iRobot Roomba 570 Service Manual - Page 61

CLEANING HEAD Module inspection and cleaning ƒ Check if main brushes are spinning by running the robot with the vacuum bin removed. ƒ Remove Brushes and clean them if dirty. ƒ Make sure both yellow main brush caps are installed correctly. ƒ If not, send replacement brush caps. ƒ Make sure the main brush and the flapper brush each have a yellow bearing installed correctly. ƒ If not, send replacement bearings. ƒ Check the square ends of both brushes. ƒ If the square end of either brush is rounded, check the corresponding square recess in the cleaning head module. • If the either brush is rounded, send replacement brushes. • If the either square recess is rounded, replace cleaning head module. ƒ If brushes still do not spin after cleaning, or if error alert persists, replace cleaning head module. BUMPER Module inspection and cleaning ƒ Gently tap both sides of bumper several times to shake out any debris that might be causing the bumper to stick. Try cleaning around bumper with compressed air, if available. ƒ If problem persists, replace robot. CLIFF SENSOR Module inspection and cleaning ƒ First determine that Roomba was not started on an uneven surface, or a dark surface that could have triggered a false cliff or a continuous false cliff. ƒ Turn the robot over and wipe all four cliff sensor windows with a clean, dry cloth. ƒ Verify that the side brush is spinning properly during runtime. • If not, troubleshoot the side brush module. The side brush could block the cliff sensors if it is stalled. ƒ If cliff sensor failures persist on flat surfaces with no cliff sensor obstructions present, replace robot. ƒ If Roomba is no longer able to avoid stairs, replace robot. 61