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1
Adjusting the thread trimmer -900/81
.07
1
Resting position of the roller lever / radial position of the control cam
.07 .01
Requirement
1. When the thread trimmer attachment is at rest lever 7 should fi t closely to plunger 5
and the roller on roller lever 4 should be 0.3mm away from control cam 1.
2. When thread lever at t.d.c. (handwheel position 53°) the control cam 1 should have
just bought roller lever 4 to rest.
Fig. 1 - 33
● Create a distance of 50 mm between the highest point of control cam 1 (screws 2) and
collar 3.
● Move collar 4 into contact along control curve 1 and tighten screws 5.
● Turn the handwheel in the direction of rotation until the highest point of control cam 1 is
opposite roller 6.
● Ensure that plunger 7 is at the leftmost position, move magnet 8 (two screws) according
to requirement 1.
● Turn control cam 1 (screws 2) according to requirement 2.
3
6
0,3 mm
50 mm
7
8
5
1
2
9
Adjustment
4
41
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