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(44) Adjustment of the shuttle upper spring and lower thread holder position
1. Shuttle upper spring
: In regard to the right and left positioning, secure coincidence between the center
of the needle
and that of the groove width C. For the front-rear positioning,
join the needle rear end and the corner
A
block.
2. Lower thread holder
: The amount of overlapping with the shuttle upper spring
should be adjusted
so that the thread of Vinylon #8 can pass smoothly when it is pulled in the
direction of the arrow E. After the best positioning has been secured, fasten the
2 setscrews
.
(Caution) If Part
B
B
B
B
B
and
F
F
F
F
F
is damaged, this is the cause of thread breakage, hangnail of thread, stain
on thread, etc. Therefore, this part should be polished by the use of a buff or the like. In
particular, the rear side should be handled with care.
(45) Shuttle felt
• Two pieces of the shuttle felt
are inserted in the holes of the shuttle race
. Confirm that the shuttle felts
are not overloaded when the inner hook is set and turned along the shuttle race
.
• Shuttle packing
has been inserted in the hole of the shuttle race
.
Standard Adjustment
Standard Adjustment
A
B
F
E
C
D
Shuttle
