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Assembly Procedure
Thread Tension Assembly
1. Mount the following items in the following order: @@ (the thread tension stud?), the thread tension disc A,
the thread tension disc B, the washer, the tension spring receptacle, the washer, and the spring.
2. Mount the thread tension adjusting screw on the thread tension stud aligning it to the thread tension cam
groove in the thread tension dial.
3. Set the thread tension dial to 9 and attach the thread tension dial shaft.
4. Align the notch spring against the oval hole and secure it with the screw (screw, pan M 3 × 4).
5. Attach the thread take-up spring in the second hole from the bottom of the thread take-up spring case so that
the thread guard side fits between two protrusions of the spring case.
6. Insert the positioning protrusion of the thread take-up spring case assembly into the square hole of the thread
conductor B, shift it all the way up in the square hole, and secure it with the one screw (screw, pan (S/P
washer) M 3 × 18DA).
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