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10.2) ADJUSTING UPPER THREAD HOLDER
10.2.1) Adjusting
Unfasten the base bolts of the upper thread holder base. Press with your hand the connecting lever of the motor
shaft and fix the base at a position where hook of the upper thread holder completely passes through the center
of the needle. Unscrew the bracket bolt so the bracket does not load the upper thread holder. Fasten the bracket
bolt where the upper thread holder operates smoothly.
10.2.2) Checking
After adjustment, check if the upper thread holder operates smoothly when the needle is changed, by changing
the color.
10.3) ADJUSTING LOW-NOISE PRESSER FOOT
10.3.1) Setting the low-noise presser foot
Unfasten all screws of the presser foot cam and drive lever (s). Turn the hand pulley to the maximum lower
position of the needle bar (180
°
). Turn the cam with the roller inserted to it. When the roller reaches a position,
where it aligns with the maximum eccentricity of the cam (roller is farthest from the arm in the picture), fasten
the screws tightly.
Bolt on the upper
thread holder base
Bolt on the upper thread holder base
Bolt on the upper thread holder bracket
Upper thread holder bracket
Upper thread holder
Connecting lever of
the motor shaft
Cam #1 screw
Drive lever(s)
Cam #2 screw
Roller
Cam
Screw
Drive lever(s)
cam
Roller
Arm
Summary of Contents for MAN-12
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