Pfaff 481

18
13 Timing the bobbin case opener
Requirement
In needle bar position 1.8 mm past b.d.c. (cylindrical pin in hole “4”) bobbin case
opener finger must be at its right point of reversal.
● Adjust bobbin case opener eccentric 1 (screws 2) according to the requirement.
Adjustment aid:
To facilitate checking insert a screwdriver in the slot of bobbin case opener 3.
4
1
2
3