Life Fitness Lifecycle 4500 Series User Manual

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

Life Fitness Lifecycle 4500 Series Specifications

General

Display	LCD
Programs	Manual, Random, Hill, Plateau, Interval, Fat Burn, Cardio, Fit Test
Weight Capacity	400 lbs (181 kg)
Dimensions	58" L x 24" W x 54" H (147 cm x 61 cm x 137 cm)
Type	Upright
Heart Rate Monitoring	Contact Grips and Telemetry
Display Type	LCD

Summary

Life Fitness Lifecycle Exercise Bikes Service Manual

How to Use This Service Manual

Introduction to Service Manual Sections

Overview of the five sections: Introduction, Troubleshooting, Diagnostics, How-To Guides, and Parts Identification.

Troubleshooting Exercise Bike Issues

Troubleshooting: No Power

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

Troubleshooting: Display Console Initialization Issues

Addressing problems with the display console initializing but not staying on.

Troubleshooting: Erratic Display Console Behavior

Resolving issues with flickering, fading, or erratic display console behavior.

Troubleshooting: Flashing Prompt Status

Resolving issues where a flashing prompt remains on or goes off unexpectedly.

Troubleshooting: Program Load Issues

Addressing problems with program loads at the start or middle of a workout.

Troubleshooting: Keypad Responsiveness

Resolving issues where the keypad keys do not respond (excluding start button).

Troubleshooting: Loud Noise from Exercise Bike

Diagnosing and fixing causes of loud noises originating from the exercise bike.

Troubleshooting: Level Changes During Program

Addressing issues where the workout resistance level changes unexpectedly during a program.

Troubleshooting: Difficult or Too Easy Pedaling

Resolving issues with difficult pedaling or the bike feeling too easy to pedal.

Troubleshooting: Pedal Tension and Resistance

Diagnosing and fixing problems with pedal tension or resistance not changing.

Troubleshooting: Pedal Forward Movement

Resolving issues where the bike will not pedal forward.

Exercise Bike Diagnostics Tests

Diagnostics State 1: Keypad Functionality

Verifying that all keys on the display are responding properly.

Diagnostics State 2: LED Functionality

Testing the functionality of all LEDs on the display.

Diagnostics State 3: Software and Jumper Options

Indicating the state of software version and jumper options.

Exercise Bike Component Replacement Procedures

Alternator and Related Component Service

Procedures for replacing the alternator, belt, and control board.

Drivetrain Component Service

Instructions for replacing the chain, pedals, and crank bearing assemblies.

Handlebar and Console Replacement

Steps for removing and reinstalling the handlebar assembly and display console.

Seat and Housing Replacement

Guide for replacing the seat, seat post, and main housing.

Exercise Bike Parts Identification

Parts List and Numbers

Detailed list of all parts with their corresponding part numbers for different models.

Exploded View of Exercise Bike Components

Visual representation of bike components with numbered parts.

Model and Serial Number Identification

Locating Model and Serial Numbers

Guidance on how to identify the exercise bike's model and serial number.

Preventive Maintenance Schedule and Procedures

Preventive Maintenance Overview

Guidelines for keeping the exercise bike in smooth working order.

Preventive Maintenance Schedule

A schedule outlining daily, bi-annually, and annually maintenance tasks.

Wiring Block Diagram

Understanding the Wiring Diagram

Diagram illustrating the electrical connections and components of the bike.

Communicating with Customer Support

Submitting Parts Orders and Troubleshooting via Fax

Instructions for using the fax form for parts orders and problem reporting.

Customer Support Fax Form

The official fax form for customer support services and parts ordering.