Maytronics Dolphin BASIC 2 Instructions D'opération page 10

Insert the filters with the plastic backing
facing out.
Insert the cartridge unit.
5.4.2. Cleaning the impeller
Unplug the power supply.
If you notice debris trapped in the
impeller open the impeller and remove
the debris.
Place the impeller cover at an angle so that
the notch is on the second ring of the spring.
Press down on the impeller cover in the
direction of the spring, pushing it into place.
Replace the screws.
Robotic Pool Cleaner BASIC 2 | Operating Instructions
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