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1
Height and stroke of the bobbin case opener
.05.08
Requirement
1.
The top edges of the bobbin case opener
level.
2.
When the bobbin case opener
the catch of the bobbin case should be 0.3 - 0.5 mm from the back edge of the needle
plate recess.
1
2
Fig. 1 - 08
●
Adjust bobbin case opener
●
Turn the balance wheel until the bobbin case opener has defl ected the bobbin case
to its furthest point.
●
Adjust bobbin case opener
1 and bobbin case base 3 should be on one
1 has defl ected the bobbin case to its furthest point,
1
1 (screw 2) in accordance with requirement 1.
1 (screw 2) in accordance with requirement 2.
Adjustment
3
0,3 - 0,5 mm
15
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