Adjustment
12 - 25
49-13c
1
7
4
2
3
49-062
3
5
0,8 mm
49-13b
6
0,3 mm
3
Fig. 12 - 22
12
.05.22
Adjustment of the bobbin opener
Requirement
1. The distance between the finger of the bobbin opener
3
and the edge of the bobbin
case base
5
must be
0.8 mm
.
2. When the bobbin opener
3
is at its left point of reversal, the bobbin case base
5
should
be deflected by approx.
0.3 mm
by the retaining finger and screw
1
should be resting
on stop pin
7
.
●
Loosen screw
1
and loosen screw
2
so that the bobbin opener
3
is still held slightly.
●
Adjust bobbin opener
3
according to
requirement 1
.
●
Tighten screw
2
.
●
Adjust retaining collar
4
according to
requirement 2.
●
Tighten screw
1
.