Prts or manual for a model 1Z937C Speedaire compressor?

Compressor info:

Speedaire model 1Z937C 2 stage, 10 HP, 120 gallon tank.

misc info: Dayton electric co. 15424

This compressor runs fine, except when it shuts off at max. pressure, it leaks air at, I believe it is the valve that relieves pressure on the pump for easier start-up at min. pressure.

The problem is that it doesn't just relieve a small amount of air and stops; it relieves a LOT of air and doesn't stop. This valve is located in line with the crankshaft, on the opposite end of the flywheel. I am looking for help on how to fix it, and/or how to locate parts or manual.

Thanks,

Comments for Prts or manual for a model 1Z937C Speedaire compressor?

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Oct 28, 2016
Speedaire leaks air
by: Bill

Covered on the troubleshooting pages. See those relating to unloader valve and tank check valve on this site for specifics about this compressor problem and about how to fix it.

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