Pfaff 939 U Adjustment Manual

Justierung
48
Fig. 1 - 43
2
1
5
4
3
● Position drive wheel 1 in accordance with requirement 1 and tighten screw 2.
● Place a bobbin onto the bobbin winder, thread the bobbin and engage the bobbin winder
● Move regulating pin 3 in accordance with requirement 2 and tighten screw 4.
1.05.42 Bobbin winder
Requirement
1. With the bobbin winder engaged the bobbin winder spindle must be turned reliably, but
friction wheel 5 must not touch drive wheel 1 when the bobbin winder is switched off.
2. The bobbin winder must disengage automatically when the thread is approx. 1 mm
from the edge of the bobbin.

Pfaff 939 U Specifications

General

Brand	Pfaff
Model	939 U
Category	Sewing Machine
Language	English