6.5 T
ROUBLESHOOTING THE LIFEPULSE SYSTEM SENSORS
If the heart rate reading is erratic or missing, do the following:
• Dry the hands if necessary to prevent slipping.
• Apply hands to all four sensors, located at the front and back of the hand grips.
• Grasp the sensors firmly.
• Apply constant pressure around the sensors.
6.6 HOW TO
ADJUST AND TENSION THE STRIDING BELT
Do not move treadmill or place hands under treadmill while it is plugged into an electrical outlet!
THE BELT TENSIONING BOLTS
A 5/16-inch hex key wrench is required for this task. 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 the 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
the topic titled "How To Stabilize the Life Fitness
Treadmill" in the Section 1.2, titled Set Up, 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.
TRACKING (CENTERING) A STRIDING BELT
Two people are needed to perform this procedure.
1 Locate the two access holes to the belt tensioning bolts on each of the rear roller guards.
2 One person stands on the side rails of the treadmill and straddles the belt. This person presses
the MANUAL workout and sets the belt speed to 2.5 MPH (4.0 KPH).
3 If the striding belt has moved to the right, the second person turns the right tension bolt a quarter-
turn clockwise and then turns the left tension bolt a quarter-turn counter-clockwise to make the
striding belt track back to the center of the roller.
If the striding belt has moved to the left, turn the left tension bolt a quarter-turn clockwise and then
turn the right tension bolt a quarter-turn counter-clockwise to make the striding belt track back to
the center of the roller.
4 Repeat the adjustments until the striding belt appears centered. Allow the machine to continue
running for several minutes at 4.0 MPH. (6.4 KPH) to observe if tracking remains
stabilized.
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 Section 6.7, titled How to Obtain Product Service.
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