How to Fix a Slipping Treadmill Belt – Expert’s Tips to Fix Treadmill Belt


Have you ever had your treadmill stop briefly while you were running on it? You might have a loose belt. A personal treadmill can be an advantage. However, convenience also comes with great responsibility. Your treadmill will now run smoothly. A slipping belt is not uncommon. It’s not unusual for treadmill owners to spend precious time waiting on a repair service because they don’t know the answer. Is it possible to fix it at home? I have good news for you. Depending on your model, a slipping belt is generally entirely fixable. This article will answer your question about how to fix a slipping treadmill belt.

Why is my belt sliding? 

There could be many reasons your treadmill belt is slipping. It is essential to identify the root cause to correct the problem. Lubricate the belt first. Insufficient lubrication can cause friction between the belt’s running deck and the belt, which will hinder a smooth run. The deck might have been oiled, so the slipping could be due to a loose walking belt. This needs to be tightened. After you’ve checked the other possibilities, there may be a loose drive belt causing your problems. It is located under the motor’s hood and can be more challenging to repair at home. Leave it for a professional. There are two other possible reasons your belt could be sliding. Either the pulley that holds the front roller in place has lost its grip, or the belt is worn down.

Read more: How to move a treadmill

how to fix a slipping treadmill belt

How to diagnose a slipper belt

A slipping belt that is running will stop moving for a second when you run. So if you land harder than usual, you may be able to notice it sooner. To help you diagnose a slipping problem with your belt, there are many ways to do it.

Learn more: How to choose the right treadmill machine


Checking the lubrication of the belt can be done by sliding your hand gently underneath the strap on one side. It should feel smooth. It should feel smooth. However, if it feels dry, friction can be created, which will hinder a continuous run. This is when lubricant is needed.

Adjustments recommends that you slide your hand under the belt at either side and try to lift it. You should usually be able to lift it two to three inches off the deck. Raise it no higher than that. This indicates it is too loose and must be adjusted. You could also try gliding your hand under the belt to see if you can get there. With some effort, you should be able to reach the middle. Your arm may slide to the opposite side if it is too loose or needs adjustment.

Belt for worn-down 

You might not notice a worn belt, but you can feel it by sliding your finger underneath. It could be that the belt is deteriorating if you think of any dust or crumbs.

How to fix a slipping treadmill belt

Once you’ve identified the problem, I will show you how to fix it. This is usually a simple job. However, you must know your limits. Do not hesitate to seek professional help if you are unsure.

How to lubricate slipping treadmill belt? 

Always use the recommended lubricant according to the instructions manual. Before applying any lube, you may need to remove dust from the deck. It could cause further damage to your treadmill if it is too heavy. Do it by losing the belt. Next, place the treadmill on its side and dust it off. Apply the lube by placing half the packet on one end and the other half on the opposite. Turn on the treadmill for five minutes, tighten the belt if necessary, and then let it run aloft for five more minutes. Continue to walk on the belt for a minute more, and it should start running smoothly again.

How to make adjustments 

An Allen wrench or a hex key are required to tighten the walking belt. You should see two or three roller bolts at the end of your treadmill. Turn clockwise with your tool. It would help if you tightened it evenly. Do this slowly. Turn the screw by turning it half turn and then repeat the process on the opposite side. Make sure you frequently stop to ensure that the tension is not too tight. You can also tighten loose drive belts by following the instructions on your treadmill. It is not recommended for beginners as it could cause further damage to the treadmill. You’re better to call a professional if you have a loose drive belt.

Read more: How to fix slipping treadmill

How do you check the tension in your treadmill belt? 

A belt can usually be lifted away from the running board. If the belt is in the proper tension, it should be raised slightly above the running deck. Anything beyond that, the belt will be loose. If the treadmill belt slips, even after you have tried all the options, it may still be open. The belt tension may need to be adjusted. When the walking belt is loose, you should expect lots of slippages.


You now know how to fix a slipping treadmill belt. This is quite simple, but you need to be aware of your limits to avoid further damage. It is crucial to identify the root cause of the problem. You could cause more harm if you aren’t sure. Don’t worry though, most problems can be easily identified. These steps are essential to remember. Start by checking to see if you need lube. Next, make sure to check for any adjustments and that the belt is in good shape. Be confident! You are likely to be able to solve the problem.

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