Adjustment
83
13.08.07 Control cam (recalibrating)
Rule
If the end of the thread guard 3 is positioned 2 mm behind the centre of the lug on the
bobbin case position finger 4, there should also be a clearance of 2 mm between the tip
of the thread catcher 6 and the centre of the lug.
Move the needle bar to b.d.c.
Manually press the roller lever 1 onto the control cam 2 and turn the handwheel until
there is a clearance of 2 mm between the end of the thread guard 3 and the middle of
the lug on the bobbin case position finger 4.
If required, turn the control cam 2 (screws 5) according to the rule.
1
2
5
2 mm
2 mm
6
3
4
Fig. 13 - 16