DURKOPP ADLER 911-211, Service Instructions Manual

Page: 45 / 200

Machine head
Service Instructions 911-211 - 02.0 - 10/2016 44
4.5.1 Setting the lifting gap (standard hook bearing)
Order
Always check the width of the lifting gap after making changes to the nee-
dle thread size. The correct width of the lifting gap depends on the thick-
ness of the needle thread.
Proper setting
The needle thread slides through unobstructed between the nose of the
bobbin case and the middle section holder.
Cover
• Swivel up the machine head (

p. 15 )
Fig. 31: Setting the lifting gap (standard hook bearing)
To set the lifting gap:
1. Loosen the screw (2).
2. Push the cover (3) downwards.
3. Loosen the threaded pin (1).
4. Set the bobbin case lifter (4) such that the gap between the nose of
the bobbin case and the middle section holder is just big enough for
the needle thread to slip through without a problem.
5. Tighten the threaded pin (1).
6. Push the cover (3) upwards.
7. Tighten the screw (2).
WARNING
Risk of injury from moving parts!
Crushing possible.
Switch off the machine before setting the width of
the lifting gap.
(1) - Threaded pin
(2) - Screw
(3) - Cover
(4) - Bobbin case lifter
④
①
②
③