9
3.5
Needle and
Thread
Figure 8
Selection of the proper needle
depends not only on the machine
model, but also on the material and
thread used. For selection of proper
needle and thread sizes to be used
on the various machine models
please refer to the table below.
Caution
The power
supply should
be cut off
before attach-
ing the needle.
3.6
Inserting
the Needle
Use needle Cat. No. 1910-05 needle
system (135x9) only.
Raise needle bar to its highest
position by turning handwheel
toward you.
Loosen needle set screw ‘1’ (see
Figure 8). Insert the needle in the
needle bar and push it up as far as it
will go.
Make sure its long groove faces
toward the front. Tighten needle set
screw ‘1’ securely.
Caution
Switch off the
machine.
Do not operate
the machine
without the
finger guard ‘2’
(see Figure 8)
1
2
* or an equivalent size of other types of thread
Table 4 - Needle and Thread
Model
Application
Light weight
materials
Medium weight
materials
Mid-heavy weight
materials
Max. thread size (Nm)-
Synthetic*
120 60 30
Needle size (1/100mm) 10 (60) 12 ~ 16 (80 ~ 100) 18 ~ 19 (110 ~ 120)
Needle catalog
(Needle system)
20U-105 / 105C / 125 / 125C
1910-05 (135x9)
Zigzag Sewing Machine
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