Dürkopp Adler 567 CLASSIC, Руководство по обслуживанию

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Position of the hook and needle
38 Service manual 567 classic - 01.0 - 10/2015
11.2 Setting the loop stroke position
The loop stroke is the path length from the lower dead center of the needle
bar up to the position where the hook tip is exactly on the vertical center
line of the groove for the needle.
Fig. 28: Loop stroke position - position of the hook tip
The loop stroke is precisely 2 mm.
Order
First check the following settings:
• Needle bar linkage (

10 Aligning the needle bar linkage , page 33)
• A straight and undamaged needle must be inserted
(

Operating manual section, Inserting and replacing the needle )
Correct setting
Machine is locked in place at position 1 (

page 16).

The hook tip (2) points exactly to the vertical center line (1) of the
needle.
Fault caused by an incorrect setting
• Missing stitches
Cover
• Tilt the upper section (

3.3.1 Access to the machine bottom section ,
page 10)
• Feed-dog (

3.3.7 Removing and installing the feed-dog , page 15)
WARNING
Risk of injury.
Risk of crushing injuries and stab wounds from mov-
ing and sharp parts.
Switch off the sewing machine before checking and
setting the loop stroke position.
2
1
(1) - Vertical center line of the needle
(2) - Hook tip