Adjusting The Thread Trimmer -900/81 - Pfaff 1571 Instruction Manual

Adjustment
12

Adjusting the thread trimmer -900/81

.07
12 Resting position of the roller lever / radial position of the control cam
.07.01
● Having made sure that piston 6 is positioned against the left stop, adjust magnet 1 (2
● Adjust control cam 3 (screws 4) in accordance with requirement 2.
12 - 43
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.
1
Fig. 12 - 39
screws) in accordance with requirement 1.
0,3 mm
7
6
5
4
3