Stairmaster Steppers 4400CL spring pulley Removal and Replacement

Jul 22, 2022

1. Remove the bottom cover.

2. Unhook the pedal arm return spring from the spring hanger.

3. Remove the snap ring from the pulley shaft

WARNING -- To Reduce the risk of eye injury, wear eye protection when removing snap rings.

4. Slide the pulley and washer off the shaft.

5. Before reinstalling the pulley, clean the pulley shaft throughly with a clean, dry cloth. Apply a thin coat of multi-purpose grease to the pulley shaft.

6. Slide the pulley and washer onto the shaft. Install the snap ring.

7. Route the spring under the spring pulley.

8. Hook the end of the spring over the spring hanger. Do not twist the spring.

WARNING: -- Do not twist the spring during installation. It will wear excessively and reduce the left of the spring

9. Reinstall the covers.