Life Fitness Lifecycle 3500 Series User Manual

Lifecycle 3500, 4500, 5500 Series
Exercise Bikes
Customer Support Services
SERVICE MANUAL

Life Fitness Lifecycle 3500 Series Specifications

General

Brand	Life Fitness
Model	Lifecycle 3500 Series
Category	Exercise Bike
Language	English

Summary

Section I: Troubleshooting Guides for Lifecycle Exercise Bikes

No Power Troubleshooting

Diagnosing and resolving issues where the exercise bike has no power.

Display Console Initializes But Does Not Stay On

Troubleshooting steps for when the display console powers on but then shuts off.

Lights Flicker or Fade In and Out / Erratic Display Console

Resolving issues with flickering or inconsistent display console lights.

Keys Do Not Respond (Start Button Not Included)

Troubleshooting non-responsive keys on the console, excluding the start button.

Exercise Bike is Making a Loud Noise

Identifying and fixing sources of loud noises from the exercise bike.

Difficult to Pedal: Display is Off

Troubleshooting when pedaling is difficult and the display is off.

Will Not Pedal Forward

Troubleshooting the inability to pedal the exercise bike forward.

Section II: Diagnostics Tests for Lifecycle Exercise Bikes

Section III: How-To Procedures for Lifecycle Exercise Bikes

Remove and Replace the Alternator

Step-by-step guide to removing and replacing the alternator assembly.

Remove and Replace the Alternator Control Board/Resistor

Procedure for replacing the alternator control board and resistor.

Remove and Replace the Alternator Belt

Remove and Replace the Chain

Remove the Existing Crank Bearing/Nut Assemblies

Install the New Crank Bearing/Nut Assemblies

Remove and Replace the Handlebar Assembly/Display Console

Remove and Replace the Freewheel Assembly

Section IV: Parts Identification for Lifecycle Exercise Bikes

Preventive Maintenance Schedule for Lifecycle Exercise Bikes