Many modern treadmills come equipped with a motor unit that serves to drive the machine's walking belt. This is accomplished through the use of a rubber belt that connects a pulley wheel on the motor to one end of the walking belt's front roller. Occasionally, the drive belt in your treadmill may break or slip out of alignment; to correct the problem, you will have to disassemble part of the treadmill's base to gain access to the motor unit.
Step 1
Remove all the screws or bolts securing the motor housing to the treadmill's base, and then lift the housing free of the base. Set it aside. Remove the two bolts located at the rear of the treadmill's deck, and then pull the end caps free of the deck. Remove the screws securing the side panels to the top of the deck. Lift the side panels off, and set them aside.
Step 2
Remove the screws or bolts securing the front roller in place. Lift the front roller up and slide the drive belt free of the pulley end of the roller. Remove the drive belt from the treadmill's motor pulley. Examine the belt for cracks, tears and other signs of wear or damage. If necessary, discard the old belt and select a new one.
Step 3
Fit one end of the drive belt over the motor pulley. Insert the pulley end of the roller into the belt. Seat the front roller back into its mounting brackets and secure it back into place. Examine the drive belt and confirm that you have centered it properly on each pulley.
Step 4
Place one hand on the portion of the belt attached to the motor pulley. Push the drive belt forward to spin the pulley. Confirm that the belt will move properly when the pulleys are in motion. Move to the rear of the treadmill's deck. Spin the rear roller until the holes on its axle are parallel to the ground.
Step 5
Replace the side panels, and use the previously removed screws to secure them back into place. Fit the end caps onto the rear of the deck, and then slide the bolts through the openings on the caps, into the holes on the rear roller. Tighten the bolts until the walking belt reaches the desired tension level. Replace the motor housing, and use the previously removed screws or bolts to secure them back into place.
Things You'll Need
- Phillips screwdriver
- Allen wrench
- Replacement drive belt (optional)
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