11 | Vertical position of bobbin case opener |
Requirement
1.Small hook (481 and 483)
At the left point of reversal of bobbin case opener 3 the bobbin case opener finger must be roughly on one level with the lug of bobbin case base 4.
2.Large hook (481G and 483G)
At the left point of reversal of bobbin case opener 3 the top edge of the bobbin case opener finger must be 0.5 mm above the bottom edge of bobbin case cam 5.
4
3 
2
1
5
0,5 mm
3
●Turn bobbin case base 1 (screw 2) accoring to requirements 1 and 2.
16 PFAFF
