1
Adjusting the thread trimmer -900/81
.06
1
Resting position of roller lever/radial position of control cam
.06.01
Requirement
1. When the take-up lever is at t.d.c. (balance wheel position 60 °), control cam 1 should
just have moved roller lever 5 into its basic position.
2. When the thread trimmer is in its resting position, there should be a clearance of
0.1 mm between roller lever 5 and control cam 1.
Fig. 1 - 22
● Adjust control cam 1 (screws 2) in accordance with requirement 1.
● Adjust screw 3 (nut 4) in accordance with requirement 2.
Adjustment
4
5
3
0,1 mm
1
2
29