3.2
Needle feed
Rule:
1. The needle bar should be adjusted so that it is flush with the
presser foot bar.
2. The throat plate is to be set
2.1 with single needle machines, so that the axis of the needle
is displaced about
A = 0,1 mm
to the left of the stitch hole
center.
2.2 with twin needle machines, so that the needles are symmetrical
to the stitch hole centers.
3. The transport motion of the needle should be set as follows: at the
maximum stitch length the needle leaves the throat plate very near
the back edge of the stitch hole.
–
Loosen screws (1) and adjust the needle bar to the dimension
(B) = 31mm
as shown in the illustration. Rule 1 has been fulfilled.
–
Set the adjustment rings (2) and tighten the screws (1).
20
1
2
B
A
Содержание 887 Series
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