How to Replace Treadmill Belt Safely ( A Complete Guide )

How to Replace Treadmill Belt
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Want to know how to replace treadmill belt? This article will get you covered everything regarding treadmill belt replacement.

A treadmill belt is an important component of any treadmill and needs to be carefully maintained.

It’s important to regularly inspect your treadmill belt for signs of wear and tear, as this can help extend its life and ensure your workout is safe.

If your treadmill belt is worn or torn, then it’s recommended to replace the treadmill belt as soon as possible.

If you don’t replace your treadmill belt, the old belt will break and tear, causing friction and damaging the motor. The motor will burn out more quickly, so you’ll have to replace it sooner than you would.

In this article, we are going to cover everything including the required tools, determination process, and easy to follow steps for treadmill belt replacement.

5 Tools Required For Replacing Treadmill Belt

The right tools are essential to successfully replacing the treadmill belt. Most of these tools are available at local hardware and home improvement stores.You can also buy them online. Here’s how they work:

Replacement Belt – A replacement belt is needed when the belt on your treadmill stops functioning properly

Allen Wrench – An Allen wrench adjusts the tension on the treadmill belt.

Screwdriver – This is used to remove the old belt.

Wrench Set – A wrench set is needed to tighten the belt after replacing it.

Treadmill Belt Lubricant – Lubrication is critical when working on a treadmill belt. This lubricant helps prevent damage to the belt and other components during installation and removal from a treadmill motor housing.

Now, let’s move towards the process of replacing the treadmill belt.

Here Is How To Replace Treadmill Belt ( Step-By-Step Process )

Don’t want to pay the extra cost associated with having a professional come in and replace your treadmill belt?

No problem!

Replacing the treadmill belt is relatively easy and can save you around 200 dollars, if you do it by yourself.

To do it by yourself, here are some easy steps that you can follow: 

1. Unplug Your Treadmill

Start by unplugging the power cord of your treadmill from the wall socket. It is an important safety step to ensure that no electricity can get to the treadmill while you are replacing treadmill belt.

2. Remove Screws

Remove any screws that hold the hood and console in place. This will help you access the treadmill’s interior and gain access to the belt.

3. Remove The Old Belt

Once you have access to the belt, please remove it from its pulleys and slide out completely. Ensure you keep all the screws and parts organized safely, so they don’t get lost during the process.

4. Put The New Belt

Now it is time to put in the new belt! Start by lubricating both sides of the belt with a silicone-based lubricant. It will ensure that your belt does not slip as easily when running or walking on it.

5. Reassemble It

Reassemble each piece of your treadmill and make sure that everything is securely tightened before plugging it back into the wall socket. 

6. Test Run

Finally, test out the newly installed belt by running or walking at different speeds and inclines to ensure everything is working correctly. 

If it seems comfortable and smooth while running, it means you have successfully replaced the treadmill belt. Congratulations!

Why Is It Important To Replace A Treadmill Belt 

It is very important to replace a treadmill belt, because it gives you the support and stability you need to get you through your workout. 

If you don’t replace your treadmill belt at least once a year, it can cause many problems for your machine and you.

A treadmill belt consists of several parts that work together to support your body as it works, the belt consists of a metal roller attached to a drive motor assembly. 

This assembly also has an idler pulley and a tensioner pulley. Belts and pulleys connect these three parts.

When a belt breaks, it can be difficult to tell what’s happening with it because there are so many different parts to its function.

But if one part is drooping more than the other, there might be something wrong with the entire system or one of its parts.

If you notice any signs of wear on your treadmill belt, it is important to replace it as soon as possible so that it does not cause further damage or harm to your machine.
A pro tip: Sometimes you think your treadmill belt needs to be replaced. But it will work well mostly by just lubricating a treadmill belt. So, make sure to check it first.

How To Know Your Treadmill Belt Need To Be Replaced

As we know, the treadmill belt is the most important component of the treadmill, and it is the one that can break over time.

The treadmill belt is made of PVC, a very durable material. However, this material can also break down over time if not properly maintained.

But the question is how to know, it needs to be replaced or works well by adjusting your treadmill belt only.

If your machine makes a high-pitched screeching sound or the belt starts to grind when you walk on it, it may be time to replace it.

Several signs indicate you should take your treadmill in for service. Here are some of the most common:

1. The Shuffle Test

While the treadmill is off, swing your feet back and forth on the belt like you’re rocking a surfboard.

A good belt should glide smoothly. If you notice any sticky spots or the belt jerks and doesn’t glide smoothly, it may be time to replace it.

2. Walking Test

Again, ensure the treadmill is off and push against the dashboard of your machine. A good drive belt will allow you to move freely. If your belt needs to be replaced, it will be quite difficult to roll the belt.

3. Drive Test 

While standing with one foot on each treadmill, slowly drag both feet across the floor. If there’s a gap between the belt and your feet, it may be time to replace it!

4. Feel Under The Belt

If you notice that your treadmill belt feels like a bumpy surface, it means the belt needs to be replaced.

You can also feel if there is any extra tension on the underside of the belt by lifting it and running your hand along its length.

If there is too much friction between your feet and the bottom of the belt, you may need to replace it.

5. Pull Down On The Belt Latch

It is an easy way to tell if your treadmill needs a new belt or not. If you can pull down on your treadmill’s latch while shifting into a stride and feeling resistance, your fan motor needs replacement.

Effective Tips For Top Brands Treadmill Belt Replacement

If you have a treadmill of any of the top brands mentioned below, then it’s recommended to check out the specific instructions for each brand to replace treadmill belt more effectively.

1. Nordictrack Treadmills

Nordictrack treadmills are some of the most popular treadmills in the market. They are known for their durability and high-quality build. 

For Nordictrack Treadmills, Start by loosening the screws on either side of the machine that holds the belt in place.

Carefully remove and discard the old belt, then slide the new belt in, making sure it is properly engaged with all the rollers. Tighten the screws and adjust the tension of your new belt. 

Finally, ensure the belt is secure and run a few test steps to ensure it runs smoothly. With these simple instructions, you’ll be back running on your treadmill in no time!

2. Weslo Treadmills

Replacing the belt on your Weslow treadmill can seem daunting, but don’t worry! With these easy-to-follow instructions, you’ll have your treadmill running like new.

First, turn off the power to your treadmill and unplug it from the wall outlet. Next, loosen the hex key screws on the side of the treadmill frame.

Carefully lift and remove the entire belt assembly, including the rollers and the plastic cover.

Now comes the hard part of replacing the belt, be sure to measure your new belt to ensure it is the correct size and fit for your treadmill.

Now, slide one end of the belt onto the top roller, pull tight, and slide the other end onto the bottom roller. Tighten all the hex key screws securely and replace the plastic cover.

Finally, turn the treadmill back on and turn on the power. Now! You did it! Who Said Changing Belts Was Hard?

3. Proform Treadmills

Are you ready to get your heart rate up and start running? If so, it’s time to replace the belt on your treadmill.

It’s a simple process that won’t take much time, but it’s important to follow the instructions carefully for a successful conversion.

First, unplug your Proform treadmill from the wall outlet and remove the safety key. Next, you will need to find the 3 screws on the front of your treadmill.

Once you’ve removed the old belt, it’s time to install the new one. Start by placing one side of the new belt over the pulley and then slide it to the other.

Finally, replace the motor cover and secure it with 3 screws. Plug your treadmill back into the wall outlet.

Now you are ready to run! Contact Proform Customer Service for assistance if you have any questions or need help with the process.

Related: How to Use a Treadmill

Frequently Asked Questions Regarding How To Replace Treadmill Belt

Below are some of the most common questions we got asked regarding treadmill belt replacement:

Are Treadmill Belts Universal?

No, treadmill belts are not universal. Treadmill belts come in different sizes and shapes to fit specific treadmill models.

It is essential to choose the correct replacement belt for your treadmill to ensure proper functioning and prevent damage to your machine.

How Long Do Treadmill Belts Last?

The lifespan of a treadmill belt can vary depending on several factors such as the quality of the belt, frequency of use, maintenance, and weight of the user.

Generally, a high-quality treadmill belt can last for up to 3-5 years with regular use and proper maintenance. 

Is It Worth It To Replace The Treadmill Belt?

Yes, replacing a treadmill belt can be relatively easy and save you a ton of money in the long run. Also, it will extend the life of your treadmill for years to come.

How Much Does It Cost To Replace A Treadmill Belt?

The cost of replacing the belt will depend on the treadmill’s make, model, and size. But the average cost of replacing a treadmill belt can range from $30 to $150. 

How Often Do Treadmill Belts Need To Be Replaced?

To ensure that the treadmill runs smoothly and safely, replacing the belt at least every two years is important.

Mostly, the belt is often overlooked because it doesn’t look like the other parts of the machine.


Replacing a treadmill belt is a relatively simple process that can be done by anyone with basic tools and some patience.

By following the steps outlined in this guide regarding how to replace treadmill belt, you can save money on costly repairs and extend the life of your treadmill.

Remember to always check your owner’s manual and use the correct replacement belt for your specific model.

With proper maintenance and care, your treadmill can continue to provide you with a convenient and effective way to stay fit for years to come.

Thanks For Reading!🌹

Article by

Tahir Nagra

Tahir Nagra is a certified personal trainer, fitness enthusiast, and founder of Nagra fitness zone. With a bunch of experience in the industry, he shares tips and advice to help others achieve their fitness goals. He’s also in the business of selling and purchasing treadmills.