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[Method of replacement]
1. Remove gauges of the needle, throat plate, feed dog, etc.
2. Loosen the knife thread guide setscrew small and the knife thread
guide setscrew large A .
(Cautions) Do not adjust the knife thread guide setscrew large B
.
[9000B-SS, B-DS, B-M ]
1. The clearance is 0.5mm between the knife thread guide and the
blade tip of the counter knife .
In this case, the distance is 4mm between the needle center and
the blade tip of the counter knife . (Rectangular mounting)
[9000B-SH]
1. The distance is 6mm between the needle center and the blade tip of
the counter knife . (Rectangular mounting)
Adjustment Procedure Results of Improper Adjustment
o If there is no coincidence of the
knife thread guide and the cen-
ter the needle, this can be a cause
of balloon stitches.
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