−21 −
1) Adjusting the thread trimmer cam
Position of the direction of the main shaft : Adjust the clearance between the thread trimmer cam and the
main shaft thrust collar to clearance 0.5 mm.
Position of the direction of the rotation : Align the engraved point of the main shaft with the engraved line
of the thread trimmer cam.
2) Adjusting the thread trimmer link stopper screw
Make sure that thread trimmer roller 2 has a clearance against the both end faces of the slit of the thread
trimmer cam and smoothly enters the slit when pushing cam installing link 1 in the direction of arrow (⬅
) in the running section (in the range of A) of the thread trimmer cam.
Standard Adjustment
Main shaft thrust collar
Engraved line
Main shaft
Thread trimmer cam
Engraved point
Thread trimmer cam
Main shaft
(Clearance 0.5 mm)
Half rotation after contacting
Thread trimmer cam
Thread
trimmer cam
Slit of thread
trimmer cam
(5) Adjustment of the thread trimmer mechanism components
1
2
3
4
5
A
B
2
4
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