Duerkopp Adler 650-16 Service Instructions Manual page 46

Checking the sewing foot lifting gear
Figure 33: Removing the lifting gear
(1) - Bearing points
(2) - Clamping screws
(3) - Clamping blocks
Removing the gearbox
Adjusting steps
1. Push the right sewing foot up for free access.
2. Release the screws (4) on the clamping blocks (3). Access is via the
3. Release the 8 fastening screws (5) on the step motors from the rear.
4. Pull off the step motors towards the rear.
5. Release the clamping screws (2).
6. Remove the electrical thread tensioner to be able to access the right
7. Release the bearing points (1).
8. Remove the gearbox.
Check the gearbox:
1. Move all joints on the gearbox:
Service Instructions 650-16 Version 00.0 - Last Updated 09/2012
machine head.
gearbox bearing point. There is no need to unplug the cable on the
thread tensioner to do so. ( Chap. 15.1 Fitting and removing the elec-
trical thread tensioner, p. 46)
Important: When pulling out the thread tensioner, make sure that you
do not damage the cable.
Access for the left gearbox is via the machine head. Access for the right
gearbox is possible via the opening for the removed thread tensioner.
All rotation and bearing points must move freely and must be free of
play.
(4) - Screws on clamping blocks
(5) - Motor fastening screws
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