Commit to a Pre-Run JHA
Commit to completing a three-line JHA before a CNC setup or restart.
Complete a three-line Job Hazard Analysis before one real CNC setup, restart, or first-cycle proof. CNC setup safety gate for heavy stock loading, fixture change, dry run, chip clearing, coolant alarm, guard issue, probing, or restart after abnormal condition Before I start [specific CNC setup/restart], I will write three JHA lines. Step 1: [task step] -> hazard [what could release energy, pinch, cut, eject, or expose] -> strongest feasible control [fixture, guard, lift aid, procedure, PPE as last layer]. Step 2: ____. Step 3: ____. I will change the setup if the control is only attention or PPE. In 3…
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