LifeSpan Bullet Owner's Manual page 26

NOTE: When properly tightened, you should be able to peel the very edge of the side of the belt up approximately
2 inches. However this is a rough reference and not all treadmills are the same. Some treadmills that have longer
belts may give different measurements for correct belt tightness.
Simply, if the belt begins to slip during use, this is an indication that the belt still needs tightening.
Video Tutorial Available at:
http://youtu.be/vllsamTSvvA
Lifespan Fitness Channel:
http://www.youtube.com/user/treadmillsvideos
26
BULLET