What weight will activate the down-over travel interlock?

The down-over travel interlock is a safety feature designed to prevent equipment from operating beyond its designated limits, which can happen if excessive load is applied. The activation of this interlock is generally calibrated to a specific weight threshold that is determined to be safe for the equipment's operation.

In this case, a weight of 15 lbs is the correct threshold for activating the down-over travel interlock. This indicates that if a load exceeding this weight is detected, the interlock will engage to stop further movement, thus preventing potential damage to the equipment or causing unsafe working conditions.

The choice of 15 lbs as the activation weight suggests careful engineering consideration around the safe operating limits of the equipment, ensuring that even slight excess loads can trigger safety mechanisms to protect both the machinery and the operators. Options outside of this, such as 10 lbs, would not provide sufficient safety margin, and higher weights like 20 lbs and 25 lbs could pose risks of equipment damage before safety measures are activated.