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Bernette b79 - Troubleshooting Common Failures

Bernette b79
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Attachment
138
2019-02 EN 5020079.00A.04
Oiling the needle bar
If needle bar lacks of lubrication, needle bar might not move smoothly. If the machine is used often, the
needle bar should be oiled every 6 months to avoid it from blocking.
WARNING
Electronically driven components
Risk of injury near the needle bar.
> Switch the machine off and disconnect it from the power supply system.
> Remove the plug (1) and remove screw (2).
1
2
> Remove the face cover (3).
After removing the face cover be careful of the moving parts.
3
> Put one drop of oil on the needle bar movement mechanism, including needle bar crank rod/needle bar
bracket and needle bar supporter (add the oil on the area maked by arrow).
> Remove the presser foot.
> Turn the handwheel a few times and remove excess oil with a cloth.
> After oiling, the face cover must be remounted before reconnecting the machine.
Never reconnect the machine or make it run with the face cover removed.

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