What is a significant hazard associated with high-pressure hydraulic systems?

High-pressure hydraulic systems pose a significant hazard primarily due to the risk of injury from fluid injection. Under high pressure, hydraulic fluids can be expelled forcefully and penetrate the skin or underlying tissues if there is a leak or a failure in the system. This can lead to serious injuries, such as lacerations, internal damage, or even life-threatening conditions, as the injected fluid can travel through the bloodstream and cause systemic issues. Awareness of this hazard is critical for anyone working with hydraulic systems, as it necessitates strict safety protocols and personal protective equipment to mitigate the risks associated with fluid injection injuries. The understanding of this danger is paramount in promoting a safe working environment in hydraulic applications.