Here are the most common things to check if you are encountering real or false thread breaks or quality issues when sewing:
Click on each of these topics for detailed instructions:
Check Thread Path
Check Bobbin Thread
Rotary Hook Support (Retaining Finger) Adjustment
Check Cutter Blade
Clean below the Needle Plate (How to Clear a Bird's Nest)
Identify and Clear a Thread Bind
Check Needle Case Calibration
If the EMT16's Cutter Blade has been damaged, purchase a new one here and follow these Installation Instructions.
If the EMT16's Hook Assembly has been damaged, purchase a new one here and follow these Installation Instructions.
If you only encounter problems when sewing on caps, review these helpful instructions: