If one of the matched set of 3V belts becomes badly frayed, what is the best course of action?

When a matched set of 3V belts is in use, they are designed to work together for even wear and optimal performance. If one belt in the set becomes badly frayed, replacing only that single belt may lead to uneven performance and increased stress on the new belt and the remaining old belts, which could lead to premature wear or failure of the entire system.

By replacing the whole set of belts, you ensure that they all have the same level of wear and are capable of working together efficiently. This proactive approach not only maintains reliability but also minimizes the risk of future breakdowns and maintenance issues. Continual use of a compromised belt or repairing it could lead to misalignment or further damage to the system, which could result in more costly repairs or replacements down the line. Therefore, replacing the entire set of belts is the most effective course of action to uphold the integrity and functionality of the equipment.