919.177150 Craftsman oil leak

by nancy elder
(baldwin park, ca)

Craftsman 2 stage Air compressor 5hp 80 gal OIL PLUG LEAK


Its leaking oil from the oil plug whick means crank case is plugged somewhere. can you help in where i should start to look?
no complaint just question.
thank you
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Hi Nancy...

The oil plug you refer to, is it the oil drain plug? If so, it may just be loose. If oil is dripping from the drain plug, it does not necessarily follow that the crank case is plugged.

Or, if the oil is coming out of the oil fill plug, that suggests to me that the piston seals are leaking, and some of the compressed air, rather than being directed into the tank, is blowing by the seals and pressurizing the sump.

Cheers,

Bill

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919-165230 kicking breaker

by Doug
(Dallas)

Compressor craftsman 919-165230

Kicks breaker after tank is filled.
And it tries to refill. Is the unloader valve in the pressure switch?
Unhooked line from pressure switch too check valve in tank.
Fills tank but still kicks breaker.
Unhooked line from compressor to check valve.
Compressor starts every time manually.
What do you think?.

Thanks
Doug

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Bill says...

Doug, please read the pages on this site regarding PRESSURE SWITCHES and UNLOADER VALVES.

I think you may have nailed your compressor problem yourself.

So many models, so many switches, so I'm not entirely sure where your unloader valve is located, but I suspect, as do you, that this is your compressor problem.

Cheers,

Bill


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pressure gauge

by Mark
(Parkville, Missouri)

My 3 gallon air compressor works fine however, the larger reserve gauge does not register. (The smaller one does) The compressor is less than a year old. Any suggestions?

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Bill says....

Mark, you have two gauges. I can't see which is the larger air gauge, or which is the smaller.

One of the air gauges indicates the pressure in the compressor tank, the other, the set point of the air pressure as it flows from your regulator down to your air tool.

May I suggest you pop over to the GAUGES page and look at the short video on air gauges I made? That will explain much.

If you still have a question about your Craftsman compressor air gauge, please post it here as a comment so I can find the original thread.

Cheers,

Bill

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