How to Change the Inside Belt on a ProForm Treadmill

Even if the ProForm treadmill is known as the official training machine for the Boston marathon, one of the most demanding marathons in the United States, you don’t need to be a marathoner to use a ProForm treadmill, nor do you have to be a professional to be able to change the inside belt on your ProForm treadmill when it’s time for a replacement. The inside belt connects the motor to the front roller, which in turn runs the belt that you so eagerly train on. This belt needs to be intact in order to function properly and keep your ProForm treadmill running at peak performance.

Get a drive belt replacement from the ProForm's manufacturer, ICON Health & Fitness. This way your warranty will not be affected. If you are past the warranty period, you can get a replacement belt from third parties as well.

Unplug the ProForm treadmill from the power outlet before you start working on it.

Use a Phillips screwdriver to remove the two screws located in front of the motor cover of your ProForm treadmill. Then, with the same screwdriver, remove the two screws on the sides of the motor cover. Place the screws on a small towel or plate so you don’t lose track of them.

Push the motor cover in from both sides at the same time and lift it up. Remove the motor cover and put it to the side.

Remove the lift frame bolts using the screwdriver to release the lift frame, the long steel piece bolted on both sides to the front roller. Locate the frame pivot spacer and the washers beneath it from the front roller drive wheel and bring them off.

Draw the old drive belt while pushing down the front roller to remove it from your ProForm treadmill’s front roller. Then, take it off the motor pulley.

Replace the old drive belt with the new one. First place it over the motor pulley and then slide it over the front roller.

Restore the lift frame bolts with their washers to keep the front roller in the correct position with the lift frame over it on both sides.

Restore the lift frame bolts with their washers to keep the front roller in the correct position with the lift frame over it on both sides.

Plug in your treadmill and turn it on to check to see if your treadmill is working smoothly.