Pfaff 1571 - Machine Setup Procedures; Needle Insertion (Models 1571;1591); Needle Insertion (Model 1574)

Adjustment
40
15.06 Adjusting the thread trimmer -900/81
15
.06.01 Resting position of the roller lever / radial position of the control cam
Requirement
1. When the thread trimmer is in is resting position, lever 5 should be touching piston 6 and
the roller of roller lever 7 should be 0.3 mm away from control cam 3.
2. When the take-up lever is at t.d.c., control cam 3 should just have placed roller lever 7 i n
its resting position.
 Having made sure that piston 6 is positioned against the left stop, adjust magnet 1 (2 screws)
in accordance with requirement 1.
 Adjust control cam 3 (screws 4) in accordance with requirement 2.
Fig. 15 - 30
3
4
7
0,3 mm
1
65