Essential Treadmill Parts Replacement DIY Guide

Treadmills are one of the most popular pieces of home gym equipment. They offer a convenient way to stay fit without stepping outside. However, treadmills require regular maintenance to function efficiently like any other machine. Replacing essential parts at the right time can save you from costly repairs and ensure a smooth workout experience.

In this blog post, we’ll walk you through essential parts to replace and how to do it yourself. By the end, you’ll feel confident in maintaining your treadmill and keeping it running smoothly. Let’s get started!

Essential Treadmill Parts to Replace

General treadmill maintenance includes identifying which parts of your equipment require replacement in order to guarantee its efficiency and durability. Here are the important Treadmill parts to replace:

1. Treadmill Belt

Treadmill belt wear and tear will also impact your exercise and the life of the treadmill apparatus. Other signs include cracking, fraying around the edges, and slippage when using the equipment. These are signs that the belt should be lubricated or replaced.

How to Replace Treadmill Walking Belt in Easy Steps


Watch our step-by-step tutorial explaining replacement of walking belt.

Step 1: Gather the Necessary Tools
  • You'll need to gather a few tools that will be necessary for the job.
  • You'll need a screwdriver (either a Phillips or a flathead, depending on the screws on your treadmill), a wrench, a lubricant spray (such as silicone lubricant), a tape measure, and a replacement belt that matches the size and specifications of your current treadmill belt.
Step 2: Unplug the Treadmill

The first step in replacing your treadmill belt is to unplug the machine from the wall outlet. This is an important safety precaution that will prevent any electrical shocks or accidents from occurring during the process.

Step 3: Remove the Motor Cover

You'll need to remove the motor cover to access the treadmill belt. This is typically done by unscrewing a few screws on the side or bottom of the machine. Use your screwdriver to remove the screws and carefully lift the cover off the motor.

Step 4: Loosen the Tension Roller
  • The tension roller is responsible for keeping the treadmill belt tight and in place while in use.
  • To remove the old belt, you'll need to loosen the tension roller by using your wrench to turn the bolt that holds it in place.
  • Keep turning the bolt until the tension on the belt is completely released.
Step 5: Remove the Old Belt

With the tension released, you can now remove the old belt from the treadmill. Simply lift it off the machine and set it aside.

Step 6: Measure the New Belt
  • Before installing the new belt, you'll need to measure it to ensure that it's the correct size and length for your treadmill.
  • Use your tape measure to measure the length and width of the new belt, and compare these measurements to those of the old belt to ensure a proper fit.
Step 7: Install the New Belt
  • With the new belt properly measured, it's time to install it onto the treadmill. Begin by aligning the belt on the deck of the treadmill and making sure that it's centered and straight.
  • Then, loop the belt around the front and back rollers of the machine, making sure that it's sitting evenly and tightly in place.
Step 8: Tighten the Tension Roller
  • With the new belt in place, it's time to tighten the tension roller. Use your wrench to turn the bolt in the opposite direction that you used earlier, slowly increasing the tension on the belt until it's tight and secure.
  • Be careful not to over-tighten the roller, as this can cause damage to the belt or other parts of the machine.
Step 9: Lubricate the Belt
  • To ensure that your new treadmill belt runs smoothly and lasts as long as possible, it's important to lubricate it regularly.
  • Use your lubricant spray to apply a thin layer of lubricant to the underside of the belt, as well as to the rollers and deck of the treadmill.
Step 10: Replace the Motor Cover

With the new belt installed and lubricated, it's time to replace the motor cover. Simply align the cover with the motor and screw it back into place using your screwdriver.

Step 11: Test the Treadmill
  • Finally, plug the treadmill back into the wall outlet and turn it on to test the new belt.
  • Walk on the treadmill

2. Treadmill Deck

Ensure that your treadmill stays in good condition by lubricating the deck as a routine activity. There are usually warning signs, either a warping or grooves, which require the deck to be replaced.

How to Replace the Deck at Home


  • Turn Off and Unplug the Treadmill – It is true when they say safety comes first, and the best way to ensure this is to turn off the treadmill and unplug IT.
  • Loosen the Belt – Loosen the tension on the belt to access & replace the deck.
  • Unscrew the Deck – Pull up the deck and check for the screw-on coming. Do not pry it up using an Allen Wrench.
  • Remove the previous deck – Pull or raise the old deck out of the frame.
  • Fix New Deck – Screw the new deck into the frame in such a way that it will align with the screw holes.
  • Screw the Deck – After placing the deck, it should be screwed down firmly so that it does not wobble.

3. Motor

If you find your treadmill motor producing noise, is running hot, or causes the belt to jerk, then it will most probably require lubrication or replacement of the belt. In worst case scenario, you might need to change the motor itself.

When & How to Replace the Motor


  • Turn off and unplug the treadmill –The first step is always to observe some safety measures of the treadmill by pulling the plug and turning it off.
  • Remove the Motor Hood – you need to unscrew the motor hood to gain access to the motor.
  • Remove Motor Leads – Detach the motor leads by unhooking them for reassembly purposes to be noted.
  • Lift out the Motor - Unscrew the motor from the mount and take it out gently on the apples of your toes.
  • Replace the New Motor – Fix the new motor in the mount by tightening the screws.
  • Rewire – Rewire the motor according to the notes previously taken.
  • Motor check – Connect the treadmill to an outlet and power on, then run the motor and test the treadmill at different speeds for proper function.

Pro tip: When you change the motor, it is recommended to change the drive belt as well.

4. Rollers

Cleaning treadmill rollers boosts performance by reducing friction and ensuring smooth operation. Regular upkeep prevents dirt buildup and avoids noisy, uneven movement—so replace worn rollers for a better workout experience!

DIY Methods for Replacing the Rollers on Your Treadmill


  • Power off and Disconnect the Treadmill – Most treadmill instructions require that the treadmill be turned off and disconnected from the power source first.
  • Loosen the Belt – Loosen the tension on the belt to access & replace the rollers.
  • Remove Rollers – Find out where the rollers are holding the belt and then unscrew the bolts holding them.
  • Remove the Old Rollers – One should gently push out the rollers that have been fitted on the frame.
  • Pro tip: When replacing the roller or rollers, consider replacing the drive belt. The drive belt is a cheap, wear part and you won't have to double the work if it wears out shortly thereafter.
  • Fit the New Rollers – Put new rollers in the frame and make sure that they are properly screwed as a way of securing them.
  • Secure the Rollers - Tighten the bolts to secure the new rollers in place.
  • Reinstall the Belt — The next step is to reinstall the belt and set its tension using the described steps.

General Maintenance Tips

To keep your treadmill in peak condition, follow these essential maintenance tips for longevity and optimal performance.

Regular Cleaning

Keep your treadmill running smoothly by cleaning it with a soft, dry cloth preferably a microfiber cloth after every use. Deep clean monthly to tackle dust in hard-to-reach spots for longevity.

Lubrication

Keep your treadmill running smoothly! Apply World Famous Treadmill Lube and stay worry free for up to a year.

Inspection

Regular inspections catch issues early! Look for loose bolts, frayed belts, and unusual noises. Listen for squeaks and grinding, and check for wear—these signs mean it’s time for maintenance!

Proper Usage

Follow manufacturer guidelines to maximize your treadmill’s lifespan! Stick to the weight limit, avoid misuse like jumping or running on side rails, and enjoy safe, effective workouts for years to come.

In conclusion, treadmill care is crucial for avoiding hitches throughout your exercise regime. With replacement parts such as the treadmill drive belt, deck, motor as well as rollers, you can be assured of an efficient machine throughout its service period. Wiping, lubricating and regular checkups are other recommendations on how to maintain your treadmill.

If you require further assistance or instructions, please feel free to consult with the expert team Treadmill Doctor.


About the author

Admin

Let's set the record straight : we're not actually doctors, much as our mom would love to brag otherwise. We're two brothers from Olive Branch, MS, who have an MBA, an MDiv, and a Master's in Political Science between us-but no MD.

Over the years though, we've certainly earned our specialties in "elliptretics" and "treadmllology" - and Clark really did start out by using a stethoscope to diagnose faults with treadmills ( hence the company name).

In fact, we've been in this industry since Clark was still In school in 1987 - when the commercial fitness equipment Industry was only a few years old. And It's no longer just us two: today we're a team of 32 fitness- equipment enthusiasts, - all devoting our lives to keeping your machines in peak condition.