Timing The Bobbin Case Opener - Pfaff 481 Service Manual
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Also See for 481:
- Instruction manual (29 pages) ,
- Service manual (32 pages) ,
- Service manual (31 pages)
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13
Timing the bobbin case opener
● Adjust bobbin case opener eccentric 1 (screws 2) according to the requirement.
18
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.
1
Adjustment aid:
To facilitate checking insert a screwdriver in the slot of bobbin case opener 3.
2
3
4
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