−60 −
$2
$6
$7
™ Incorrect adjustment could
cause defective stitch or stitch
skip.
™ Too short length of remaining
needle thread could cause the
needle thread to pull out of
needle eye cause stitch skip at
the start of sewing.
™ Too long length of remaining
needle thread could produce
foul seam at the start of sewing.
1 Disc float timing
™ Make a provisional adjustment by
loosening screw #8 so that it is
situated at the center of eccentric
nut #9 adjusting range.
™ Loosen the screw $0 . Move the
thread tension release lever $1 so
that the tongue #6 just contacts the
thread tension disc #7 .
™ Remove the hinge screw $2 to confirm
that thread trimmer mechanism and
thread tension release mechanism
work smoothly.
™ Loosen the screw $6 , and move up
and down the thread tension
release hook $7 .
Loosen the nut. Make the adjustment of clearance between the
contactless switch and plate %00 by moving the contactless switch
$8 by loosening 2 nuts $9.
Confirm the LED’s OFF during operation and ON under the normal
state by actually cutting the thread several times.
™ Too large clearance disables the
running of motor.
™ Too short clearance enables the
running of motor due to the
defective return of thread
trimmer, which could be the
cause of the motor damage.
Adjustment Procedures Results of Improper Adjustment
From the library of: Diamond Needle Corp
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