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2.6.6
Spring tension ofthe U -shaped spring
C aution:R isk ofinjury!
S w itch the m ain sw itch off.
C heck and adjustthe top feed only w ith the sew ing unitsw itched off.
S tandard and checking
The spring tension can be setindividually oron a fixed value.
C orrection w ith a fixed value
–
Loosen counternut2.
–
Turn screw 1 in such a w ay thatthere is a distance of4 m m
betw een the low eredge ofthe screw head and the counternut.
–
Tighten counternut2.
Individualcorrection
–
R em ove pressure spring 3.
–
M easure the spring tension w ith a spring balance.
–
Loosen counternut2.
–
Turn screw 1 correspondingly.
–
Tighten counternut2.
–
M ountpressure spring 3 again.
21
3
2
1
1
3
Содержание 1265-5
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