Support answer · Care & Maintenance

How do I replace the tracks on my Dolphin robot?

From Maytronics support, updated 2026-07-19, rewritten for clarity. Parts that fix it are below.

The answer

What to know.

Click your robot model from the following list to see the video and instructions.

M400/M500/Aquarius XL

Tracks

  1. Unplug the power supply from the outlet
  2. Lower the handle and flip the robot over onto its backside
  3. Using a screwdriver, remove the back brush from its sockets
  4. Gently remove the brush without removing the tracks from their place
  5. Using your hands, pull the front bush out of the sockets
  6. Unscrew and remove all four side panel screws, and remove the side panel
  7. Remove the rubber track
  8. Unscrew and remove all four side panel screws, and remove the side panel on the other side
  9. Remove the rubber track
  10. Reposition the new tracks and reposition the side panels with the four screws on the side. Repeat on the other side.
  11. Install the brushes in the designated sockets
  12. Flip the robot back to its original position and straighten the handle

S50 (S50, E10, E20, Active 10, Cayman, Escape, Encore)

S50: tracks
E10/E20/Active 10/Cayman/Escape/Encore: tracks

Unplug the power supply from the outlet.

  1. Turn the robot upside-down.
  2. Remove the tracks from the robot.
  3. Reinstall the new tracks on each side.
  4. Rotate the brush to ensure that the tracks are correctly installed.

S100 (Advantage, Proteus DX3, Saturn, Echo, Nautilus CC, Active 15, Cayman, Escape, Explorer E20)

S100: tracks

Gray tracks

  1. Unplug the power supply from the outlet.
  2. Turn the robot upside-down.
  3. Remove the tracks from the robot.
  4. Reinstall the new tracks on each side.
  5. Rotate the brush to ensure that the tracks are correctly installed.

S200 (E30, Advantage Ultra, Active 20, Quantum, T35, Triton PS)

S200: the tracks
Gray tracks

  1. Unplug the power supply from the outlet.
  2. Turn the robot upside-down.
  3. Remove the tracks from the robot.
  4. Reinstall the new tracks on each side.
  5. Rotate the brush to ensure that the tracks are correctly installed.

S300/S400 (Proteus DX5i, Active 30, T35/T45, Premium 40, Explorer E30, Active 30i, T55i, E50, Active 50, Explorer E50)

S300: the tracks

Gray tracks

  1. Unplug the power supply from the outlet.
  2. Turn the robot upside-down.
  3. Remove the tracks from the robot.
  4. Reinstall the new tracks on each side.
  5. Rotate the brush to ensure that the tracks are correctly installed.

M550/M600/M700 (Active 60, E60i, Explorer E70)

The tracks

  1. Unplug the power supply from the outlet.
  2. Turn the robot upside-down.
  3. Remove the tracks from the robot.
  4. Reinstall the new tracks on each side.
  5. Rotate the brush to ensure that the tracks are correctly installed.

Liberty 200/300/400

The tracks

  1. Unplug the power supply from the outlet.
  2. Turn the robot upside-down.
  3. Remove the tracks from the robot.
  4. Reinstall the new tracks on each side.
  5. Rotate the brush to ensure that the tracks are correctly installed.

Liberty 600


The tracks

Nautilus CC Plus

The tracks

Premier

The tracks

Sigma/Nautilus CC Supreme

The tracks

If you wish to purchase replacement tracks for your robot, please visit our Dolphin Spare Parts & Accessories page or check with your local Dolphin dealer if they sell replacement tracks.

Source: Maytronics support. Rewritten for clarity with the same steps; the videos and illustrations are Maytronics' own.

Replacement parts

Parts that fix this.

This answer comes down to tracks & wheels. The exact part depends on the model: choose your robot and we open its parts list, or browse the category for every model.

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