If you want your machine to stay happy, this is the most important maintenance procedure!
Clean and Oil the Hook and Race:
*(This procedure should be done after every 6-8 hours of sewing)*
|Bernina Oscillating Hook(for example: Aurora models 130 thru 170 & 220 thru 630)|
|Bernina Jumbo Bobbin Hook|
|Bernina Rotary Hook (For Example: Artista 200 & 730)|