Duerkopp Adler 650-16 Service Instructions Manual page 36

Adjusting the toothed belt
Figure 25: Toothed belt for hook drive - aligning the belt pulleys
3. Release the axle retainer on the lower belt pulleys (4) through the screw
4. Release the grub screw (6) on the large belt pulley (5).
5. Align the belt pulleys:
6. Tighten the grub screw (6) on the large belt pulley (5).
7. Tighten the axle retainer on the lower belt pulleys (4) through the screw
8. Replace the cover from the top right.
9. Tighten the fastening screws on the cover front and rear.
Order
After replacing a toothed belt or releasing the large pulley, you must al-
ways check the following settings:
• Hook position( Chap. 6.1 Adjusting the looping stroke position and
Service Instructions 650-16 Version 00.0 - Last Updated 09/2012
(1) - Toothed belt
(2) - Screw openings
(3) - Securing rings
(4) - Lower belt pulleys
openings (2).
• displace the lower belt pulleys (4) with their axles
• displace the large belt pulley (5) on the shaft
Displace the 3 pulleys so that:
the toothed belt is centred on the top belt pulley (7) and on the large
belt pulley (5).
the toothed belt on the lower belt pulleys (4) has a clearance of
1 mm each to the retaining rings (3).
openings (2).
hook spacing, p. 19)
(5) - Large belt pulley
(6) - Grub screws
(7) - Upper belt pulley
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