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How to Replace a Treadmill Walking Belt: Step-by-Step Guide

If your treadmill's walking belt is worn out, damaged, or slipping, it may need to be replaced. Follow these steps to safely and effectively replace the walking belt on your treadmill.

Tools and Materials Needed:

  • Screwdriver (Phillips and flathead)
  • Allen wrench
  • Wrench or socket set
  • Replacement walking belt compatible with your treadmill model
  • Treadmill-specific lubricant
  • Safety gloves

Step-by-Step Instructions:

  1. Turn Off and Unplug the Treadmill:

    • Ensure your safety by turning off the treadmill and unplugging it from the electrical outlet.
  2. Remove the Motor Cover:

    • Locate the motor cover, usually found at the front of the treadmill.
    • Use a screwdriver to remove the screws securing the motor cover.
    • Carefully lift off the motor cover to expose the motor and front roller.
  3. Loosen the Walking Belt:

    • Locate the adjustment bolts at the rear of the treadmill.
    • Use an Allen wrench to turn the adjustment bolts counterclockwise to loosen the walking belt.
    • Ensure the belt is loose enough to be easily removed.
  4. Remove the Front and Rear Rollers:

    • Use a screwdriver or wrench to remove the screws or bolts securing the front and rear rollers.
    • Carefully lift the rollers out of their positions, taking care not to damage any wires or components.
  5. Remove the Old Walking Belt:

    • Slide the old walking belt off the treadmill deck and remove it completely.
    • Inspect the deck for any signs of wear or damage. Clean the deck with a damp cloth to remove any debris or dirt.
  6. Install the New Walking Belt:

    • Position the new walking belt on the treadmill deck, ensuring it is aligned properly.
    • Slide the belt onto the front and rear rollers, making sure it sits evenly on the deck.
  7. Reinstall the Front and Rear Rollers:

    • Place the front and rear rollers back into their positions.
    • Secure the rollers with screws or bolts, ensuring they are firmly attached.
  8. Adjust the Walking Belt Tension:

    • Use an Allen wrench to turn the adjustment bolts at the rear of the treadmill clockwise to tighten the walking belt.
    • Make small adjustments to ensure the belt is centered on the deck and has the correct tension.
    • The belt should have a little give when lifted but should not be too loose or too tight.
  9. Lubricate the Walking Belt and Deck:

    • Lift the edges of the walking belt and apply a treadmill-specific lubricant between the belt and the deck.
    • Spread the lubricant evenly to ensure smooth operation.
    • Run the treadmill at a low speed for a few minutes to distribute the lubricant.
  10. Replace the Motor Cover:

    • Once the belt is properly adjusted and lubricated, carefully place the motor cover back onto the treadmill.
    • Use a screwdriver to secure the motor cover with screws.
  11. Turn On and Test the Treadmill:

    • Plug the treadmill back into the electrical outlet.
    • Turn on the treadmill and test it at a low speed to ensure the new walking belt is functioning properly.
    • Gradually increase the speed and check for smooth operation and proper alignment.

Safety Reminder:

Always turn off the power to the treadmill and unplug it before performing any repairs or adjustments. If you are unsure about any steps or feel uncomfortable performing the replacement, it’s crucial to contact a professional technician for assistance.


For a cost-effective and eco-friendly solution to treadmill repair issues, consider sending your faulty components to UpFix for repair. UpFix offers repair services that can save you up to 80% compared to buying new components, while also supporting an eco-friendly service by reducing electronic waste. Visit UpFix.com for more details.