Precor Precision 400 Series Service Manual page 127

6. Use a 1/2" wrench to loosen the drive belt idler pulley nut to remove all tension from
the input drive belt.
7. Remove the pillow block bearings, see
page 155. Retain part(s) and/or fastener(s) for installation.
8. Slide the input drive assembly through the step-up and drive belts and remove.
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
6 Available Replacement Procedures
Input Drive Belt and Step-up Belt Replacement
"Pillow Block Bearing Replacement" on
Page 119