Brush Roll with Cap for Select BISSELL CrossWave Multi-Surface Cleaners. To remove the Brush Roll from machine, follow these instructions: Release the brush roll window by pressing button on window and rotate window towards you. Pull Brush Roll tab to remove. Place Brush Roll in brush holder on dock to dry. If Brush Roll is still dirty, it can be hand washed with mild detergent and place in Brush Roll holder on charging tray to dry. For best results, replace brush roll every 3 months. To replace Brush Roll back to machine, insert right side of Brush Roll first and rotate downward until tab on left side of brush is locked in place. Reinstall window by lining up tabs on bottom edges of foot and rotating towards machine. Press down until window clicks into place. Brush Roll with Cap for Select CrossWave 1640064