Hook, Needle Bar, Needle Guard, And Needle Guide; Setting The Loop Stroke - Dürkopp Adler 806N-111-10 Service Instructions Manual

4.4 Hook, needle bar, needle guard, and needle guide

4.4.1 Setting the loop stroke

Fig. 13: Setting the loop stroke (1)
(1) - Screw
(2) - Block
Proper setting
The loop stroke is the distance covered by the needle bar from its lower
dead center up to the point where the tip of the hook is in line with the mid-
dle of the needle. The 1st screw on the hook – as viewed in the direction
the hook rotation – is located on the flat of the hook shaft. When fixed in
place, the hook cannot rotate on the shaft during the sewing process. If the
hook is jammed, the safety clutch will react.
To set the loop stroke:
1. The setting of the rocker position must be correct ( p. 24).
 The loop stroke should amount to 2 mm when the machine in not in
2. Press the Lift/lower sewing head
 The sewing head lowers.
3. Press the O button.
 Threading mode is switched on.
4. Use the handwheel to turn the needle to the lower dead center.
34
WARNING
Risk of injury from sharp parts!
Puncture.
The machine must be set to Threading mode.
①
zigzag mode.
(3) - Gage
button.
Service Instructions 806N-111-10/806N-121-10 - 00.0 - 09/2023
Machine head 111
③
②