How is a belt adjusted that is running out to one side?

When a belt is running out to one side, the primary method to correct its alignment is to square up the head and tail pulleys. Proper alignment of the pulleys is essential in ensuring that the belt travels straight along its intended path. If the pulleys are misaligned, the belt can favor one side as it moves, leading to excessive wear and potential failure over time.

Adjusting the pulleys involves physically repositioning them to ensure they are aligned parallel to each other and level. This can usually be done by adjusting the mounting brackets or supports of the pulleys, allowing the belt to track correctly in the center.

The other options typically do not address the core issue of misalignment. Adding another snub pulley may create additional tension or change the belt path but does not solve the fundamental problem of the original pulley alignment. Heating the belt to stretch it is not a standard practice for alignment issues and can damage the belt or alter its properties in undesirable ways. Removing the breaker ply doesn't contribute to solving alignment problems and might weaken the belt unnecessarily. Therefore, adjusting the head and tail pulleys to ensure they are square is the most effective and appropriate solution for a belt that is running out to one side.