What is the maximum brake accumulator pressure?

• A. 3000 psi
• B. 3500 psi
• C. 3600 psi
• D. 4000 psi

Answer: (B)

Brake accumulators store hydraulic energy to supply braking power when needed, especially during rapid or high-demand braking. The system is designed to charge these accumulators to a safety limit, preventing over-pressurizing the components. That limit is three thousand five hundred psi; exceeding it would push the hardware beyond its safe operating range and trigger protective relief to vent excess pressure. So, the maximum brake accumulator pressure is three thousand five hundred psi. The other values would either be below what the system can safely store or exceed the safe design limit, risking damage or unreliable braking performance.