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Maintenance
Motor
Please note that Riccar motors do not require lubrication. Each motor
contains two carbon brushes which will wear normally, and may eventu-
ally require replacement. For warranty purposes, this should be done by
an authorized service center. Brush life is affected by the number of hours
used, frequency of start-ups and shut-downs, humidity, altitude, and tem-
perature. In order to avoid damage to the motor itself, brushes should be
replaced before they are completely worn out. We therefore recommend
that you have your unit and motors inspected by a service center every
5-6 years.