Precor Precision 400 Series Service Manual page 60

5 Adjustment Procedures
Input Drive and Step-up Belt Tension Adjustment
Belt alignment and tracking Verification
5. Make sure the step-up and drive belts are properly seated on the pulleys and that
they are parallel to each other with even spacing.
Contact Precor Customer Support at support@precor.com or 800.786.8404 with Page 52
any questions.