6.1.2 Lifting course
Caution: Danger of Injury !
Switch off main switch.
Adjust lifting course only when sewing machine is switched off.
Standard checking
Lifting finger 4 must lift bobbin case 3 in such a way that the thread can
slip laterally between bobbin case lug 5 and the gap of the throat plate
without being hindered.
When bobbin case 3 is lifted, the distance x between holding lug 5 and
the gap of the throat plate must correspond to the thickness of the
sewing thread.
–
Sew some stitches manually.
–
Check distance x at the moment of the bobbin case lifting.
Correction
–
Loosen screws 1 and 2
–
Set the position of the finger accordingly.
–
Tighten screws 1 and 2 again.
6.1.3 Timing of the bobbin case opening
Standard checking
The bobbin case should be open at the instant that the thread passes
through between the bobbin case and its holder.
Caution Risk of Injury !
Turnthemainswitchoff!
Set the timing the bobbin c ase opening only with the sewing
machine turned off.
–
Loosen two screws 1.
–
Turn the handwheel .
After taking up the loop, the hook point should be in the “ 3 o’clock
position ”.
–
Turn shaft 2.
The finger should be at the forward reversing point.
The case is fully opened.
–
Tighten two screws 1 again.
25
GB
1
2
54
3
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