latch
<4>: Bobbin thread
<5>: Slit
<6>: Thread hole
<1>: Inner hook <2>: Hook holding arm <3>: Hook positioner <4>: Hook
<5>
<2>
<3>
<6>
<1>
<4>
<1>
<2>
30 mm
<3>
<4>
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com