Necchi Supernova - Checking Zig-Zag Movement Timing

After having replaced this lever, check again the timing of the
movement of the feed dog (see section, “Timing of Feed Dog
and Needle Bar ").
Reassemble the feed lifting connecting rod No. A26345.
IMPORTANT ADJUSTMENTS TO BE MADE AFTER THE
REASSEMBLY OF THE UPPER GROUP OF THE
ZIG-ZAG MECHANISM
Check the timing of the zig-zag movement in relation to the
needle
bar (see chapter, " Timing of Zig-Zag Movement of Needle Bar ").
Center the needle in the hole of the needle plate, with the aid of
the rod " 7 " (Fig. 46) as follows:
Remove zig-zag mechanism cover plate No. 85621 and replace
it with gauge (10-4).
Set the machine for straight sewing in the center position
(Fig. 40), then bring the needle down through the hole in the
needle plate (use Zig-Zag Needle Plate).
Insert a screw driver through the opening in the zig-zag posi
tioning plate and loosen screw " 29 " of block " 27 " (Fig. 46).
Adjust the rod " 7 " (Fig. 46) with the aid of the needle bar
support " 4 " so that the needle is in the center of the needle
plate hole.
Tighten firmly screw " 29 ".
Check the distance between needle and shuttle (see chapter, "
Tim
ing of Shuttle and Needle Bar ").
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Copyright -2004