Stairmaster 4000PT Part Replacement, How to Replace a Leveling Arm


Learn How To Replace the Level Arm on Stairmaster 4000PT.


  • Screwdrivers (Phillips and Flathead)
  • Snap Ring Pliers
  • 30W Motor Oil
  • Clean Cloth
  • Goggles


  1. Remove the pedal.
  2. Remove the side covers.
  3. Remove the snap ring that secures the leveling arm to the leveling arm shaft. CAUTION: To reduce the risk of eye injury, wear eye protection when removing snap rings.
  4. Slide or gently tap the leveling arm off the shaft.
  5. Clean the shaft and the pin with a cloth dampened with 30W motor oil before reassembly. DO NOT SAND THE SHAFT.
  6. Reverse the removal procedures to reinstall the leveling arm.
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