Run 5 Whys on Crusher Trips
Apply 5 Whys/root cause analysis to repeated crusher trips without stopping at symptoms.
why-ladder before-after countermeasure-card Tertiary crusher T3 trips six times overnight on high motor load after chute blockage. Problem statement -> evidence-backed whys -> process root cause -> countermeasure. The common shortcut is to stop at "blocked chute" or "wet ore." Those are real, but they do not explain why the system allowed six repeat trips without a stronger control. Before Reset the crusher, tell operators to watch wet fines, and add the delay to the shift report. After Restore the failed chute heater, add a post-maintenance functional check, and alarm heater status before wet fines build up. Define T3 tripped…
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