6.3HOW TO ADJUST AND TENSION THE STRIDING BELT ON THE LIFE FITNESS TREADMILL
Do not move treadmill or place hands under treadmill while it is plugged into an electrical outlet!
Tool required: 5/16" hex key wrench
THE BELT TENSIONING BOLTS
The Life Fitness treadmill has access holes in the rear roller guards, which allow access to the tensioning bolts. These tensioning bolts make it possible to adjust tracking and centering of the striding belt (A) without removing the guards.
NOTE: It is extremely important that the treadmill be correctly leveled prior to any tracking adjustments. An unstable unit may cause striding belt misalignment. See "How To Stabilize the Life Fitness Treadmill" in the "Set Up" section prior to attempting any rear roller adjustments.
Before proceeding, it is helpful to visualize the REAR ROLLER (B) pivot point (C). Each adjustment made to one side of the ROLLER must be met with an equal and opposite adjustment (D) to the other side of the ROLLER to maintain an ideal belt tension at the pivot point.
A 
C
D 
D
B
TRACKING (CENTERING) AN EXISTING OR NEW STRIDING BELT
1Locate the two access holes to the belt tensioning bolts on each of the rear roller guards.
2Stand on the sides of the treadmill and straddle the belt, not standing on it. Enter the Manual Workout and set the belt speed to run at 4.0 mph (6,4 kph).
3If the striding belt has moved to the right, turn the right tension bolt 1/4 turn clockwise with provided ¼” Allen wrench, and then turn the left tension bolt 1/4 turn
4If the striding belt has moved to the left, turn the left tension bolt 1/4 turn clockwise and then turn the right tension bolt 1/4 turn
NOTE: Do not exceed one full turn of the adjusting screws in either direction. If after one full turn the belt does not track properly, contact Customer Support Services. The phone numbers are listed in "How to Obtain Product Service."
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