Adjustment Of The Shuttle Upper Spring And Lower Thread Holder Position; Shuttle Felt - JUKI AMS-221EN Series Engineer's Manual

(43) Adjustment of the shuttle upper spring and lower thread holder position

1. Shuttle upper spring
2. Lower thread holder
(Caution) If Part
B B B B B
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.

(44) Shuttle felt

• Two pieces of the shuttle felt
are not overloaded when the inner hook is set and turned along the shuttle race
• Shuttle packing
Standard Adjustment
: In regard to the right and left positioning, secure coincidence between the center
of the needle
join the needle rear end and the corner
: The amount of overlapping with the shuttle upper spring
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
and is damaged, this is the cause of thread breakage, hangnail of thread, stain
F F F F F
F
A
D
Standard Adjustment
are inserted in the holes of the shuttle race
has been inserted in the hole of the shuttle race
Shuttle
and that of the groove width C. For the front-rear positioning,
.
C
E
– 66 –
block.
A
should be adjusted
B
. Confirm that the shuttle felts
.
.