Stairmaster 4000 PT series, Owner'S Manual

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Page 54
The machine must be grounded if you are using the external power supply or
the battery charger. Grounding provides the path of least resistance for the
electric current, thereby reducing the risk of electric shock. The power supply
or battery charger must be plugged into an appropriate outlet that is properly
installed and grounded in accordance with all local codes and ordinances.
The grounding plug on the power supply and the battery charger is
shown in sketch A below*. A temporary adapter, shown in sketches B and C,
may be used to connect the plug to a two-pole receptacle if a properly
grounded outlet is not available. The adapter should be used only until a
properly grounded outlet (sketch A) can be installed by a qualified electrician.
The tab extending from the adapter must be connected to a permanent ground
such as the metal screw on the outlet cover.
* This may vary for International power supplies.
!
DANGER
IMPROPER CONNECTION OF THE EQUIPMENT-GROUNDING CONNECTOR CAN
RESULT IN THE RISK OF ELECTRIC SHOCK. CHECK WITH A QUALIFIED
ELECTRICIAN OR SERVICE PERSON IF YOU ARE IN DOUBT AS TO WHETHER
THE MACHINE IS PROPERLY GROUNDED. DO NOT MODIFY THE PLUG PROVIDED
WITH THIS MACHINE. IF IT WILL NOT FIT THE AVAILABLE OUTLET, HAVE A
PROPER OUTLET INSTALLED BY A QUALIFIED ELECTRICIAN.
Figure 5: Grounding System
GROUNDING INSTRUCTIONS