Bernina Q 24 Manual page 36

Quilting frame assembly
> Push the ratchet wheel (M7) over the right-hand end of the backing rail so that the teeth are pointing
> Push both ends of the backing rail into the upper rail brackets of the rail supports.
> Align the backing rail centrally.
> Push the setting collar (M6) up close to the left-hand rail support. The setting collar must not, however,
> Tighten the pre-fitted grub screws so that the rail and setting collar are securely connected to one
> Push the ratchet wheel (M7) under the pawl as close as possible to the rail support. However, the ratchet
> Tighten the pre-fitted grub screws so that the rail and ratchet wheel are securely connected to one
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backward when viewed from the front of the quilting frame.
brush against the rail support.
another.
wheel must not brush against the rail support.
another.