Pedal Replacement - Stairmaster SC 916 Technical Manual

Step Chains / Return Spring Replacement
1. Support the pedal arm. Unhook the pedal arm return spring from the spring hanger. Lift the step chain
up and off the clutch sprocket and lower the pedal arm to the floor.
2. Detach the spring from the step chain by removing the master link. The spring-chain connector is in
good condition if it has an hour glass shape. Replace a worn spring-chain connector.
3. Remove the double-pitch master link and bearing sleeve assembly from the step chain connection point
on the pedal arm.
4. Remove the master link from the spring-chain connection.
5. Check to ensure that the spring pulley turns freely and is not worn excessively. Replace spring pulley
as necessary.
6. To reinstall the spring, connect it to the end of the step chain using the master link.
7. Connect the double-pitch master link and bearing sleeve assembly from the step chain connection point
on the pedal arm.
8. Route the spring under the spring pulley that is fastened to the spring pulley shaft.
9. Hook the end of the pedal arm return spring onto the spring hanger.
10. Test the machine for proper operation

Pedal Replacement

1. Remove the snap ring and flat washer from the leveling arm pin and the pedal shaft.
2. Slide the pedal off the shaft.
3. Clean the pedal shaft and leveling arm pin with a dry cloth. Lubricate the pedal shaft and the leveling
arm pin with a thin coat of multipurpose grease.
4. Reverse the procedures to reinstall the pedal.
Leveling Arm Replacement
1. Remove the machine's covers.
2. Remove the snap ring that secures the leveling arm to the leveling arm shaft.
3. Slide or gently tap the leveling arm off the shaft.
4. Clean the shaft and the pin with a cloth dampened with 30W motor oil before reassembly.
5. Reverse the removal instructions to reinstall the leveling arm.
Last revised 10/19/15