Knife Pressure - Pfaff 1422-900/81 Service Manual

2

Knife pressure

.09
Requirement
When the front edge of thread catcher 3 has passed the cutting edge by half, knife 4 must
rest with light pressure on the edge of the catcher.
5
Fig. 2 - 05
Set take-up lever at b.d.c. and push roller lever 1 into control cam 2.
Turn balance wheel until front edge of catcher 3 has passed cutting edge of knife 4 by
half.
Re-position knife 4 (screws 5) according to Requirement.
3
4
After adjustment, check again according to Chapter 2.07
Adjustment
2
1
2 - 6