Bobbin Case Holder - Duerkopp Adler 69-373 Service Instructions Manual

6.2

Bobbin case holder

20
1
2
3
Caution: Danger of injury!
Turn off the main switch.
Set the bobbin case holder only when the sewing machine
is switched off.
Rule and control
The thickest thread that can be used should be able to move easily
through the slit between the bobbin case holder 2 and the groove of the
lower part of the bobbin case 3.
The gap must be approx. 1.5 mm.
The bobbin case holder 2 must still hold the lower part of the bobbin
case 3 safely against turning.
Adjustment
Aligning the bobbin case holder is only possible with a lower throat
plate 1 with a separate bobbin case holder 2.
The lower throat plate with cast lug is centered via the mounting
screws. An adjustment is not possible.
–
Align bobbin case holder 2 so that enough gap is present.
–
Polish all edges thoroughly before inserting a new bobbin case
holder.