Adjustment
23
13
.05.08
Control cam
(pre-calibrating)
Rule
If the end of the thread guard
2
is
2 mm
behind the middle of the bobbin case position
finger
3
looking in the feeding direction, the clearance between the thread catcher tip
4
and the thread guard
2
should be approx.
4
mm
.
O
Move the needle bar to b.d.c. with the handwheel.
O
Activate the field core
1
manually.
O
Continue turning the handwheel (direction of rotation) until the end of the thread guard
2
is
2 mm
behind the middle of the bobbin case position finger
3
looking in the feeding
direction.
O
Check the
rule
and readjust the control cam accordingly if necessary, see chapter
13.05.01 Pre-calibrating control cam
.
Fig. 13 - 18
1
2
3
4
4 mm
2 mm
Summary of Contents for 333-712/02
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