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11-600205211REVA
IMPORTANT SAFETY INSTRUCTIONS
This machine is only suitable for commercial use, for example in hotels, schools, hospitals, factories, shops,
and offices other than normal residential housekeeping purposes.
When using any electrical appliance, basic precautions should always be followed, including the following:
NOTE: Read all instructions before using this machine.
WARNING!
To reduce the risk of fire, electric shock, or injury:
• Do not leave the machine unattended when it is plugged-in. Unplug the unit from the power
outlet when not in use.
• Unplug the machine from the power outlet before cleaning or servicing.
• Turn off all controls before unplugging.
• To avoid electric shock, do not expose to rain or snow. Store and use indoors.
• Wear hearing protection if desired. The measured sound level of the MX 521 H is 75dB(A).
• Do not allow to be used as a toy. Close attention is necessary when used near children.
• Use only as described in this manual. Use only the manufacturer’s recommended attachments.
• Inspect the power cord regularly for damage, such as cracking, ageing, or damaged insulation.
Replace the power cord with the same type as original if any damage is found. Do not use with
damaged cord or plug.
• Use a defoamer any time you get foam in the recovery tank, to prevent motor damage.
• If foam or liquid comes out of the vacuum motor or exhaust, turn the machine off immediately.
• If the machine is not working as it should, has been dropped, damaged, left outdoors or flooded
with water, return it to a service center.
• Do not pull the machine by the cord, do not use the cord as a handle, close a door on the cord,
or pull the cord around sharp edges or corners. Do not run the machine over the cord. Keep
the cord away from heated surfaces. To unplug, grasp the plug, not the cord.
• Do not handle the plug, the cord, or the machine with wet hands.
• Extension cords must be 12/3 and no longer than 50 feet. Replace the cord or unplug
immediately if the ground prong becomes damaged.
• Do not put any object into openings. Do not use with any opening blocked; keep free of dust,
lint, hair, and anything that may reduce air flow.
• Do not pick up anything that is burning or smoking, such as cigarettes, matches, or hot ashes,
or any health endangering dusts. Do not use to pick up flammable or combustible liquids such
as gasoline or use in areas where they may be present.
• Use extra care when cleaning on stairs.
• Connect to a properly grounded outlet only.
• Liquid pumped out could be dangerous because of temperature, pressure, or chemical content.
• Do not let the pump run dry. If you run out of water, turn the machine off and refill