174
Lubricating the hook
CAUTION
Electronically driven components.
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
of the hook sleeve (marked in red) remains free of oil.
> 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
driver should be visible through the hole in the hook.
> Insert the hook.
– The hook is magnetic and therefore fastened to the correct position.
> Close the hook race cover and the fastening bracket until the release bracket engages.
035964.50.04_2014-08_Manual_B790_EN
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