Sportsmith Blog

How to Lubricate a Treadmill

A treadmill can be a great tool in improving your health and personal fitness. Treadmills do, however, require some basic maintenance. These basic maintenance steps include cleaning and occasionally lubricating the belt and deck. These steps will help to keep your treadmill fully operational. Treadmills typically need to be lubricated every six months. Depending on use it may need to be lubricated more often. Some models will tell you when it is time to lubricate by displaying a message on the console. Be sure to check will your Service Manual for more details.


  • Choose a treadmill lubricant approved by the manufacturer of your treadmill. We recommend using a lubricant specifically made by the manufacturer in order to avoid any damage to the deck or belt of the treadmill. If you’ve purchased a replacement belt or deck be sure to check for what lubricants are suggested for that deck or belt.
  • Make sure you turn off the treadmill and unplug it from the wall socket before performing any maintenance to the machine. This will help avoid electrical shock. Find the running belt and the running deck of the treadmill. The running belt is the moving part that rotates around the base of the treadmill. The deck is the solid surface found underneath the treadmill belt.
  • Using the proper tool loosen the bolts on the rear roller. These two bolts are found at the back of the treadmill on both sides of the belt. These bolts control the tension of the belt. Once you loosen the bolts, the belt will lack and make it easy lift it up. Lifting the belt will give you access to the running deck. The belt and bolts are not to be removed from the treadmill. *Take not of how many turns you loosen each bolt.
  • Clean the treadmill belt and running deck by wiping it down with a damp cloth. Make sure you have removed any dust or dirt that may have accumulated.
  • Apply approximately 2 oz. of lubricant onto the top of the running deck between the belt. Evenly apply the lubricant as you spread it across the deck. Take caution to not get any on the walking surface of the belt.
  • Restore the belt to its original position by tightening the rear roller bolts. Before tightening the bolts refer back to how many turns you loosened the belt in step 3. Plug the treadmill in and turn it back on. To ensure that it is properly lubricated, walk on the treadmill for a few minutes. This will help thoroughly spread the lubricant over the running deck.