Lubricating The Hook - Bernina 720 User Manual

Attachment

Lubricating the hook

Electronically driven components.
CAUTION
Risk of injury near the needle and the hook.
> Switch the machine off and disconnect it from the power supply system.
> The bobbin case is removed.
> Push the release lever to the left.
> Flap down the fastening bracket along with the black hook race cover.
> Remove the hook.
> Fill as much BERNINA-oil into both oil depots so that the felts are damp and make sure that the surface
> Hold the hook at the pin in the center with two fingers.
> Lead the hook, lower edge ahead, angular top-down behind the hook race cover.
> Position the hook with the two lugs meeting the openings in the hook, the colored mark on the hook
> Insert the hook.
> Close the hook race cover and the fastening bracket until the release bracket engages.
150
of the hook sleeve (marked in red) remains free of oil.
driver should be visible through the hole in the hook.
– The hook is magnetic and therefore fastened to the correct position.
036045.50.04_2014-10_Manual_B720_EN