DURKOPP ADLER 969 Classic, Service Instructions Manual

Page: 47 / 122

Setting the feed dog
Service Instructions 969 - 06.0 - 03/2019 45
8.2.3 Setting the feed dog stroke movement
Order
First, check the following setting:
• Set the feed dog height at top dead center ( 
p. 44
)
Proper setting
The upper edge of the feed dog must be at the same height when the feed
dog is at front dead center (handwheel position
90° ) as when it is at the
rear dead center (handwheel position 270° ).
At 90° , the feed dog is in the upward movement; at 270° , in the downward
movement.
Cover
• right arm cover ( 
p. 15
)
Fig. 32: Setting the feed dog stroke movement
To set the feed dog stroke movement:
1. Loosen the threaded pins (1).
2. Move the handwheel into the
90° position.
3. Turn the stroke eccentric (2) such that the upper edge of the feed dog
is at the same height as the upper edge of the throat plate during the
upward movement.
4. Tighten the threaded pins (1).
5. Check if the feed dog is at the same height at
90° and 270° ; adjust if
necessary.
(1) - Threaded pins (2) - Stroke eccentric
①
②