Setting The Needle Bar Height - DURKOPP ADLER 911-211 Service Instructions Manual

Fig. 19: Setting the loop stroke position
(4) - Clamping ring
(5) - Setscrews
Setting steps
1. Lock the machine in place at position 1 ( p. 16).
2. Loosen all 4 setscrews (5) for the clamping ring (4) on the hook shaft.
3. Rotate the hook such that the hook tip (7) is precisely at the center of
4. Tighten the setscrews (5) for the clamping ring (4).
5. Remove the lock (
Sequence
Then check the following settings:
• Position of the needle guard
• Timing of cutting by the thread cutter ( 4.9.6 Setting the control cam

4.4.2 Setting the needle bar height

Sequence
First check the following settings:
• Loop stroke position ( 4.4.1 Setting the loop stroke position, p. 21)
• A straight and undamaged needle must be inserted
22
④
the needle (6).

( 4.4.4 Adjusting the needle guard, p. 25)
for the thread advancing device, p. 58)
WARNING
Risk of injury!
Risk of crushing injuries and stab wounds from
sharp and moving parts.
Switch off the machine before checking and setting
the needle bar height.
( Operating Instructions chapter, Inserting and replacing the needle)
⑤ ⑥
(6) - Center of the needle
(7) - Hook tip
p. 16).
Service Instructions 911-211 - 00.0 - 02/2015
Machine head
⑦