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Adjustment
13
Re-adjusting the control cam
.06.09
13 - 40
Requirement
When the end of the hook plate 1 is positioned 2 mm behind the middle of the lug of the
bobbin case position finger, the distance between the tip of the thread catcher 6 and the
middle of the lug should also be 2 mm.
3
1
2
6
Fig. 13 - 38
Position the needle bar at b.d.c
Activate the engaging lever manually.
Turn the hand wheel until the distance between the end of hook plate 1 and the middle of
the lug of the bobbin case position finger 2 is 2 mm.
Turn control cam 3 (screws 4) in accordance with the requirement and bring it into
contact with fixing collar 5.
4
4
5
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