NordicTrack S3000 Treadmill English Manual - Page 23

4. SYMPTOM: THE WALKING BELT IS OFF-CENTER a. If the walking belt has shifted to the left: Remove the key and unplug the power cord. Using the included hex a key, turn each roller adjustment bolt 1/4 of a turn in the di- rection shown. Be careful not to overtighten the walking belt. Then, plug in the power cord, insert the key, and use the treadmill for a few minutes. Repeat until the walking belt is centered. b. If the walking belt has shifted to the right: Remove the key and unplug the power cord. Using the included hex b key, turn each roller adjustment bolt 1/4 of a turn in the di- rection shown. Be careful not to overtighten the walking belt. Then, plug in the power cord, insert the key, and use the treadmill for a few minutes. Repeat until the walking belt is centered. c. If the walking belt slips when walked on: Remove the key and unplug the power cord. Using the included hex c key, turn both roller adjustment bolts clockwise 1/4 of a turn. When the walking belt is properly tightened, you should be able to lift each edge of the walking belt 1 to 2 in. (3 to 5 cm) off the walking platform. The center of the walking belt should just touch the walking platform. Make sure to keep the walking belt centered. Then, plug in the power cord, insert the key, and run the treadmill for a few minutes. Repeat until the walking belt is properly tightened. 23