Shuttle-Drive Housing - Duerkopp Adler 743-221 Service Manual

2.7.2

Shuttle-drive housing

4
12
1
2
3
Regulation and inspection
The shuttle-drive housing 4 is factory-aligned.
It may only be altered in exceptional circumstances.
With the shuttle-drive housing correctly aligned there must be a
distance of 0.4 mm between the shuttle and the adjusting ring
(see section 2.7.1).
The distance between the slide-plate surface and the thread-drawing
plate 3 is 3.8 mm.
Caution: danger of injury
Turn off the main switch.
The shuttle-drive housing 4 may only be adjusted with the sewing
machine switched off.
Adjustment
–
Remove the shaping module and slide plate (see section 2.6).
–
Unscrew locking screw 5.
Beneath the locking screw there is a stop screw.
–
Adjust stop screw.
The distance between the slide-plate surface and the
thread-drawing plate 3 is 3.8 mm
The distance is checked with gauge 1.
–
Retighten locking screw 5.
–
Undo screws 2 of the shuttle-drive housing.
–
Move shuttle-drive housing 4.
There must be a distance of 0.4 mm between the shuttle and the
adjusting ring (see section 2.7.1).
–
Retighten screws 2 of the shuttle-drive housing.
5
–
Check the distance of the shuttle beak to the needle and adjust if
necessary (see section 2.7.1).