LifeSpan Viper M4 User Manual page 26

5. CENTERING THE RUNNING BELT
Place the treadmill on level ground and set it at 6-8kph to check if the Running Belt drifts.
1. If the Running Belt moves to the right, turn the
adjusting bolt on the right side ¼ turn clockwise,
then turn the left adjustment bolt ¼ turn counter
clockwise. If the belt does not move, repeat this
step until it centers. Refer to figure A.
2. If the Running Belt moves to the left, turn
the adjusting bolts on the left side ¼ of a turn
clockwise, then turn the right adjustment bolt ¼
turn counterclockwise. If the belt does not move,
repeat this step until it centers. Refer to figure B.
3. Over time the Running Belt will loosen. To tighten
the belt, turn the Left & Right-side adjustment
bolts one full turn clockwise, check the tension of
the belt. Continue this process until belt is at the
correct tension. Make sure to adjust both sides
equally to ensure correct belt alignment. Refer to
figure C.
26 | MAINTENANCE INSTRUCTIONS