Adjusting Stitch Length - Yamato AZ7000SDR-8 Instruction Manual

5.8 Adjusting stitch length

Before adjusting, ALWAYS turn the motor switch OFF
and check that the motor has already stopped.
Each graduation on the machine pulley indicates the
length (㎜) for one stitch.
Actual stitch length may different from the length on
graduations. It may changes depending on the application,
type, weight of material or the differential ratio.
(1) Rotate the pulley while pressing the push button ①. At
the point that the push button can go in, press it again
strongly.
(2) Then align the desired graduation of the pulley with
the mark ② on the belt cover.
(3) Release the push button ①.
● To make stitch length smaller, turn the pulley in the
direction "S".
● To make stitch length greater, turn it in the direc-
tion "L".
Check that push button is released completely and the
pulley rotates smoothly.
The adjustable range of the stitch length is shown in Table
8.
Table 9 shows the number of stitches per inch (25.4 mm)
and 30 mm.
Fig. 5-11
②
Fig. 5-12
model
AZ7000SDR-8 class
AZ7500SDR-8 class
( except for below）
AZ7016SDR-8
Table 8
stitch length
（㎜）
1
2
3
4
Table 9
17
5. Proper operation
①
stitch length (㎜)
1～4
0.6～2
number of stitch
number of stitch
(per 1 inch)
（per 30㎜）
（25.4㎜）
25
12
8
6
AZ7000SDR-8, 7500SDR-8
30
15
10
7.5