Setting The Cutting Depth Of The Rear Top Knife In Relation To The Hook Knife; Settng The Cutting Depth Of The Front Top Knife; Setting The Trimming Margin - Pfaff 3822-1/22 Instruction Manual

50.8.4

Setting the cutting depth of the rear top knife in relation to the hook knife

Requirement:
.1 Switch on trimming mechanism (key
.2 Switch on hook knife (key
.3 Set top knife in cutting position; see also chapter 57.1).
.4 Set hook knife at cutting position (knee switch 4, Fig. 18).
.5 Set top knife height, eccentric 16, screw 17 (Fig. 19).
50.9 Setting the cutting depth of the front top knife
Requirement:
.1 Fit front top knife 9 (Fig. 20, screws 18).
.2 Switch on trimming mechanism (key
.3 Set top knives in highest position (balance wheel).
.4 Engage hook knife 20 (knee switch 4, Fig. 18)
.5 Adjust knife height (front top knife 9) according to requirement (screws 18, FIg. 21).
50.10

Setting the trimming margin

Requirement:
Sew a sample seam and check the trimming margin.
Correction:
58 PFAFF
In its lowest position, rear top knife 7 must cross hook knife by 0.5 mm
(Fig.16).
, LED on)
Front top knife 9 (Fig. 21) must make two thirds of its cutting stroke before
rear top knife 7 begins to cut.
The trimming margin must be set at 3.5 mm
On the two screws 25 (Fig. 21)
Caution, do not change cutting angle!
7
20
16
KAP56-13
, LED on, Fig. 17).
LED on, Fig. 17).
0,5mm