Locate the Reed Switch (18) and the Magnet (101) on
the left side of the Pulley (78). Turn the Pulley until the
Magnet is aligned with the Reed Switch. Make sure
that the gap between the Magnet and the Reed
Switch is about 1/8”. If necessary, loosen the 3/4”
Screw (24) and move the Reed Switch slightly.
Retighten the Screw. Re-attach the hood, and run the
treadmill for a few minutes to check for a correct
speed reading.
PROBLEM: The walking belt slows when walked on
SOLUTION: a. Use only a single-outlet surge suppressor that meets all of the specifications described on page 8.
b. If the walking belt is overtightened, treadmill perfor-
mance may decrease and the walking belt may be-
come damaged. Remove the key and UNPLUG THE
POWER CORD. Using the allen wrench, turn both
rear roller adjustment bolts counterclockwise, 1/4 of a
turn. When the walking belt is properly tightened, you
should be able to lift each side of the walking belt 3 to
4 inches off the walking platform. Be careful to keep
the walking belt centered. Plug in the power cord, in-
sert the key, and run the treadmill for a few minutes.
Repeat until the walking belt is properly tightened.
c. If the walking belt still slows when walked on, please call our toll-free Customer Service Department.
PROBLEM: The walking belt is off-center or slips when walked on
SOLUTION: a. If the walking belt is off-center, first remove the key
and UNPLUG THE POWER CORD. If the walking
belt has shifted to the left, use the allen wrench to
turn the left rear roller bolt clockwise 1/2 of a turn; if
the walking belt has shifted to the right, turn the
bolt counterclockwise 1/2 of a turn. Be careful not to
overtighten the walking belt. 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, first remove
the key and UNPLUG THE POWER CORD. Using
the allen wrench, turn both rear roller bolts clockwise,
1/4 of a turn. When the walking belt is correctly tight-
ened, you should be able to lift each side of the walk-
ing belt 3 to 4 inches off the walking platform. Be
careful to keep the walking belt centered. 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.
PROBLEM: The incline of the treadmill does not change correctly or does not change when iFIT.com
CDs and videos are played
SOLUTION: a. With the key inserted in the console, press one of the Incline buttons. While the incline is
changing, remove the key. After a few seconds, re-insert the key. The treadmill will automati-
cally rise to the maximum incline level and then return to the minimum level. This will recalibrate
the incline.
Rear Roller Adjustment Bolts
3”–4”
b
b
a
101
18
24
1/8”
78
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Summary of Contents for 520x
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