OSHA 10-Hour Construction ReviewTools - Hand and PowerHard
A worker is operating a hydraulic press, and the pressure gauge indicates a sudden and significant drop while under load. What is the most immediate and appropriate safety response?
- AImmediately attempt to increase the hydraulic fluid level in the reservoir.
- BContinue the operation cautiously while observing the gauge for stabilization.
- CStop the operation, secure the load (if applicable), and shut down the hydraulic system.
- DCheck all hydraulic hose connections for tightness and leaks while the system is still running.
Show answer & explanationAnswer & explanation
Correct answer: C. Stop the operation, secure the load (if applicable), and shut down the hydraulic system.
A sudden drop in hydraulic pressure under load indicates a potential system failure, such as a leak or internal component malfunction, which could lead to a catastrophic loss of load. The most immediate and appropriate response is to stop the operation, secure the load to prevent collapse, and shut down the system to prevent further damage or injury.
Why the other options are wrong
- A. Adding fluid while under load and with a potential leak is dangerous and won't address the underlying problem.
- B. Continuing operation with a sudden pressure drop is extremely hazardous and could lead to equipment failure or injury.
- D. Checking connections while the system is running and potentially failing is dangerous, as a hose could burst or disconnect under pressure.
Hydraulic System Pressure Drop
A sudden drop in hydraulic pressure under load indicates a potential system failure; immediately stop operation, secure the load, and shut down the system.
- Can result from leaks, pump failure, or valve malfunction.
- Risks include catastrophic load collapse and equipment damage.
- Prioritize load security and system shutdown for safety.
Memory trick: Pressure drops, then stop, secure, and chop the power!