I have an old used compressor, Sanborn 5HP 30 Gal. tank, model ??????.
It sat around unused for a long time and I have it now. I have only used it a small amount and at first it was fine but yesterday it developed a problem. The Electric motor will start (hums) but the compressor doesn't turn over and It trips the breaker. Now if I reach under the guard I can easily pull the belt and it moves freely, If I try running it again, after I pull the belt, it usually starts working. The compressor works well and quickly builds up pressure. There is oil in the sump.
Can a compressor stop at top/bottom dead centre and would that be the problem (doubtful with an electric motor). If so why would it do it so much.
Is there another reason that it would work his way.
Right now I have to run the pressure up and then turn it off so it won't stall and trip the breaker when the pressure drops and manually start it to run up the pressure when needed. More of an inconvenience then anything so I would like to fix it if possible.
It sat around unused for a long time and I have it now. I have only used it a small amount and at first it was fine but yesterday it developed a problem. The Electric motor will start (hums) but the compressor doesn't turn over and It trips the breaker. Now if I reach under the guard I can easily pull the belt and it moves freely, If I try running it again, after I pull the belt, it usually starts working. The compressor works well and quickly builds up pressure. There is oil in the sump.
Can a compressor stop at top/bottom dead centre and would that be the problem (doubtful with an electric motor). If so why would it do it so much.
Is there another reason that it would work his way.
Right now I have to run the pressure up and then turn it off so it won't stall and trip the breaker when the pressure drops and manually start it to run up the pressure when needed. More of an inconvenience then anything so I would like to fix it if possible.
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