Every few days, a 40 hp motor blows its overloads. These have been verified as being the correct size. The maintenance manager suspected the branch circuit breaker was faulty, so had that tested but it's fine. The motor drives a mixer tank impeller. Wet and dry materials come into the tank and mix for ten minutes. The mixed solution is sprayed onto a fixture that passes along to the next step in production. If the motor is down for long, the fixture becomes clogged. It takes a full shift to restore production.
How can you find out what’s going on?
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