3022CS AUTOMATIC UNIT
49
19.7. DISTANCE BETWEEN LOOPER- NEEDLE
To place correctly the loop group respect to the needle, place the Needle Bar to the Lower Dead Center.
Loosen the two screws (A) (six-sided head) that fix the clamp to the shaft and check that the distance between the center
of the needle and the point of the looper is of 5mm. Fix the screws at the end of the operation.
Loosen the fixing screws of the loop (B) and those of the needle protector (C) and slightly rotate them towards left.
Rotate the wheel with the hand and take the point of the loop at the centre of the needle.
Check that the point of the loop touches the needle without deflecting the needle and then fix the screw (B).
Place the needle against the needle protector and slightly bend the needle, the distance between the point of the loop
and the needle is of 0,05mm.
The distances between the different mechanical parts can be distributed as represented in the picture below:
4,5mm
A
C
B
Needle under light bending
0,05mm
Needle
Summary of Contents for 3022 Series
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