ProForm 635 User Manual page 24

PROBLEM: The walking belt slows when walked on
SOLUTION: a. If an extension cord is needed, use only a 3-conductor, 1 mm
than 1.5 m (5 ft.).
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 7 to
10 cm (3 to 4 in.) off the walking platform. Be careful to
keep the walking belt centred. 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, please call our Customer Service Department.
PROBLEM: The walking belt is off-centre
SOLUTION: a. If the walking belt has shifted to the left, first remove
the key and UNPLUG THE POWER CORD. Using the
allen wrench, turn the left rear roller adjustment bolt
clockwise, and the right bolt counterclockwise, 1/4 of a
turn each. Be careful not to overtighten the walking belt.
Plug in the power cord, insert the key and run the tread-
mill for a few minutes. Repeat until the walking belt is
centred.
b. If the walking belt has shifted to the right, first re-
move the key and UNPLUG THE POWER CORD.
Using the allen wrench, turn the left rear roller adjust-
ment bolt counterclockwise, and the right bolt clockwise,
1/4 of a turn each. 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 centred.
PROBLEM: The walking belt slips when walked on
SOLUTION: a. 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 adjustment bolts
clockwise, 1/4 of a turn. When the walking belt is cor-
rectly tightened, you should be able to lift each side of
the walking belt 7 to 10 cm (3 to 4 in.) off the walking
platform. Be careful to keep the walking belt centred.
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.
24
2 (14-gauge) cord that is no longer
b
7–10 cm
Rear Roller Adjustment Bolts
a
b
a