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Adjustment
17
1.06.11 Needle rise, hook-to-needle clearance, needle height and bobbin case position fi nger
Requirement
In stitch length setting "0" and in needle bar position 1.8 mm to d.c.p. (pin bore "4"),
1. the tip of the gripper should be at the middle of the needle and have a distance of
0.05 mm - 0.1 mm to the fi llet of the needle, and
2. the upper edge of the eye of the needle should be 0.8 mm under the tip of the gripper.
3. There should be a gap of 0.5 mm between the nose of the bobbin case stopper 4 and
the base of the stop groove.
● Adjust the gripper 1 (screws 2) according to rule 1.
● Move needle bar 3 (screws 4) without twisting according to rule 2.
● Slide the bobbin case stopper 5 ( screw 6 ) backwards to the stop
(see arrow) and align according to rule 3.
5
1
4
6
3
7
Fig. 1 - 11
4
3
0,5 mm
1
0,8 mm
2
6
5