SunStar SPS/D-BH6000-02

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G. Adjust the height of the cam lever for the upper thread holder
ⓐ Let the air out.
ⓑ Set the distance between the lower part① of the cam lever for the upper thread holder guide and the upper part② of
the thread holder lever at 0.5mm by loosening the adjusting screw③.
[ Fig. 35 ]
0.5mm
②
③