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SYMPTOM: The walking belt is off-center or slips
when walked on
a. If the walking belt is off-center, rst remove the
key and UNPLUG THE POWER CORD. If the
walking belt has shifted to the left, use the hex
key to turn the left idler roller screw clockwise 1/2
of a turn; if the walking belt has shifted to the
right, turn the left idler roller screw counterclock-
wise 1/2 of a turn. Be careful not to overtighten the
walking belt. Then, plug in the power cord, insert
the key, and run the treadmill for a few minutes.
Repeat until the walking belt is centered.
b. If the walking belt slips when walked on, rst re-
move the key and UNPLUG THE POWER CORD.
Using the hex key, turn both idler roller screws
clockwise, 1/4 of a turn. When the walking belt is
correctly tightened, you should be able to lift each
edge of the walking belt 2 to 3 in. (5 to 7 cm) off
the walking platform. Be careful to keep the walk-
ing belt centered. Then, plug in the power cord,
insert the key, and carefully walk on the treadmill
for a few minutes. Repeat until the walking belt is
properly tightened.
a
b