1. Product Overview
This SHEJIO replacement running belt is designed for specific NordicTrack treadmill models. It is constructed from high-quality PVC material, engineered for durability and optimal performance.
Key Features:
- Material Quality: High-quality PVC material with a wear rate 20% lower than traditional materials, offering a softer texture for improved operation and reduced load on the treadmill motor.
- Pre-Lubrication: The belt is pre-lubricated to facilitate installation and initial use. Additional lubricating oil is provided for supplemental application if needed.
- Conductive Wires: Integrated conductive wires help prevent static electricity and improve electrical conductivity, enhancing user safety and extending the belt's lifespan.

Image 1.1: The SHEJIO replacement treadmill running belt, rolled for packaging.

Image 1.2: Visual representation of the running belt's key attributes, including anti-slip, wear-resistance, quiet operation, and durability.
2. Compatibility Information
It is crucial to verify your treadmill's model number before ordering to ensure compatibility. Treadmill models, even with similar names, may have multiple belt specifications.
Compatible NordicTrack Models (Part Number 350009):
- C300: NETL129140
- C700: 24988C0 (Canada), 24988C1 (Canada), 24988C2 (Canada), 24988C3 (Canada), 24988C4 (Canada), 24988C5 (Canada), 831.249881, 831.249882, 831.249883, 831.249884, 831.249885
- C850i: 250271, 250272, 250275, 250277, 250278, 250279
Important: This belt is NOT compatible with the following C700 models: NTL169150, NTL169151, NTL169152, NTL16915C0, NTL16915C1, NTL16915C2, 831.293170, NTL596190, NTL790120, NTL790121.

Image 2.1: Guidance on checking your treadmill's model number for compatibility. The model number is typically found on a data sticker on the machine's frame.

Image 2.2: Detailed list of specific NordicTrack models compatible with Part Number 350009, and examples of non-compatible models.
3. Product Specifications
| Specification | Detail |
|---|---|
| Brand | SHEJIO |
| Material | Polyvinyl Chloride (PVC) |
| Belt Style | Flat Belt |
| Compatible Devices | Treadmill |
| Item Weight | 3.65 Kilograms (8.05 Pounds) |
| Package Dimensions | 20.75 x 5.25 x 5.15 inches |
Belt Structure:
The running belt features a multi-layer design for enhanced performance and durability:
- Surface Layer: PVC material providing strong friction and wear resistance.
- Interlayer: Contains conductive wires to prevent static electricity.
- Reinforcing Layer: Provides structural integrity and stability.
- Cushioned Cushion Layer: Contributes to a softer running experience.
- EVA Silencer Layer: Reduces operational noise.

Image 3.1: Illustration of the treadmill belt's layered construction, highlighting the surface, interlayer, and conductive wire components.

Image 3.2: Detailed exploded view of the multi-layer running belt design, emphasizing its components for comfort and durability.
4. Installation Guide
Replacing a treadmill running belt requires careful attention. Refer to your specific treadmill model's service manual for detailed instructions. The following are general steps:
- Safety First: Always disconnect the treadmill from the power source before beginning any installation or maintenance.
- Access the Belt: Remove any covers or components necessary to access the running belt and rollers.
- Loosen Rollers: Loosen the rear roller bolts to release tension on the old belt.
- Remove Old Belt: Carefully slide the old belt off the deck and rollers.
- Clean Deck: Clean the treadmill deck thoroughly to remove any debris or old lubricant residue.
- Install New Belt: Slide the new SHEJIO running belt onto the deck and over the rollers. Ensure it is centered.
- Pre-Lubrication Check: This belt is pre-lubricated. If, during installation, you observe insufficient lubrication between the belt and the deck, apply a small amount of the additional lubricating oil provided. Avoid excessive application to prevent belt slippage.
- Tension and Center: Gradually tighten the rear roller bolts, ensuring the belt is evenly tensioned and centered. Refer to your treadmill's manual for proper tensioning specifications.
- Test Operation: Reconnect power and test the treadmill at a low speed. Adjust tension and centering as needed until the belt runs smoothly without drifting or slipping.
5. Operation Guidelines
Once the new running belt is installed and properly adjusted, the treadmill can be operated according to its manufacturer's instructions. Ensure the belt remains centered and does not slip during use. If any issues arise, refer to the troubleshooting section or contact support.
6. Maintenance
Regular maintenance of your treadmill running belt is essential for its longevity and the overall performance of your treadmill.
Lubrication:
- It is recommended to lubricate the running belt at least once a year. This reduces friction between the belt and the deck, minimizing stress on the treadmill's motor and other components.
- Use only lubricants specified for treadmill belts. Excessive or incorrect lubrication can cause slippage and damage.
Cleaning:
- Periodically clean the top surface of the running belt with a damp cloth to remove dust and sweat.
- Ensure the area beneath the belt is free of debris, as this can cause friction and wear.
Inspection:
- Regularly inspect the belt for signs of wear, fraying, or damage.
- Check belt tension and centering periodically. An overly tight belt can strain the motor, while a loose belt can slip.

Image 6.1: Manufacturing details illustrating the quality control and production process of the running belt.

Image 6.2: Visual representation of the manufacturing process, highlighting precision and quality assurance steps.
7. Troubleshooting
If you encounter issues after installing the new running belt, consider the following common problems and solutions:
- Belt Slippage: If the belt slips during use, it may be too loose or over-lubricated. Adjust the rear roller bolts to increase tension slightly, ensuring even adjustment on both sides. If over-lubricated, allow excess lubricant to dissipate or carefully wipe it away.
- Belt Drifting to One Side: This indicates uneven tension. Adjust the rear roller bolts incrementally, tightening the side towards which the belt is drifting until it centers.
- Treadmill Lurches or Drops Speed: A worn or improperly tensioned belt can cause the treadmill to struggle. Ensure the new belt is correctly tensioned and lubricated. If the issue persists, consult your treadmill's service manual or a qualified technician.
- Incorrect Fit: If the belt does not fit correctly, double-check your treadmill's exact model number and compare it against the compatible models listed in Section 2.
8. Warranty and Support
Warranty:
The SHEJIO treadmill running belt comes with a one-year warranty, provided the treadmill operates normally. This warranty covers manufacturing defects and material failures under normal use conditions.
Customer Support:
For any dissatisfaction, questions regarding product suitability for your device, or warranty claims, please contact us directly via email. Our support team is available to assist you in finding a satisfactory solution.