Alfa Network A1930 - Setting the Bobbin into the Bobbin Case; Adjusting the Stitch Length; Presser Foot Pressure; Hand Lifter

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9. SETTING THE BOBBIN INTO THE BOBBIN CASE
1) Pass the thread through thread slit A, and pull the thread direction B.
By so doing, the thread will pass under the tension spring and come
out from notch.
2) Check that the bobbin rotates in the direction of the arrow when
thread C is pulled.
10. ADJUSTING THE STITCH LENGTH
1) Adjust + needle widening 1.
2) Adjustment - smaller pitch 2.
11. PRESSER FOOT PRESSURE
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1) Loosen nut 2. turn presser spring regulator 1 clockwise
(in direction A), the presser foot pressure will increase.
2) Turn the presser spring regulator 1 counterclockwise
(in direction B), the pressure will decrease.
3) After adjustment, tighten nut 2.
4) For general fabrics, the standard height of the presser
spring regulator is 29 to 32 mm.
12. HAND LIFTER
1) Turn the presser foot 1 in direction A to lift the presser
foot.
2) Presser foot will go back to its original position when
the lifter is turned down direction B.