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24
4.4.2
Needle thread threading on 2-needle machines
2-needle machines are equipped with a 2
nd
triangle for the 2
Fig. 6: Needle thread threading on 2-needle machines
①
(1) - Tensioning screws in triangular
arrangement for the left needle
thread
To thread the needle thread in 2-needle machines:
1.
Thread the left needle thread as described above for a
1-needle machine ( p. 22).
2.
Insert the right needle thread from the rear to the front through
the thread guide.
3.
Guide the thread clockwise around the pre-tensioner of the
nd
2
tensioning screw triangle (2).
4.
Guide the thread counterclockwise around the additional
tensioner of the 2
5.
Guide the thread clockwise around the main tensioner of the
nd
2
tensioning screw triangle (2).
6.
Feed the needle thread from the right to the left through the
thread tension spring (7).
The remaining steps of the threading process are identical
to the threading process in 1-needle machines.
needle thread.
(2) - Tensioning screws in triangular
arrangement for the right needle
thread
nd
tensioning screw triangle (2).
Operating Instructions 827/827-M - 01.0 - 02/2019
Operation
nd
tensioning screw
②
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