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37
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Adjustment Procedures
Results of Improper Adjustment
Adjustment Procedures
Results of Improper Adjustment
™
Loosen two screws
1
. Adjust the position of the automatic
reverse stitching magnet by moving it.
™
At the max. feed amountpress down the feed lever until the
plunger moves in the direction of the arrow (
a
). At this time,
the rubber cushion should turn while being applied with a little
load.
™
If the thread tension releasing
solenoid fails to be engaged with
the auxiliary pin of the thread
tension releaser, the tension disk
will not rise at the time of thread
trimming resulting in slip-off of
the thread.
™
If the thread tension releasing
solenoid fails to be engaged with
the roll pin, the return spring
lacks, or the solenoid fails to
smoothly return to its home
position, the tension disk will be
h e l d r a i s e d a f t e r t h r e a d
trimming.
1) If the thread tension releasing solenoid fails to move smoothly
when it is pressed in the direction
A
, loosen the four screws
and adjust the center of the solenoid.
2) If the tension disk fails to rise when the thread tension releasing
solenoid is pressed in the direction
A
, check first the position
of the thread tension controller, then remove the solenoid. Then
loosen the nut and adjust the position of the presser plate of
the thread tension releaser.
