there are adjustment bolts on the back end of the treadmill. they are on either side. start with belt running about 3mph. tighten the side where the belt is closest. about 1/4 turn. give 15-20 seconds to see adjustment . when it is centered, tighten both bolts evenly until belt is tight.

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4/20/2014 4:20:53 PM • Nordic Track... • Answered on Apr 20, 2014

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How do you disassemble treadmill to move

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Be the first to answer 1/22/2014 3:01:19 AM • Nordic Track... • Posted on Jan 22, 2014 • Be the first to answer

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The speed does not work properly. it is set at 4

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Be the first to answer 1/3/2014 3:49:24 AM • Nordic Track... • Posted on Jan 03, 2014 • Be the first to answer

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Moving belt moves at the top, not the bottom

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Be the first to answer 1/1/2014 4:45:10 AM • Nordic Track... • Posted on Jan 01, 2014 • Be the first to answer

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A2550 console not working

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Be the first to answer 12/31/2013 3:33:35 AM • Nordic Track... • Posted on Dec 31, 2013 • Be the first to answer

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Nordic track A2550 Pro turns on but doesn't move

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Be the first to answer 12/10/2013 7:04:15 PM • Nordic Track... • Posted on Dec 10, 2013 • Be the first to answer

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TREADMILL KICKS ON AT VERY HIGH SPEED OVER THE 12

please RUN the software calibration for easy diagnostic, and fix it.go under the HOOD motor and see the steps. However see the steps. The Steps for Newer Style Console Calibration:

Locate the calibration area on the rear or underside of the console (a hole, near the console's center, that goes through to the electronics board. (This hole should not have a screw in it.)
Insert a pencil (eraser end), into the hole and feel around for the cal button (will click when pressed).
Press the button 2 times (with the pencil eraser). The first click should show CL11 in the console, the second click should show CL21.
If the process was done correctly, and CL21 appears in the console, you are in "calibration mode." The next few steps consists of pressing buttons on the console and observing settings. This will not require any other tools.
Press ENTER. CL22 should display in the TIME window and (??) in the SPEED window.
Press ENTER. CL23 should display in the TIME window and (??) in the SPEED window.
Press ENTER. CL24 should display in the TIME window and (??) in the SPEED window.
Press ENTER. CL25 should display in the TIME window and (??) in the SPEED window.
Press ENTER. CL26 should display in the TIME window. You should then see the letter "E."
Press ENTER. You should see "SS" or "55" in the console.
Push the STOP/START button. For safety, at this point, you should step off, or be off, the treadmill.
Push the ENTER button. The walking belt should start to move, accelerate to maximum speed, then stop on its own.
When the belt stops, the incline should self test by raising to its highest incline position, then lowering back down to its lowest position.
Once the incline test is complete, push the POWER button 2 times. The unit should shut off and the console should go completely blank. If this happens, the treadmill is done calibrating and is ready for use.

If the letter "F" appears in the SPEED or INCLINE window when the power button is pressed 2 times, the treadmill is indicating a failure somewhere either in the SPEED or INCLINE (depending on the window the "F" appeared in). Troubleshooting the failure would be the next step.