Hello all,
I've been working on a 'custom' pieced together air compressor off and on for past couple months and am having trouble.
The tank is 26gallon husky, compressor unit is from a Devilbiss pro 4200, and the motor is a vintage Westinghouse. The compressor was salvaged from a complete unit that the motor died on some time ago. The motor came off a very old and smaller compressor that I couldn't tell you the make of, but was rigged up to a very small tank ~1 gal max, bought it off of craigslist, guy didn't know much about it.
The way I have it set up 'should' work in my mind, I just don't know what's going wrong.
The problem: When powered up the motor runs strong but after only perhaps 1 minute of running (and no tank pressure) the motor speed starts to slow drastically and I'm certain would cease if I let it. My first thought was the check valve. So I bought a new one, had the same problem, thought maybe it was a defective check valve so I got a replacement and still have the same problem. I even tried taking the braided discharge line off and running the pump into a spare tank I have and got yet again the same result.
In the pictures you can see that the 1/8"npt line out of the check valve is rigged with a pop off valve, I haven't gotten to routing a hardline to the shut off switch yet so I stuck that in there so I could manually unload the line should the unit reach ~100psi tank pressure, obviously this hasn't happened yet.
I can take the braided discharge line off, turn on the motor and it pumps air strong just into the air so I'm assuming the pump is working properly.
That leaves the motor? Perhaps its underpowered? Am I missing something in the way I have it set up?
I've attached a few pictures of the set up and motor. Any help you guys could provide would be great! Thanks!!
I've been working on a 'custom' pieced together air compressor off and on for past couple months and am having trouble.
The tank is 26gallon husky, compressor unit is from a Devilbiss pro 4200, and the motor is a vintage Westinghouse. The compressor was salvaged from a complete unit that the motor died on some time ago. The motor came off a very old and smaller compressor that I couldn't tell you the make of, but was rigged up to a very small tank ~1 gal max, bought it off of craigslist, guy didn't know much about it.
The way I have it set up 'should' work in my mind, I just don't know what's going wrong.
The problem: When powered up the motor runs strong but after only perhaps 1 minute of running (and no tank pressure) the motor speed starts to slow drastically and I'm certain would cease if I let it. My first thought was the check valve. So I bought a new one, had the same problem, thought maybe it was a defective check valve so I got a replacement and still have the same problem. I even tried taking the braided discharge line off and running the pump into a spare tank I have and got yet again the same result.
In the pictures you can see that the 1/8"npt line out of the check valve is rigged with a pop off valve, I haven't gotten to routing a hardline to the shut off switch yet so I stuck that in there so I could manually unload the line should the unit reach ~100psi tank pressure, obviously this hasn't happened yet.
I can take the braided discharge line off, turn on the motor and it pumps air strong just into the air so I'm assuming the pump is working properly.
That leaves the motor? Perhaps its underpowered? Am I missing something in the way I have it set up?
I've attached a few pictures of the set up and motor. Any help you guys could provide would be great! Thanks!!
