HIGHLEAD GA2688-1, Инструкция по эксплуатации и перечень запасных частей

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ADJUSTING THE HEIGHT OF THE NEEDLE BAR (Fig.10)
When the needle bar is at its highest point, normally
the measurement between the highest point of the
needle plate and the needlepoint is 28 mm. When this
distance need to be adjusted, the steps is as follows:
(1) Take down the face plate, adjust the needle bar to
its highest position.
(2) Loosen the screw of needle bar connecting stud
screw.
(3) Adjust the needle bar to the right position.
(4) Tighten the screw.
Fig.10