Singer 353 Genie Adjusters Problem Solving Sewing Machine Manual.
Adjusting the following:
* Bobbin case tension.
* Hook.
* Feed dog height.
* Presser foot pressure.
* Motor speed.
* Top tension.
* Shaft play.
* Check spring.
* Testing the upper tension.
15 page adjusters manual.
This manual has a great section on trouble shooting to solve your problem.
We also carry the full service manual here.
