General System Information; Warning And Caution Statements And General Safety Guidelines - Precor AMT Series Service Manual

General System Information

The generator performs three functions in the AMT. First, by
controlling the amount of electrical current applied from the generator
to a load circuit, the user's pedaling resistance is controlled.
Second, the generator is used to charge the AMT's internal battery.
Lastly, one of the generators three phase output windings is monitored
to determine when the unit is in use and when it is idle. This system
also determines the step rate by determining the operating speed
(output frequency) of the monitored generator winding. There is also a
magnetic brake that applies resistance to horizontal motion and a
sensor that measures horizontal motion (stride length).
Warning and Caution Statements and General Safety
Guidelines
Warning statements indicate a particularly dangerous activity. Warning
statements you will find in this manual include:
♦ Because this is a self powered unit, it will either be necessary to
either equip the unit with the optional external power supply or
have an assistant pedal on the unit while voltage measurements are
being taken. Because of the danger of working on the unit while it
is in motion using the optional external power supply is strongly
recommended.
♦ When the unit is used, stairarms are in motion; the generator will
operate and produce potentially hazardous voltages even when the
battery is disconnected.
♦ Caution statements are intended to prevent damage to the AMT as a
result of the current activity. Caution statements included in this
manual are listed below:
•
When it is necessary to lift or move the AMT, ensure that the AMT
has adequate support and that you use proper lifting techniques.
When the rear platform is removed, the AMT may be lifted from the
rear and moved like a wheelbarrow.
•
To remove power from the AMT, the optional external power supply
(when equipped) must be disconnected from the wall outlet and the
red (positive) wire must be disconnected from the battery. Always
ensure that the AMT external power supply is unplugged from the
wall outlet and the red (positive) wire is removed from the
battery when you inspect or adjust the AMT, or when you isolate,
remove, or replace an AMT component.
•
Removing the covers exposes high voltage components and
potentially dangerous machinery. Exercise extreme caution when
you perform maintenance procedures with the cover(s) removed.
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