Victoria arduino pumping register knob 07300786

What this control knob does

The Victoria Arduino pumping register knob 07300786 is the control component used to adjust the pump register on the machine, letting the operator fine-tune water flow and extraction pressure during brewing. It sits on the front or side of the espresso machine group and connects directly to the internal pump register mechanism.

Signs it needs replacing

Over time the knob can crack, loosen on its shaft, or become difficult to turn smoothly, making precise pressure adjustments harder to achieve. A worn or damaged knob may also spin freely without engaging the register properly, affecting consistency of the extraction.

Choosing the right part

Before ordering, check the compatibility table by the product to confirm this knob matches your specific Victoria Arduino model and register setup.

Compatible with

• E1-PRIMA
• ATHENA-LEVA (202203-)