Star Trac TR 4500 Treadmill User Manual


 
Drive Motor Replacement
Diagram B.
Check and Adjust Belt Tension
1. Place a tension gauge onto the center of the belt and check tension. The gauge
should indicate 90 inch-pounds.
2. If you have not tension gauge, press down on top of the belt, midway between
pulleys, very hard with your thumb. The belt should deflect between 3/8 inch and ½
inch.
3. Screw the motor adjustment screw against the motor mount, moving the motor
towards the front of the treadmill pulleys to equalize tension through the belt.
4. When the gauge indicates 90 or when deflection is as specified in preceding step 1,
tighten the motor-mount nut nearest the adjustment screw.
5.4