Thread Check Spring And Thread Regulator - Pfaff 3108-1/1306 Instruction Manual

Adjustment
13

Thread check spring and thread regulator

.05.10
● Position rest 1 (screw 2) in accordance with requirement 1.
● Turn sleeve 4 (screw 2) to adjust the tension of thread check spring 3.
● Position thread regulator 5 (screw 6) in accordance with requirement 2.
66
Requirement
1. The movement of thread regulator 3 must be completed when the needle point enters
the material.
2. When the thread loop is at its largest while being passed around the hook, the check
thread spring 3 should rise slightly from the rest 1.
Fig. 13 - 10
For technical reasons it may be necessary to deviate from the indicated spring
stroke or spring tension.
Move thread regulator 5 (screw 6) towards ("+") (= more thread) or ("-") (= less
thread).
3 1
6
5
4
2