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Adjustment
12
Adjusting the thread trimmer –900/81
.05
12
Resting position of the roller lever / radial position of the control cam
.05.01
12 - 21
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 - 19
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.
0,3 mm
7
6
5
4
3
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