Pfaff 591 Sewing Machine User Manual


 
Adjustment
47
1.06 Adjusting the thread trimmer -900/83
1
.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
in 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.
Attach collar 8 (screw 9) to roller 10.
Fig. 1 - 38
3
4
7
0,3 mm
1
6 5
8
10
9