Advanced

Search Part Name & Description

Model= Model Name or Model Number
MPN= Manufacturer's Part Number
MFR= Numbers that are directly from the part

BLOG Details

Stairmaster Steppers 4400CL Eccentric Hub Assembly

Stairmaster Steppers 4400CL Eccentric Hub Assembly Removal and Replacement instructions.

1. Remove the bottom cover.

2. Remove the Poly-V and HTD belts.

3. Loosen and remove the four nyloc nuts and bolts from the hub. Remove the assembly from the frame.

4. Reassemble in the reverse order. Ensure the belts are properly tensioned;refer to the "Poly-V and HTD belt" section.