Rug Doctor carpet cleaner makes a loud grinding or rattling noise from the brush area during operation.

Safety: Unplug the unit and lay it on its back to access the brush area.

• 1. Remove debris: Take off the bottom plate and remove any foreign objects (coins, screws, toys) from the brush housing.
• 2. Inspect belt: Check the brush drive belt for missing teeth, cracks, or glazing. Replace if worn or damaged.
• 3. Check brush bearings: Remove the brush cylinder and spin the end bearings by hand. If they feel rough or loose, replace the brush assembly.
• 4. Tighten end caps: Ensure the brush end caps are properly seated and secured.

Warning: Do not continue to run the machine with grinding noises; this can damage the motor and drive components.