5.Proper operation
17
AZ8600SD
5.8 Adjusting stitch length
Each graduation on the machine pulley indicates
the length( ㎜ ) for one stitch.
After sewing, the actual stitch length has dif-
ference with the length on graduation. It depends
on the application, the type and weight of mate-
rial to be sewn or the differential ratio.
(1) Rotate the pulley while the pushing push but-
ton ① . At the point as far as it will go,
again push it securely.
(2) With keeping that, align desired graduation
of the pulley with the mark ② on the belt
cover.
(3) Release the push button ① .
● To shorten stitch length, turn the pulley in
the direction
“S”.
● To lengthen it, turn it in the direction
“L”.
Stitch length is adjustable in range of 2.0 - 5.0
mm.
Fig. 5-11
Fig. 5-12
Table 7 shows the number of stitches per inch
(25.4 mm) and 30 mm converted stitch length.
Table 7
①
②
Before adjusting, ALWAYS turn the motor switch OFF
and check that the motor has already stopped.
Check that push button is released completely and the
pulley rotates smoothly.
Stitch length
(㎜)
Number of
stitch
(per 1 inch)
(25.4 mm)
Number of
stitch
(per 30 mm)
2
12
15
3
8
10
4
6
7.5
5
5
6
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