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MA_VEB100-7_A4_181015_en
3.2.2
Set the needle stroke in a way that at a loop stroke of 2.8 + 0.3 mm the left side
of the needle eye has a distance of approx. 1.5 +0.5 mm to the right hand edge
of the large looper finger, the point of the large looper finger being above
needle center (
Setting the needle stroke (Fig. 3 and Fig. 4)
To adjust remove headcover Release the screw (2) (Allan key size 4), ball bolt
(1) can be adjusted through the rear head side (remove the oval cover) by
means of a slotted screwdriver (Fig. 4). Insert the ball bolt in horizontal position
so that the slot of the
∅
6 bolt is placed vertically under the
∅
7 bolt.
Clockwise turning means a larger needle stroke, anticlockwise turning results in
a smaller needle stroke. The distance ball bolt to needle shaft is
2 ±0.5 mm. Readjust the needle lever as per “3.2.1 Mounting” after adjusting
the needle stroke.
Tighten screw (2) (Fig. 4). Check looper and needle movements through turning
the main shaft by means of the handwheel.
Fig. 4
