Application Description :
- Thread Tension Releaser
- Connected to presser foot lifter lever. As pushing the pedal, the thread tension nut is opened, and the needle thread is released.
BL
Thread Tension Releaser
| BL | picturew | Application | Parts List | |
|---|---|---|---|---|
| BL073 |  |
 |
UH (3-thread) |
 |
| BL074 |  |
UH (4-thread) |