PS900, PS1100 Treadmill Owner’s Guide
36
Treadbelt Tension
S: C M
Turn both rear roller adjustment bolts counter-clockwise until
the treadbelt just begins slipping when walking on it, then turn
both rear roller adjustment bolts clockwise in equal quarter turn
increments until the treadbelt stops slipping.
Note: Be sure to run on treadbelt to ensure that the it does not
shift while under load.