A
B
5
8
1-40
S-4001 ISBH+I SM 30°
Released: 09/2017
E-mail: [email protected]; webside: amfreece.com
Phone: +420 582 309 146; Fax: +420 582 360 606
E - STANDARD MACHINE ADJUSTMENT
9.3. First bar position adjustments
If the length of the buttonholes is not the same as show in the picture
5
, adjust the brake:
1. Loosen the nut
6
and turn the nut
7
clockwise to increase the
brake or counter-clockwise to reduce the brake. This adjustment
will provide a constant length of the buttonholes in the first bar.
NOTE:
If the spring tension on the brake is too strong, the stitch density
in the bar may be increased.
9.4. First bar shape adjustments
The timing of the exchange of the reverse of the feed is
adjustable by the length of the lever
9
adjustable by
loosen the nut
10
:
•
Loosen the nut and move the dog of the lever in the
A
direction to advance the timing the back gear move
toward the vertical gear (see the previous pages).
•
Loosen the nut and move the dog of the lever in the
B
direction to delay the timing the back gear move
toward the vertical gear (see the previous pages).
NOTE:
Anytime the length of the lever is adjusted, the
setting of the gear of the previous pages need to be
made again from a beginning.
To obtain the best adjustment of the shape of the first
bar try many times to sew without threading the needle
and observe the holes of the needle. The right adjustment
is represented in beside pictures
1
and
2
. The picture
3
shows a length of the lever too short; too advanced
adjustment. The picture
4
shows a length of the lever
too long; too delayed adjustment.
2. Turn the machine by handwheel until you reach the
first bar. Check a proper adjustment of the stop
8
.