ProForm 450 PFTL41105.0 User Manual page 18

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 9.
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 bolts counterclockwise, 1/4 of a turn. When
the walking belt is properly tightened, you should be
able to lift each edge of the walking belt 2 to 3 inches
off the walking platform. Be careful to keep the walk-
ing belt centered. Then, plug in the power cord, insert
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, see the front cover of this manual.
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
left bolt counterclockwise 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, 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 edge of the walk-
ing belt 2 to 3 inches off the walking platform. Be
careful to keep the walking 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.
b
Rear Roller Bolts
a
b
18
2"–3"