■ Are the brushes free of debris and dirt?
▫ Are any foreign objects like rocks or trash caught in the bristles?
▫ Are the bristles free of excessive grime or grease?
▫ Do the brushes rotate smoothly without obstruction?
■ Are the bristles in good condition?
▫ Are there any frayed or broken bristles?
▫ Is the length of the bristles uniform across the brush?
▫ Are there any sections with missing bristles?
■ Is the brush alignment correct?
▫ Are brushes evenly positioned for uniform cleaning?
▫ Are they making proper contact with vehicles without excessive pressure?
▫ Are the mounting systems secure and aligned?
■ Are the brush motors functioning properly?
▫ Are there any unusual noises during operation?
▫ Are the motor casings clean and free of leaks?
▫ Are all connections secure and undamaged?
■ Is the brush cleaning system operational?
▫ Are the nozzles spraying water or cleaning agents effectively?
▫ Are the spray patterns evenly covering the brushes?
▫ Are any seals or hoses leaking?