Pro-Form C 990 User Manual page 31

Next, locate the
Reed Switch
(104) and the
Magnet (102)
on the left side
of the Pulley
(49). 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 in. (3 mm). If necessary,
loosen the #8 x 3/4" Truss Head Screw (14), move
the Reed Switch slightly, and then retighten the
Truss Head Screw. Reattach the Motor Hood (not
shown), and run the treadmill for a few minutes to
check for a correct speed reading.
SYMPTOM: The walking belt slows when walked on
a. If an extension cord is needed, use only a 3-conduc-
tor, 14-gauge (2 mm 2
5 ft. (1.5 m).
b. If the walking belt is overtightened, treadmill per-
formance may decrease and the walking belt may
become damaged. Remove the key and UNPLUG
THE POWER CORD. Using the hex key, turn both
idler roller screws (A) 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 in. (5 to 7 cm) off the walking platform.
Be careful to keep the walking belt centered. Then,
plug in the power cord, insert the key, and walk on
the treadmill for a few minutes. Repeat until the
walking belt is properly tightened.
b
2–3 in.
A
1/8 in.
104
14
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) cord that is no longer than
c. Your treadmill features a walking belt coated with
high-performance lubricant. IMPORTANT: Never
apply silicone spray or other substances to
the walking belt or the walking platform unless
102
instructed to do so by an authorized service
representative. Such substances may deterio-
rate the walking belt and cause excessive wear.
49
If you suspect that the walking belt needs more
lubricant, see the front cover of this manual.
d. If the walking belt still slows when walked on, see
the front cover of this manual.
SYMPTOM: The walking belt is not centered
between the foot rails
a. IMPORTANT: If the walking belt rubs against
the foot rails (A), the walking belt may become
damaged. First, 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 counterclockwise 1/2 of a turn. Be
careful not to overtighten the walking belt. Then,
plug in the power cord, insert the key, and walk on
the treadmill for a few minutes. Repeat until the
walking belt is centered.
a
31
A