Sportcraft Tx 2.5 Treadmill User Manual | Top 50 Essential |

This is a tracking issue. The manual provides a "live tracking adjustment" procedure: run the treadmill at 3 mph, then turn the left rear roller bolt 1/8 turn clockwise. Wait 30 seconds. The belt should self-center. Never adjust tracking at high speeds.

Your Sportcraft TX 2.5 treadmill features: sportcraft tx 2.5 treadmill user manual

Turn to the "Belt Tension" diagram. Locate the two rear roller adjustment bolts. Using the included Allen wrench, turn both bolts exactly 1/4 turn clockwise. Test. Repeat if necessary. Warning: The manual warns that over-tensioning burns out the drive motor. This is a tracking issue