MOTOR
Please note that the vacuum motor does not require lubrication. Each motor
contains two carbon brushes which will wear normally, and may eventually
require replacement. For warranty purposes, this should be done by an
authorized service center. Brush's life is affected by the number of hours used,
frequency of start-ups and shut-downs, humidity, altitude, and temperature. 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 years.
Maintenance
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