Theory Of Operation - Life Fitness 97Te Service Manual

Life Fitness Model 97Te, 95Te, 97Ti, 95Ti and 93T Arctic Silver Treadmills

Theory of Operation

The Treadmill is an electromechanical device that operates on A/C Voltage System and is controlled
through the electronics in the Display Console. The key components that make up the Treadmill are the
Unit Frame, Electric Motor and Motor Controller, Belt and Deck, Pulleys and Rollers, and the Display
Console.
Initially the Line Filter receives the voltage. It is to the Motor Controller and other various electrical and
electronic components that activate all the mechanical devices. The operator ultimately controls all
electromechanical devices through the Console Display and with a touch of a finger can make settings
and adjustments to Speed, Incline, and Custom Workout Programs.
The Unit Frame is critical not only to support the operator but also to support the electromechanical
devices and the unit's overall appearance. Although the frame is a non-maintenance item, its design and
structure are essential to providing years of safe and reliable service.
The most critical parts on the Treadmill are the Striding Belt and Deck. Regardless of all other
components, the success of a good Treadmill is its Striding Belt and Deck. The Deck is made up of a
special particleboard, which allows for flexibility and long wear. The Waxless Striding Belt allows for self
lubrication to ensure long life to both belt and deck. Under the Deck are the Lifesprings™, which are
designed to support and absorb the shock load.
The Striding Belt is designed to endure constant stress loads. It is mounted directly over the Front and
Rear Rollers. The Main Drive Motor has a Pulley on the end of its shaft, which is connected by a Drive
Belt to the Front Roller Pulley. The Rear Roller is freewheeling. The Striding Belt tension is adjustable by
means of Adjusting Bolts, which are located at the ends of the Rear Roller. When turned, they are used
to adjust belt tension and belt centering. In order to increase belt and deck life, it is important to properly
keep all areas of the machine clean.
The Display Console is the brain center of the Treadmill. It is here where all electromechanical
operations are controlled for specific program operations. Depending on the Display Console, various
selections and settings can be easily accomplished either through a Numeric Keypad or Up/Down
Arrows. The Display Console allows the operator to selectively choose the program and input pertinent
statistical information such as Weight, Age, Language, etc.
The Treadmill is by far one of the most popular pieces of all cardiovascular exercise equipment. With
proper routine preventative maintenance and care, it will provide a lifetime of healthy cardiovascular
exercise.
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