Pro-Form 425 CT User Manual page 24

Remove the three #8 x 3/4" Screws (1) and care-
fully pivot the Motor Hood (62) off.
62
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 retighten the Screw. Reattach the Motor Hood
(not shown) with the #8 x 3/4" Screws (not shown).
Reattach the #8 x 2" Screws (not shown) if neces-
sary. 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 both buttons. Next, 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 calibrate the incline system.
1
47
48
If the incline system does not begin calibrating,
press the Stop button, and then press the Incline
increase or decrease button again. When the
incline system is calibrated, remove the key from
the console.
SYMPTOM: The walking belt slows when walked on
a. Use only a surge suppressor that meets all of the
specifications described on page 15.
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. 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
instructed to do so by an authorized service
representative. Such substances may deterio-
rate the walking belt and cause excessive wear.
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.
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