Bernina Sewing Machine Adjusters Manual.
Models: 840, 841, 842
Examples include:
* Bobbin hook.
* Feed dog height.
* Presser foot adjustment.
* Automatic buttonholer adjustment.
* Upper and lower thread tension.
* Fault avoidance.
* Much more!
27 page adjusters manual.
This is an adjusters manual.
If you need an instruction manual, please ask us.
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