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10.2 Table of setting the machine according to the sewing category
Commercial designation of the machine
Sewing
Standard sewing parameters
category
Thickness Number Stitch
of one
of mate- length
material rial layers
layer
2 )
m m
m m
0,8
2
1,7
-100
2,2
1
2
2,5
-200
Setting as per chapter
Instructions for service
Instructions manual
Instructions for assembling
1) When sewing material of considerable overall thickness, it will be necessary to increase the overtopping of the teeth above
the needle plate and to increase also the needle thread tension.
2) The thickness of a layer is measured using an engineer slide calliper with the pressure of jaws of about 10 N.
3) The values of tension are only orientative ones and it is necessary to adapt especially the tension of the hook thread
according to the stiffness of the material. An excessive tension of the threads when sewing soft materials causes material
wrinkling.
4) When changing the tension of the hook thread, it is necessary to modify the tension of the retaining spring of the trimming
device according to the paragraph 4.8.
5) There are in use various types of feeders with the purpose of avoiding imprinting the teeth in the lining leather. Otherwise, it
is possible to use any feeder.
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4180i - 1XX - X
Label
Needle
Sewing
Position
number
size
speed
of feeding of needle
of thread
lever pin
P E S
0 , 0 1 m m S P M
70
80
2500
1
40
100
2500
1
3.5.3.1.2
6.5
2.4
4.5
Standard machine setting
1)
Width
Feeder
Presser
Presser
-
top roller
top roller
plate
pitch
diameter
position
insert
of teeth
hole
5)
m m
m m
m m
m m
1,2
0,4
35
10,5
1,5
0,4
35
10,5
3.3.2
3.5.3.2.2
3.6.6.1
3.6.6.2
30
Thread tension
3 )
needle
hook
thread
thread
4)
N
N
3
1
4,5
1,5
6.4
6.4
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