JUKI AMS-210EN Series, Engineer'S Manual

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(35) 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 ad-
justed 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 se-
cured, fasten the two set screws
.
(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.
(36) 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 .
– 57 –
Standard Adjustment
Standard Adjustment
B
F
E
C
D
Shuttle