With time and use the Drive Belts may become stretched, or worn to the point where the Cleaner starts operation erratically. It may move sporadically, or not climb the wall, or not clean the entire pool floor. This guide shows you how to locate and replace the Aquabot Classic Robotic Pool Cleaner Drive Belts. Note, the Drive Belts are different from the Drive Tracks. The Drive Tracks move the Cleaner along the pool floor, The Drive Belts are internal and connect the Drive Pulley off the motor shaft to the Wheel Tubes that drive the Drive Tracks.