To clean the brush roll on a Shark cordless vacuum, you can follow these simple steps:Turn off and unplug the vacuum: Before you begin cleaning, make sure that your Shark cordless vacuum is turned off and unplugged from the power source. Reassemble the vacuum: Once the brush roll is clean and dry, reinsert it back into the vacuum and make sure it is securely in place. By following these simple steps, you can keep the brush roll on your Shark cordless vacuum clean and free from debris, helping to ensure optimal performance and prolonging the life of your vacuum. Check for blockages: If your Shark cordless vacuum is not working as well as it used to, check for blockages in the hose, brush roll, or other parts of the vacuum. By following these maintenance tips, you can keep your Shark cordless vacuum in top condition and ensure that it continues to work effectively for years to come.