Pro-Form 515 Tx Treadmill User Manual page 22

Next, remove the three #8 x 3/4" Screws (1), and
carefully pivot the Motor Hood (62) off.
Locate the Reed Switch (73) and the Magnet (47)
on the left side of the Pulley (48). 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
(18), move the Reed Switch slightly, and then re-
tighten the Screw. Reattach the Motor Hood (not
shown). Reattach the #8 x 2" Screws (not shown)
if necessary. Run the treadmill for a few minutes to
check for a correct speed reading.
Top
View
1/8 in.
18
73
SYMPTOM: The incline of the treadmill does not
change correctly
a. Hold down the Stop button and the Speed increase
button, insert the key into the console, and then
release the Stop button and the Speed increase
button. Press the Stop button and then press the
Incline increase or decrease button. The treadmill
will automatically rise to the maximum incline level
and then return to the minimum level. This will re-
calibrate the incline system. If the incline does not
begin calibrating, press the Stop button again, and
then press the Incline increase or decrease button
again. When the incline is calibrated, remove the
key from the console.
1
62
47
48
SYMPTOM: The walking belt slows when walked on
a. Use only a single-outlet surge suppressor that
meets all of the specifications described on page
14.
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 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 run the
treadmill for a few minutes. Repeat until the walk-
ing belt is properly tightened.
b
2–3 in.
Idler Roller Screws
c. If the walking belt still slows when walked on, see
the front cover of this manual.
22