time to lube the DECK belt, use WD-40 or grease. do it by each weeks. Try to loose the deck belt. in the way that you lift the belt by 2" with your finger. Otherwise, you must replace the belt+deck. See if the belt drive is to tight. And take time for maintenance the motor, replace the carbon brush+and lube the bearing.
Question edited for clarity and correct name of maker.
Question moved from Tablets to maker category.
Contact Nordic Track with a view to returning it under warranty, or out of warranty repair.
https://www.google.com/search?q=Nordic+Track
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Please note that these instructions don't apply to all models of treadmills. Many recent models, including all models with touchscreen consoles, do not have the capability for the user to calibrate the speed.
Speed calibration is a process that is used to correct imbalances in the machine's operating speed.
Please note that this procedure involves pushing the machine to its maximum speed very quickly. Do NOT stand on the treadmill while performing this procedure.
First, you need to enter calibration mode on the console. To do this, press and hold the STOP and SPEED INCREASE buttons (this will be either an up arrow or a + (plus) symbol). While holding these buttons, insert the safety key onto the console. This will cause the machine to go into calibration mode. After this has occurred, you may let go of the buttons and the safety key.
Next, press the stop button once. This will enter advance the screen to the next feature of calibration mode. As said previously, do not stand on the treadmill while performing this procedure. Press and hold the speed increase button. Watch the console. You will see a number on the display that will increase as you hold the speed increase button. Continue to hold the speed increase button until the number changes to "85." This will take the treadmill to its maximum speed, which will also be displayed on the console. Please note that the example below only demonstrates the console displaying "85", not the treadmill's operating speed.
ever think about asking Nordic track I have never had any need of a machine to walk on .. I go fishing and used to walk over 3 miles daily doing what I love outdoors in the sunshine .even things with a woman .