1.5mm
2
1
1-36
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
7. SLIP CLUTCH
The slip clutch pressure is factory set and under normal conditions
will not need adjustment. The correct clutch torque setting is 0.43
Nm (60 to 65 inch ounces).
Hold the nut
1
and tighten the adjusting screws
2
with a torque
screwdriver. Apply an equal amount of pressure to both sides of the
clutch.
NOTE:
If a torque screwdriver is not available, tighten the lock
nuts so that the screws
2
extend through the nuts
1
1.5 mm.
CAUTION:
Too little torque will produce an improper material feed.
Too big torque may damage parts (bevel gears).
8. STITCH DENSITY
Adjust the feed connecting link position
3
in the cam follower slot
4
to
obtain the correct stitch density.
To increase the density you need to move in the direction arrow 1:
a) Loosen the hex socket screw
5
and move the link
3
away from the
bedplate, arrow direction 1, to increase density.
b) Tighten the hex socket screw
5
.
Maximum density is 12 stitches per 10 mm (30 stitches per inch), the
appearance is based accordingly the thread size.
To decrease the density you need to move in the direction arrow 2:
a) Loosen the hex socket screw
5
and move the link
3
toward the
bedplate, arrow direction 2, to decrease density.
b) Tighten the hex socket screw
5
.
Minimum density is 4 stitches per 10 mm (10 stitches per inch), the
appearance is based accordingly the thread size.
10. Setting the feeding timing:
Clamp plate movement occurs only when the needlepoint has risen above
the garment and must be completed before the needle descends into the
garment.
NOTE:
Bear in mind that the clamp plate movement need to start when
the needle bar is near to reach the top death point, in the way the pull up
of the thread from material is made firmly. This condition helps to obtain a
flat sewing, no puckering.
Anyway the clamp plate movement need to finish feeding in time before
the needle start to penetrate the material. The longer is the stitch the
earlier need to be set the start of the feeding to avoid the feeding finishes
with the needle just inside the material.
11. To check the adjustment use a piece of paper to see the needle punctures.
12. If the feeding occurs while the needle is in the work or in case it starts too early, loosen the screws
11
, on the feed
cam, and adjust its position so that the rule explained in point 10 is respected. Retighten the feed cam set screws.