Hoover Shampoo- Polisher - Manual (Page 20)

Servicing of Double-Insulated
Appliances
This appliance is double insulated. In a double-insulated appliance, two
systems of insulation are provided instead of grounding. No grounding
means is provided on a double-insulated appliance, nor should a means for
grounding be added. Servicing a double-insulated appliance requires
extreme care and knowledge of the system, and should be done only by
qualified service personnel. Replacement parts must be identical to
those part being replaced. A double-insulated appliance is marked with
the words or “DOUBLE INSULATED”. The
symbol
q
may also be marked on the appliance.
Lubrication
The motor is equipped with two sleeve bearings. These bearings contain
sufficient lubrication for the life of the motor. The addition of lubricant could
cause damage. Therefore, do not add lubricant to either motor bearing.
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