A stopped machine retains hazardous energy
A worker stops a conveyor before clearing a jam and assumes it is safe because the drive motor is silent. The mechanism includes a raised load and stored pneumatic pressure, and a neighboring operator could restart the line. The guard interlock has not been verified after a recent modification. A supervisor suggests that pressing the emergency stop is enough for every maintenance task, while another worker proposes bypassing the guard to finish faster. The exercise supplies no authorization to operate, isolate or test the machine. It asks for identification of hazardous energy, safeguarding limitations and the records and competent arrangements that must be established before an actual intervention.
1. What response is supported by the supplied facts?
Read the worked answer
Identify all relevant energy and restart paths, keep the hazardous intervention within the appropriate authorized safe system, and assess the modified safeguards.
2. What must not be inferred from this written scenario?
Read the worked answer
It does not authorize hazardous work or establish complete practical competence. Apply actual competent assessment, current requirements and the relevant site arrangements before real action.