Alfa 8703 Manuel D'instructions page 76

Thread and Needle Chart
Type of fabric
Lightweight Organdy,
Georgette,
Lawn, Crepe
de chine,
Lining.
Mediumweight Cotton, Linen,
Satin, Ordinary
fabric.
Heavyweight Tweed,
Coating, Denim,
Doeskin,
Thick fabric.
Knits Knitted fabric.
* Refer to page 22 for adjusting the stitch length and differential feed ratio.
NOTE: Your overlock uses standard sewing needles (HA-1 SP, No.11, No.14).
74
Type of thread
Cotton: No. 80 – 100
Silk: No. 80 – 100
Synthetic: No. 80 – 100
Cotton: No. 60 – 100
Silk: No. 50 – 100
Synthetic: No. 60 – 100
Cotton: No. 50 – 60
Silk: No. 50 – 60
Synthetic: No. 50 – 60
Cotton: No. 60 – 80
Synthetic: No. 60 – 90
Woolly nylon (For looper
thread)
Woolly polyester (For
looper thread)
Needle
Stitch length
4
3
2
HA-1 SP
2.0 – 3.0
No. 11
HA-1 SP
2.5 – 3.5
No. 11 – 14
HA-1 SP
3.0 – 5.0
No. 14
HA-1 SP 2.5 – 4.0
No. 11 – 14
Differential
feed ratio
1.5
1.0
0.5 – 1.0
1.0
1.0
1.0 – 2.2