JUKI LK-1900A Series - Adjustment of the Hook Upper Spring Position; Shuttle Felt

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(31) Adjustment of the hook upper spring position
Standard Adjustment
For the right and left positions, the needle center is made to coincide with the center of the groove width
C
. For
the front and rear positions, the needle rear end is made to coincide with the corner part
A
.
(Caution) If Part
BB
BB
B
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 particu-
lar, the rear side should be handled with care.
A
B
C
B1815210000
(32) Shuttle felt
Standard Adjustment
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