Place your Dolphin Advantage Pool Cleaner upside down so you are able to reach the Bottom Lid Assembly (BLA). Delete sentence [At this point you should be seeing your Dolphin pool cleaner from that vantage point,] On either side of the unit you will see a yellow clip holding the bottom into place. Release these clips and carefully lift the BLA of the unit, and place it to the side.
At this point you should be able to see clearly down into the belly of the Dolphin Advantage Pool Cleaner, where the motor is housed. On each side of the cleaner housing there are 3 screws, (6 screws total) that will need to be removed to gain access to the side panel. For easier access you may want to remove the motor's protective
Before removing the track from the Dolphin Pool Cleaner you will first need to slide off the two Guide Wheels that maintain the track's position on the roller. After removing the guides, take a chance to inspect the wheels and to be sure they spin freely and are not cracked or damaged in any way. Replacement Guide Wheel, part#: 3295-454
Once the new track is in place and the pulley and guide wheels have been reinstalled, you may screw the side cover back into position. If you removed the motor to access tthe pool cleaner's inner screws, it would be best to save that until you have securely fastened the side panels to avoid any issues with space while trying to maneuver tools inside the unit.