1. 25/09/2019

How do I draw up the lower thread by hand? (For models equipped with the quick-set bobbin)

2. 07/05/2015

How do I install the bobbin wound with thread? (For models equipped with the quick-set bobbin)

3. 07/05/2015

How do I wind the bobbin? (For models equipped with the fast bobbin winding system)