kansai FX/UTC Series, Инструкция по эксплуатации

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6-3 Adjusting the back spring
To cut the needle and looper threads, the movable
knife moves to the stationary knife with the needle
thread hooked on cutting edge A and the looper
thread hooked on cutting edge B while entering the
needle thread loop (see the illustration).
Then the looper thread is held by the stationary
knife and the back spring.
Position the back spring by referring to the
illustration and secure it with screws C.
6-4 Adjusting the stopper
Stopper C adjust the position to which the movable
knives protrude. With the needle bar at the top of
its stroke, press the center of movable knife base B
until the movable knives touch the stopper.
Loosen screws D. Adjust the movable knives so
that they touch the stopper when the distance from
bottom surface B of the movable knife base to
bottom surface A of the needle plate is 18~18.5mm.
Adjustment is made by loosening screws D.
< Note >
End E of the cylinder rod should tightly contact left
and right stoppers C. Be sure to turn off the air
when adjusting the stoppers.
< Note >
Adjust the back spring so that the back spring does
not hold the needle thread after it is cut.
5