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Product Technical Bulletin from Nautilus Nautilus Treadmills Belt Adjustment / Belt Tracking Treadmill Belt Adjustment Nautilus Treadmill Models T912 T914 T916 You will need a 13mm Metric Socket. Belt Tension Test the belt tension by running on the belt at about 4-mph. Hold the handrail lightly and resist the belt movement with your feet.
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Product Technical Bulletin from Nautilus Treadmill Belt Tracking Perform this procedure whenever the belt moves to one side or the other. Stay off the belt when adjusting the tracking. Start the treadmill at minimum speed and incline. Increase speed to 5 mph and make the following adjustment. The figure above shows the location of the bolts: If the belt moves to the right, turn the right tension bolt 1/4-turn clockwise.
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