Pfaff 3811-15/65, Инструкция по эксплуатации, Страница: 115 / 138

Adjustment
115
13
.08.06
Test cut
Rule
1. The point of the thread catcher 2 should reliably capture the looper thread and the rear
part of the needle thread loop.
2. The thread must be undamaged with the cover plate 1 removed.
3. With the cover plate 1 removed, the thread catcher 2 must enter between the knife 3
and the thread clamping springs 5 , in doing so the threads must be fl awlessly cut and
clamped.

Place some material under the presser foot and sew a couple of stitches.

Remove the cover plate 1 .

Set the needle position shown in Chapter 13.06.04 thread catcher guard

Actuate the cutting cylinder by hand and in doing so check rule 1 and rule 2 .

If necessary readjust the thread catcher 2 .

Replace cover plate 1 .

Actuate the cutter cylinder once again and in doing so check rule 3 .

If necessary carefully turn screw 4 according to rule 3 (increase the cutter pressure).
Fig. 13 - 46
1
4
2
3
1
5