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Adjustment
13
Bobbin opener movement
.06.09
13 - 12
Requirement
With the needle bar at 1.8 past BDC (hole 4), bobbin opener 3 should be positioned in its
right point of reversal.
3
4
1
5
Fig. 13 - 11
Adjust eccentric 1 (screw 2) according to the requirement.
To provide a better indication of the movement of the bobbin opener, a
screwdriver can be inserted in the jam slot of bobbin opener 3.
6
3
2
3
1
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