How to Troubleshoot Resistance on Pro Form 900

The ProForm 900 is a rear-drive, compact, in-home elliptical machine. It offers three stride lengths, eight preset workout programs and 10 levels of magnetic pedal resistance. If you notice that the pedals are slipping when you are using the machine, even if you have the resistance turned all the way up to 10, you need to adjust the drive belt. You will have to remove the pedal assembly and both side shields to access the belt.

Things You'll Need

  • Phillips screwdriver
  • Flat-head screwdriver
  • Wrench
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Instructions

    • 1

      Use the Phillips screwdriver to remove the screw that holds the pedal assembly on the right pedal disc, then pull the pedal assembly completely off the pedal disc.

    • 2

      Remove the four screws from the right pedal disc and slide the disc off the elliptical machine.

    • 3

      Remove the nine screws in the right side shield and pull the shield completely off the machine. Remove the left pedal assembly, pedal disc and shield in the same manner.

    • 4

      Locate and loosen the flat-head screw on the left side of the flywheel. Turn the bolt beneath the screw clockwise until the drive belt is tight. There should not be any slack in the belt.

    • 5

      Tighten the flat-head screw. Replace the side shields, pedal discs and pedal arms.