How to track a conveyor belt using snub rollers

David talks about the functions of the 5 snub rollers found on most Hytrol conveyor models (RB, TA, TH, ABEZ, ABLR). The snub roller that the belt goes around right before the end pulley has a greater tracking affect than the snub that the belt goes around right after the end pulley. When comparing the the snubs near the two end pulleys and considering the belts direction of flow, you'll notice the difference between belt-over-roller (or slider bed) and belt-under-roller models. The snub near the INFEED pulley has a greater tracking affect on slider bed (TA, TH) or belt-over-roller (RB). But for belt-under-roller models (ABEZ, ABLR), the snub near the DISCHARGE pulley has a greater tracking affect. This is because the belt runs one way for TA, TH, and RB; and it runs the opposite direction for ABEZ and ABLR.