We are knowledgeable and passionate about fitness. Read our reviews and find out what our customers have to say about our products and service.

Fast and Free Delivery

Fast and free delivery service when you spend £99 or more. Find out more.

In Home Repair Warranties

Enjoy peace of mind with our industry leading warranties: in the unlikely event that your machine develops a fault, we will arrange for a specialist engineer to fix it in your home, free of charge.


Visit our fitness equipment shop to try out our range of treadmills, cross trainers, exercise bikes and rowing machines. Check our opening hours here.

Treadmill Repairs

Treadmill Repairs, Service and Maintenance

JTX Fitness work with expert engineers and fitness machine specialists to make treadmill repairs easy. Regular maintenance will ensure your treadmill stays in top working order. If you need further advice, don't hesitate to contact our friendly customer support team directly, who are always happy to help.

Treadmill Maintenance

Keeping your treadmill in top condition with regular maintenance will help extend its life. Partnering with chartered engineers and fitness machine specialists Northwick, we've created a series of videos offering straight forward and qualified advice on subjects varying from maintenance, assembly, troubleshooting and preventing common problems often found with treadmills.

How to assemble a treadmill

Top tips on how to assemble a treadmill. Focusing on the care points that often cause issue when putting together a machine, we show you how best to assemble your treadmill.

How to lubricate a treadmill belt

It is important to note that an insufficiently lubricated deck will cause the belt, running deck and the motor to wear out much quicker. Give your machine a longer life and help it run smoothly with these simple instructions on how to lubricate your treadmill belt. You can buy treadmill lubricant in our fitness accessories section of the shop.

How often lubrication should be applied depends on usage, we recommend the following:

  • Light use (less than 3 hours a week) - lubricate every 8 months
  • Medium use (3 to 5 hours a week) - lubricate every 4 months
  • Heavy user (more than 5 hours a week) - lubricate every 2 months
    • To check for sufficient lubrication levels, disconnect the treadmill from the power supply. Put your hand underneath the mat and feel along the running deck, as close to the centre of the deck as you can. If your hand gets a light coating of lubricant, then no further lubrication is required.

      If the surface feels dry and your hand feels clean, then apply more lubricant in the central area of the running belt. Re-apply 15ml or 20ml of lubricant as required.

      Be careful not to over-lubricate the belt. Add a little lubricant at a time, reconnect power to the treadmill and walk it for at least 15 to 20 minutes and then re-check. Repeat the process if necessary, until the desired result is achieved.

      Note: With a folding treadmill, we recommend that it is not folded immediately after applying silicon lubricant. The treadmill will need to be used for at least 15 to 20 minutes to ensure the silicon lubricant is evenly spread and fully absorbed into the running belt before folding.

How to: Treadmill Maintenance

General maintenance advice to perform on your treadmill to make sure you get the most life out of it. As simple as wiping your treadmill down after use and regularly lubricating the belt.

How To Adjust A Treadmill Belt

Adjust the tension and alignment of your treadmill belt to keep it centered and to stop it from slipping.

How to lubricate pivots

Lubricating the pivots on your treadmill can help resolve any noises or squeaks that may occur on your machine over time.

JTX Sprint-9 Assembly Advice

When assembling a JTX Sprint-9 treadmill it's important to make sure to only tighten the fixings finger tight initially. This allows room for alterations and proper alignment. Once everything has been put together, only then should you tighten all fixings.

Where to Keep Your Equipment

It's important to keep your fitness equipment in the right sort of environment to prevent any unnecessary damage or wear.



Warranties provided by JTX fitness include all costs and parts. No need to worry about a call out charge, labour or extra bits of kit you may need. Contact us to find out more or book a treadmill repair.


Even if your JTX treadmill is out of warranty, our customer service team will do everything they can to help you get it in working order. We'll be happy to book a specialist engineer and get you back up and running.

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We reccomend you have your treadmill serviced at least every other year, to keep it in good working order and to extend the life of the machine. Treadmill services are not included in your warranty, but we will be happy to arrange your treadmill service at the best price. Please contact us for more details.

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Find out more about maintenance, repairs and servicing your equipment.

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