Adjustment
12 - 9
12.
04.07
Bobbin case opener stroke
Requirement
When the bobbin case opener presses the bobbin case to the furthest extent, the
projection of the bobbin case must protrude
0.3 - 0.5 mm
from the rear edge of the
needle plate recess.
●
Turn the handwheel until the bobbin case opener presses against the bobbin case to the
furthest extent.
●
Move the bobbin case base ( screw
1
, accessible from the rear of the post ) in
accordance with the
requirement
.
This setting can vary according to the thickness of the thread.
1
Fig. 12 - 07
0,3 - 0,5 mm
Содержание 3734-2/01
Страница 73: ...Adjustment 12 39 Fig 12 34 4 5 2 mm ...