DURKOPP ADLER 911-211, Инструкция по эксплуатации, Страница: 35 / 200

Machine head
Service Instructions 911-211 - 02.0 - 10/2016 34
To align the needle bar linkage:
1. Loosen both threaded pins (1).
2. Set the needle bar linkage (3) so that the needle enters the needle
hole (2) precisely in the center.
3. Tighten the threaded pins (1).
4.4 Position of the hook and needle
4.4.1 Setting the loop stroke position
Information
The loop stroke is the path length from the bottom dead center of the nee-
dle bar up to the height where the hook tip picks up the loop of thread.
Fig. 24: Setting the loop stroke position (1)
The loop stroke is precisely 2.4 mm.
WARNING
Risk of injury from sharp and moving parts!
Puncture or crushing possible.
Switch off the machine before you check and set
the loop stroke position.
(1) - Needle
(2) - Groove
(3) - Hook tip
① ③
②