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Electrical Troubleshooting Quiz - February 16, 2016

Suspect operator error.

The plant has a “dip and bake” operation in which parts are dipped into a varnish vat and then run through an oven tunnel to dry. This is all on a conveyor; the parts hang on hooks.

The conveyor motor is the frequent subject of calls to the maintenance department. Most of the failures occur on third shift, but some occur early on the first shift. A recording digital multimeter (DMM) found no power spikes, the motor is correctly sized for the application, and no varnish h

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