DOLPHIN HAMMER SERIES SPARE PARTS

Loss of vertical traction indicates severe wear on the toothed drive tracks or the active front brush. When the rubber lugs lose their profile, the unit slips on the tile or liner when trying to climb.

To resolve the loss of traction, it is advisable to inspect these components:

• Drive tracks: Check whether the rubber has lost tension or has worn inner teeth.
• Roller bearings: Check that they turn smoothly and have no lateral play that could deflect the chassis.
• Cleaning brush: Make sure the bristles remain sufficiently elastic to generate effective friction.

Installing new tracks restores grip on vertical surfaces in less than fifteen minutes of mechanical work.

The lower rubber strips should be replaced when their contact edge is nicked or visibly thinner than the factory profile. These strips channel the suction flow toward the intake; if they sit more than two millimeters above the bottom, the robot loses its pulling power for heavy solids. Part number 9991732 supplies the set needed to renew the pool cleaner's lower base, restoring the essential hydraulic vacuum without modifying the motor block.

The choice between spring panels and ultrafine panels depends exclusively on the size of the particles clouding your water. Standard panels trap leaves, insects, and foliage without restricting the flow. By contrast, 50-micron panels capture Saharan dust, pollen, and suspended algae that pass through the open screens.

If you want to clarify the water thoroughly, combine the fine filtration kit with a preliminary check of the chemical parameters using a Scuba II Pool Photometer. This check prevents pH imbalances from prematurely clogging the screens with mineral deposits.

The turbine propeller is an external mechanical component attached to the shaft, while the motor block houses the electrical windings and transmissions in a sealed chamber. The propeller drives the vertical flow, holding the robot against the floor and expelling filtered water through the upper nozzle. If the propeller is damaged by impact with stones, the motor loses cooling and the robot stops moving within minutes of starting.

Premature stoppage is usually caused by a broken side drive belt rather than a power supply failure. When the internal belts lose tension or their teeth break, the processor detects excessive strain on the drive train and stops the cycle for safety.

Follow these steps to identify the cause of the stoppage:

• With the robot disconnected, turn the side pulleys by hand to check for seized bearings.
• Remove the transmission cover and inspect the timing belts for cracks or stretching.
• Connect the power supply to the electrical outlet and check that it provides a stable voltage without any indicator lights flickering.

In residential pools equipped with an Aqualarm Pool Alarm, always remember to remove the robot before performing dynamic checks with the power connected.

Bearings and guide pulleys should be replaced every two or three swimming seasons, equivalent to around 300 or 450 hours of underwater operation. Accumulated chlorine and sand particles wear down the polymer bushings, increasing the axial play of the main rollers. Replacing mechanical wear parts on time protects the drive sprocket from costly mechanical overload.

The Dolphin Serie Hammer chassis features a modular design assembled with standard stainless steel screws, accessible with a simple Phillips screwdriver. Removing the side panels, taking out the front roller support, or replacing the filter basket requires neither specialized workbenches nor press-fitting tools. Simply remove the perimeter fasteners, clean off any accumulated limescale, and position the new original replacement part, aligning the fitting guides.