Introduction
Welcome to the Life Fitness X3 Elliptical Cross-Trainer user manual. This guide provides essential information for the safe and effective use of your new fitness equipment. The Life Fitness X3 is designed to provide a smooth, natural, and quiet total body workout, featuring WhisperStride technology for fluid motion and an advanced console for interactive training.
Key features include an advanced workout console with interactive heart rate monitoring, optimally spaced oversized pedals for comfort, and an ErgoGrip stationary handlebar for stability during lower-body workouts. This manual will guide you through assembly, operation, maintenance, and troubleshooting to ensure a long and beneficial ownership experience.
Setup
Proper setup is crucial for the performance and longevity of your Life Fitness X3 Elliptical Cross-Trainer.
Unpacking and Placement
Carefully remove all components from the packaging. Ensure all parts are present before beginning assembly. The X3 measures approximately 65 inches deep, 27 inches wide, and 62 inches high. Choose a level surface for placement, ensuring adequate clearance around the machine for safe operation and maintenance.

Figure 1: The Life Fitness X3 Elliptical Cross-Trainer, showcasing its full design and console.
Assembly
Follow the detailed assembly instructions provided in the separate assembly guide that accompanies your product. Ensure all bolts, nuts, and washers are securely fastened. Do not overtighten. It is recommended to have two people for assembly due to the size and weight of the unit.
Initial Power-Up
Once assembled, connect the power cord to a grounded electrical outlet. The console should illuminate, indicating power. Perform a quick check of all moving parts to ensure smooth operation before your first workout.
Operating
The Life Fitness X3 Elliptical Cross-Trainer is designed for intuitive operation, providing a variety of workout options.
Console Overview

Figure 2: Close-up view of the Life Fitness X3's advanced workout console, displaying various metrics and control buttons.
The advanced workout console features an easy-to-read LCD display that tracks essential workout metrics including distance, speed, calories burned, resistance level, time, heart rate, target heart rate, METs, and watts. Buttons on the console allow for program selection, resistance adjustment, and data input.
Starting a Workout
- Step onto the oversized pedals. The pedals are optimally spaced to minimize lateral hip shifting and reduce stress on your lower back.
- Grasp the moving handlebars or the ErgoGrip stationary handlebar for stability.
- Select your desired workout program from the console. The console offers various challenging programs, including sport-specific training.
- Adjust the resistance level using the console controls. The X3 offers 10 resistance levels to customize your workout intensity.
- Begin pedaling. The WhisperStride technology ensures a smooth and quiet motion.
Heart Rate Monitoring
The X3 supports interactive heart rate monitoring using Lifepulse digital hand sensors located on the stationary handlebar or via a Polar wireless chest strap (sold separately). Maintain a consistent grip on the hand sensors for accurate readings. Your heart rate will be displayed on the console.

Figure 3: The Life Fitness X3 Elliptical Cross-Trainer positioned in a home fitness environment, demonstrating its compact footprint.
Maintenance
Regular maintenance will ensure the longevity and optimal performance of your Life Fitness X3.
Cleaning
Wipe down the machine after each use with a damp cloth to remove sweat and dust. Avoid abrasive cleaners or solvents that could damage the finish or electronic components. Periodically clean the console display with a soft, dry cloth.
Inspections
Periodically inspect all nuts, bolts, and moving parts for tightness and wear. Tighten any loose fasteners. Check the stability of the machine and ensure all components are functioning correctly. If you notice any unusual noises or movements, discontinue use and inspect the machine thoroughly.

Figure 4: An angled view of the Life Fitness X3 Elliptical Cross-Trainer, highlighting its robust frame and pedal design.
Troubleshooting
This section addresses common issues you might encounter with your Life Fitness X3 Elliptical Cross-Trainer.
- No Power to Console: Ensure the power cord is securely plugged into both the machine and a working electrical outlet. Check the circuit breaker.
- Unusual Noises: Inspect all moving parts for obstructions. Check that all assembly bolts are tight. Lubrication may be required for certain pivot points (refer to assembly guide for specifics).
- Inaccurate Heart Rate Reading: Ensure your hands are firmly gripping the Lifepulse sensors. If using a wireless chest strap, ensure it is properly positioned and has a fresh battery.
- Erratic Display: Power cycle the machine by unplugging it for 30 seconds and then plugging it back in. If the issue persists, contact customer support.
For issues not covered here, please refer to the support section or contact Life Fitness customer service.
Specifications
| Specification | Detail |
|---|---|
| Model Name | X3 |
| Brand | Life Fitness |
| Color | Silver or Gray |
| Product Dimensions (D x W x H) | 65" x 27" x 62" |
| Material | Alloy Steel or Stainless Steel |
| Resistance Mechanism | Magnetic |
| Maximum Weight Recommendation | 300 Pounds |
| Number of Resistance Levels | 10 |
| Manufacturer | Life Fitness |
| Item Package Dimensions (L x W x H) | 81.2" x 36" x 20.5" |
| Package Weight | 215 Pounds |
| Sport Type | Exercise & Fitness |
| ASIN | B001V01ZXY |
| Date First Available | August 25, 2008 |
Warranty
The Life Fitness X3 Elliptical Cross-Trainer comes with the following warranty coverage:
- Frame: Lifetime
- Parts: 3 Years
- Labor: 1 Year
Please retain your proof of purchase for warranty claims. For detailed terms and conditions, refer to the warranty document included with your product or visit the official Life Fitness website.
Support
For further assistance, technical support, or to inquire about replacement parts, please contact Life Fitness customer service. You can find contact information on the official Life Fitness website or through the retailer where you purchased the product.
Visit the Life Fitness Store on Amazon for more information and products.
Note: No relevant official product videos were found in the provided data to embed in this manual.





