IMPETUS iT 4500, User Manual

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8. Running Belt Adjustment:
A. Running Belt Tension Adjustment
Factors affecting the running belt alignment:
a. Whether the treadmill is on a level surface?
b. Since your foot impacts the belt with uneven forces, the belt
may lose the alignment over time; the treadmill should be kept
running for a while after the workout, so that the belt may
adjust itself back to its original alignment;
c. Whether the belt tension is well maintained?
Note: the running belt tension should be adjusted only by adjusting the rear roller bolts of the
treadmill. Do not adjust the front rollers bolts on your own; please consult your dealer for
assistance if the front roller bolts need to be adjusted.
How to adjust the running belt tension:
a. Pay attention to the belt tension so that the treadmill can be operated smoothly on a level
surface and to prevent the damage to the parts.
b. When you feel the belt is slipping under your feet, it means you may need to adjust its tension.
c. To increase the tension, use the L type wrench to turn both rear roller adjustment bolts
clockwise by 1 turn.
d. To decrease the tension, use the L type wrench to turn both rear roller adjustment bolts
counter-clockwise by 1 turn.
If the above steps cannot improve the tension and prevent slippage, the motor drive belt may
need to be adjusted, please consult your dealer for assistance.
Caution: Do not over tighten the belt, otherwise not only the running belt may be worn out easily,
the roller bearing can also be damaged over time due to the extra tension pressure.
B. Running Belt Alignment
The running belt should be kept at the center position to ensure a smooth operation and to
prevent any worn out. When the running belt is off-centered, the belt needs to be manually
adjusted and aligned.
How to Align the Belt:
A. Keep the treadmill running at the speed of 4-6 km/h, when the belt
has shifted to the left:
a. Use the L type wrench to turn the left rear roller bolt clockwise ½ of a
turn;
b. If more adjustment is needed, turn the right rear roller bolt counter-
clockwise ½ of a turn;
c. If more adjustment is still needed, repeat the above two steps, but turn
only at ¼ of a turn.
B. Keep the treadmill running at the speed of 4-6 km/h, when the belt
has shifted to the right:
a. Use the L type wrench to turn the right rear roller bolt clockwise ½ of a
turn;
b. If more adjustment is needed, turn the left rear roller bolt counter-
clockwise ½ of a turn;
c. If more adjustment is still needed, repeat the above two steps, but turn
only at ¼ of a turn.
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