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Adjustment Procedures Results of Improper Adjustment
Do not remove it unless it is necessary.
And, along with the change of knife assembly position, the tail
end of moving knife also moves to backward, when re-adjustment
of positioning is necessary to make both the units work in
conformity.
Refer to "(4) Checking and adjusting the receding position of the
moving knife."
[Removing]
1) Remove the throat plate.
2) Hold up moving knife connecting link 1 and remove moving
knife connecting link 1 from pin 2 of the moving knife.
3) Remove two setscrews 3 in the knife unit and remove the
knife unit.
[Installing]
Installing can be performed by reversing the above removing order.
However, when installing the knife unit, adjust the position of the
knife unit by adjusting the part of play of the screw hole by the
procedure below.
1) Move the moving knife connecting link knife unit to the direction
of face plate section (direction A b in the figure) as much as
the play at the installing hole and fix the unit.
2) When needle thread trimming failure occurs at the fixed position
of moving knife connecting link 1 at the time of thread trimming,
move the knife unit to the direction of handwheel (direction B
a in the figure) as much as the play and re-adjust it.
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