<b><br>Fit Model: </b><br> <br>FOR iRobot Roomba 500 600 700 800 900 Series <br> <b><br>Cleaning the Roomba front caster wheel</b><br>. <br>1.Pull firmly on the front caster wheel to remove it from the robot.<br> 2.Spin the wheel by hand. If rotation is restricted, remove the wheel from its housing and remove debris from inside the wheel cavity.<br> 3.Push firmly to remove the axle and remove it completely from the wheel.<br> 4.Clear any debris or hair wrapped around the axle. And wipe the wheel clean.<br> 5.Re-install the axle, ensuring that both sides of the axle snap firmly in place.<br>6.Re-install the wheel into the housing. Finally reinstall the front caster wheel into the robot.<br> <b><br>Suggestion:</b><br> <br>We recommend that you clean iRobot Roomba Spare parts every 1-3 uses. (depending upon the amount of dirt and debris in your home). <br> <br>It's best to replace your spare parts every 3-6 months to keep your home robot operating at peak performance. <br> <b><br>Package includes:</b> <br> <br>2 packs x Front Caster Wheels<br> <b><br>Contact Us:</b><br> <br>I-clean is a Professional vacuum cleaner accessories vendors, not only have a Professional manufacturer, as well as a Professional team.<br> <br>Any problems, we will resolve for you within two business days.<br> <b><br>Kindly note:</b><br> <br>This is not an iRobot original product and is not covered under any iRobot warranty. The iRobot brand name and logo are the registered trademark of the respective owner. Any use of the iRobot brand name, model or part designation for this product is made solely for purposes of demonstrating compatibility.