Replace defective components or parts

I need a step-by-step checklist for replacing a defective conveyor motor on Line 3 during the overnight shift. Include safety lockout steps, required tools, parts (motor model EM-24), torque specs, wiring checks, and a five-item test run to validate before production restart. Keep it tight so a maintenance tech can follow under time pressure.

Before I hand the checklist to maintenance, make it faster to execute: move lockout-tagout to the top, surface the three critical torque and wiring checks, flag the single failure condition that requires escalation to electrical engineering, and mark parts that must be on the overnight truck.

Maintenance replaced the defective EM-24 motor overnight but the conveyor vibration is still above tolerance. The techs confirmed torque and wiring and used the specified pulley; they couldn’t access the bearing housing fully. I worry we missed alignment or a bearing defect. What is the most likely cause and the immediate three checks the duty tech should perform before scheduling a deeper teardown?

We repeatedly do overnight motor swaps that don’t resolve vibration or downtime, forcing second visits and lost production. Where are we losing time and credibility, and recommend one pre-mobilization habit, one parts-stock change, and one diagnostic step to require before any replacement is authorized.