Shuttle alignment and assembly

If you're really not supposed to take it apart then why does the manual give step by step directions on how to do so? Is that so we will HAVE to take it to an authorized tech and spend a not so inexpensive amount to fix something the manual showed us how to do?? Not nice!!!! If you're really not supposed to take it apart then why does the manual give step by step directions on how to do so? Is that so we will HAVE to take it to an authorized tech and spend a not so inexpensive amount to fix something the manual showed us how to do?? Not nice!!!!

Hi - the answer above was specifically for a Pfaff 7570 machine and does not apply to all machines. The Pfaff 7570 manual does NOT show how to take apart the race system, only removing the bobbin case from the machine and adjusting the bobbin tension. Unscrewing other parts of the Pfaff 7570 system CAN result in a huge mess and a ruined machine - much better to take it to someone who has the proper tools to correctly calibrate all the necessary parts.
However, if you are looking for a solution for a different machine, perhaps I can assist with some guidance there.
For instance, if you've run over a needle and the machine is jammed (can't turn the handwheel to move the needle up/down), it may be something simple or something extensive.
1. You may have knocked the machine out of timing. Some mechanical machines can be retimed by the user, some cannot.
2. The handwheel not turning can also be the result of a broken gear/cam, something that can't be repaired by the user.
3. Or it can even be something as simple as a piece of thread stuck between the outer & inner parts (race) of the bobbin area. A jammed thread can usually be removed by turning the handwheel backwards. Adding extra oil to the hook can aid in removing any stuck threads... you'll need to - obviously - remove the excess oil once you've gotten the thread dislodged.
If none of these suggestions help, please don't hesitate to comment again with specific details about your machine/problem.
Most sewing machine repair techs will look at your machine for free... some will even fix MINOR issues at no charge. This depends on the individual dealer - you'll just need to call some in your area to find what they charge. Hi - the answer above was specifically for a Pfaff 7570 machine and does not apply to all machines. The Pfaff 7570 manual does NOT show how to take apart the race system, only removing the bobbin case from the machine and adjusting the bobbin tension. Unscrewing other parts of the Pfaff 7570 system CAN result in a huge mess and a ruined machine - much better to take it to someone who has the proper tools to correctly calibrate all the necessary parts.
However, if you are looking for a solution for a different machine, perhaps I can assist with some guidance there.
For instance, if you've run over a needle and the machine is jammed (can't turn the handwheel to move the needle up/down), it may be something simple or something extensive.
1. You may have knocked the machine out of timing. Some mechanical machines can be retimed by the user, some cannot.
2. The handwheel not turning can also be the result of a broken gear/cam, something that can't be repaired by the user.
3. Or it can even be something as simple as a piece of thread stuck between the outer & inner parts (race) of the bobbin area. A jammed thread can usually be removed by turning the handwheel backwards. Adding extra oil to the hook can aid in removing any stuck threads... you'll need to - obviously - remove the excess oil once you've gotten the thread dislodged.
If none of these suggestions help, please don't hesitate to comment again with specific details about your machine/problem.
Most sewing machine repair techs will look at your machine for free... some will even fix MINOR issues at no charge. This depends on the individual dealer - you'll just need to call some in your area to find what they charge.