Question about Ingersoll Rand Electric Driven Two Stage Air Compressor 2475N5

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Hi i have an Ingersoll rand 80 gal, 7.5 hp, model #2475 air compressor and the electric motor is arcing when trying to run then blows the breaker. Any ideas? thanks

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It sounds like either a problem with the brushes in the motor or the engine shaft is jammed. Have you on many previous occasions run the compressor on that circuit with no problems? It may be as simple as the breaker is not sufficient for the power draw of the compressor.

If you have had the unit for awhile and it has been run lots and the engine shaft spins easily when turned by hand (unplug first) then it may be an issue with the brushes on the electric motor. Take the engine apart and replace the brushes with new ones from an electric motor shop. Take pictures as you disassemble the unit so you will be able to refer to them when it comes time for reassembly.

If the motor shaft does not turn by hand, remove the belt that connects it to a compressor and try again. If this works, reconnect the power and see if the electric motor now works with power on and the belt off. If the motor works and there is no short to throw the breaker, then your compressor is in need of a rebuild and that will cost money and time.

Posted on Mar 15, 2011

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Posted on Jan 02, 2017

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