Question

Under a standard lock-out/tag-out (LOTO) procedure for hydraulic heavy machinery, what is the mandatory step required to dissipate stored potential energy after the power source is disconnected?

Accepted Answer

After disconnecting the power source in a hydraulic system, you must release the trapped residual hydraulic pressure. Even after the pump stops, fluid remaining in the lines acts like a compressed spring, holding enough force to move heavy components unexpectedly. To safely dissipate this energy, you must cycle the machine&#x27;s control valves or open a pressure-relief valve, which is a specialized port designed to drain excess fluid into a reservoir. Think of this like unscrewing a pressurized soda bottle cap; you are letting the trapped force escape gradually so the system remains inert while you perform maintenance. You must verify that the pressure gauge reads zero before proceeding, as this confirms the energy is fully neutralized.

Under a standard lock-out/tag-out (LOTO) procedure for hydraulic heavy machinery, what is the mandatory step required to dissipate stored potential energy after the power source is disconnected?

After disconnecting the power source in a hydraulic system, you must release the trapped residual hydraulic pressure. Even after the pump stops, fluid remaining in the lines acts like a compressed spring, holding enough fo....

Community Answers

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Under a standard lock-out/tag-out (LOTO) procedure for hydraulic heavy machinery, what is the mandatory step required to dissipate stored potential energy after the power source is disconnected?

After disconnecting the power source in a hydraulic system, you must release the trapped residual hydraulic pressure. Even after the pump stops, fluid remaining in the lines acts like a compressed spring, holding enough fo....

Community Answers