ProForm 831.299450 User Manual page 20

5. SYMPTOM: THE WALKING BELT SLOWS WHEN WALKED ON
a. Use only a UL-listed surge suppressor, 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 3 to 4
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.
c. If the walking belt still slows when walked on, please call our toll-free HELPLINE.
6. SYMPTOM: THE WALKING BELT IS OFF-CENTER
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 counterclock-
wise, and the right bolt clockwise, 1/4 of a turn each. Be careful
not to overtighten the walking belt. Plug in the power cord, in-
sert 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.
7. SYMPTOM: ONE OF THE UPPER BODY ARMS SQUEAKS DURING USE
a. (Note: Correcting this problem requires a small amount of white
marine grease, available at most hardware stores.) Turn the
Resistance Knob (117) counterclockwise until it can be re-
moved. Remove the Resistance Cone (116) and the Upper
Body Arm (108), along with the Resistance Washers (118),
Spring Washer (121), Thrust Washers (119), and Thrust
Bearing (120). (Note: If the Resistance Sleeve [115] comes out
of the Resistance Bracket [113], press it back in.) Apply a thin
layer of white marine grease to the outer surface of the
Resistance Cone (116). Reattach all parts in the order shown.
b
Rear Roller Adjustment Bolts
a
b
a
a
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113
108
115
116
121
119
118
118
120
117