Service manual

Released: 10/2013
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D - MACHINE ADJUSTMENT
9. SPREADERS ADJUSTMENT
9.1. The position of spreaders is controlled by stoppers
12
. The right spreader
10
needs to be adjusted to the edge
of the right looper
9
, the left spreader
11
with its groove to the opening of the left looper
6
. Loosen the screws to
change the set up with adjustments of stoppers
12
. The stoppers also dene the axial play of the spreaders; after
their adjustment, they must not hang.
9.2. Spreaders set up, to achieve correct operation of the left
12
and right looper
10
, is done after loosing the nut
17
and adjusting the tail
18
of the draw bar by turning it. Adjust the right looper so that it is in the home position at the
moment of being back in the bottom dead point. This is the key point for spreding of the left spreader. It is important
that the distance between the needle and the spreader is same for both spreaders.
WARNING!
Check the play between the right looper and spreader. It must be as small as possible:
Right - 0,05 mm at the most, so that sewing thread cannot slide in between the right loopet and spreader.
Left - 0,1 mm minimum, so that sewing thread cannot slide in between the left loopet and spreader.
Check the play between the needle
7
and the supporting steady
14
. Adjust the steady by bending it to the play of
0,05 mm. Once the stitching plate is tted in, check the play between the needle
7
and the stitching plate
16
.
According used thread
S-101.M
1-37