Pfaff 3568-12/22, Instruction Manual, Page: 89 / 142

Adjustment
13
.06.15
Bobbin case opener position
Requirement
1. The top edge of the bobbin opener should extend
0.8 mm
over the bobbin case.
2. When the bobbin opener
2
is in its point of reversal, the front edge of its finger must be
approx.
0.6 mm
behind the front edge of the bobbin case trip
6
.
3. At the left point of reversal of the bobbin case opener, the bobbin case position stop
must be positioned
at the center
of the slot in the bobbin case base.
5
1
3
2
0.6 mm
●
Loosen screw
1
.
●
Place the bobbin case opener
2
against the right side of the bobbin case base, press
against the clamp crank
3
underneath it and tighten screw
1
slightly.
●
Adjust bearing bush
4
(screw
5
) according to
requirements 1
and
2
.
●
Turn bobbin case opener
2
according to
requirement 3
and tighten screw
1
, making sure
that the bobbin case opener
2
is resting against clamp crank
3
.
Fig. 13 - 17
0.8 mm
4
13 - 18