Pro-Form J4 User Manual page 13

4. SYMPTOM: THE WALKING BELT SLOWS WHEN WALKED ON
a. Use only a UL-listed surge protector, rated at 15 amps, with a 14-gauge cord of five feet or less in length.
b. If the walking belt is overtightened, treadmill performance may
decrease and the walking belt may be permanently damaged.
Remove the key and UNPLUG THE POWER CORD. Using the
allen wrench, turn both rear roller adjustment bolts counterclock-
wise, 1/4 of a turn. When the walking belt is properly tightened,
you should be able to lift each side of the walking belt 2 to 3
inches off the walking platform. The center of the walking belt
should just touch the walking platform. Be careful to keep the
walking belt centered. Plug in the power cord, insert the key and
run the treadmill for a few minutes. Repeat until the walking belt
is properly tightened.
Rear Roller Adjustment Bolts
c. If the walking belt still slows when walked on, please call our toll-free HELPLINE.
5. SYMPTOM: THE WALKING BELT IS OFF-CENTER WHEN WALKED ON
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 over-
tighten 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 centered.
b. If the walking belt has shifted to the right, first remove the
key and UNPLUG THE POWER CORD. Using the allen wrench,
turn the left rear roller adjustment bolt counterclockwise, and the
right bolt clockwise, 1/4 of a turn each. Be careful not to over-
tighten 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 centered.
c. 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 correctly tightened, you should be able
to lift each side of the walking belt 2 to 3 inches off the walking
platform. Be careful to keep the walking belt centered. Plug in
the power cord, insert the key and run the treadmill for a few
minutes. Repeat until the walking belt is properly tightened.
6. SYMPTOM: THE INCLINE SYSTEM STICKS
a. Raise the treadmill to the storage position. See HOW TO FOLD THE TREADMILL FOR STORAGE on page
10. Pivot the incline leg several times to break in the incline system.
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