DURKOPP ADLER 171 Operating Instructions Manual page 35

Operation
Operating Instructions 171/173 - 02.0 - 09/2019
Fig. 15: Setting the needle thread regulator
①
A
②
③
④
①
B
②
④
(1) - Screws
(2) - Needle thread regulator
(3) - Hole of the thread lever
Proper setting
Less elastic threads: The hole of the thread lever (3) is visible
in the thread lever's bottom position just above the lower bar of
the needle thread regulator (4) (A).
Very elastic threads: The hole of the thread lever (3) is visible in
the thread lever's bottom position just below the lower bar of the
needle thread regulator (4) (B).
To set the needle thread regulator:
1. Turn the handwheel until the thread lever reaches its lower
end position.
2. Loosen the screws (1).
3. Move the needle thread regulator (2) to the correct position.
4. Tighten the screws (1).
③
(4) - Lower bar of the needle thread
regulator
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