Copyright - Necchi Supernova Instructions Manual

0,012'
Fig. 72
vital parts of the stitch mechanism) frequently and thoroughly,
and to remove all dirt, lint, and pieces of thread which may have
accumulated in the machine. Remove also any residues
(gummed oil) caused by the use of improper lubricant.
The same care must be applied to the raceway in the race body,
and to the race cover. They must be cleaned frequently and
thoroughly. It is also essential to keep free and clean the vertical
groove (channel) in the lower portion of the race body, which
serves to let any dirt, etc. escape.
A space of about 0,012" (Fig. 72) between the shuttle and shuttle
carrier spring No. 20194 is required for the passage of the
thread. Changes of the clearance between shuttle and shuttle
carrier spring may occur when:
The shuttle carrier spring No. 20194 is deformed (for instance, due
to jamming of the shuttle in the race body).
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Copyright -2004