What feature prevents damage to the equipment in the fully raised and fully lowered positions on the BAK-15?

The feature that prevents damage to the equipment in the fully raised and fully lowered positions on the BAK-15 is limit switches. Limit switches are designed to monitor the position of movable parts and ensure they do not exceed specified limits. In the context of the BAK-15, limit switches effectively halt the movement of the platform when it reaches its maximum height or its lowest point. This safety mechanism is crucial in preventing mechanical failures or structural damage that could occur if the equipment were to continue moving past these limits.

The other options, while related to safety and equipment stability, serve different functions. Safety guards protect operators from accidental contact with moving parts, damper systems can help to absorb vibrations or shocks during operation, and shock absorbers are intended to mitigate impact forces. However, none of these features specifically provide the positional control necessary to prevent damage in the fully raised and fully lowered positions, which is why limit switches are the most relevant and effective solution in this scenario.