Cutting Pressure Of The Knife Unit ( In Dismantled State ) - Pfaff 3119 Instruction Manual

Adjustment
13 Cutting pressure of the knife unit
.21
● Adjust knife cylinder 1 ( nut 2 ) according to requirement 1.
● To begin with, by turning screw 4 completely compress spring assembly 3, and then
13 - 19
Requirement
1. In its basic position ( retracted ), the knife cylinder 1 should have a length of 98.5 mm.
2. The knife 5 should cut perfectly, but the pressure on knife 5 should be as low as
possible.
56-007a
Fig. 13 - 17
wind screw 4 back by three turns ( requirement 2 ).
( in dismantled state )
5
4
3
2
1