Vision Fitness T8100 - Manual (Page 31)

30 PART 4 Maintenance
If Belt is too far to the left side:
1) Turn the left roller bolt 1/4 turn clockwise (tighten)
2) Turn the right roller bolt 1/4 turn counterclockwise
(loosen)
If Belt is too far to the right side:
1) Turn the right roller bolt 1/4 turn clockwise (tighten)
2) Turn the left roller bolt 1/4 turn counterclockwise
(loosen)