Posted by Nofbdybs on November 27, 2011 at 13:43:33 from (74.249.134.114):
Got a problem with my air compressor.
Its a Speedaire 5hp, 80gal, 3phase horizontal.
Anyhow, it is something that is in the pressure switch.
Here is the entire assy.
When the pressure exceeds 100psi, this problem begins.
This is the problem part, the little part that is connected to the hard line.
This little "device" is some type of valve. There is a little needle that extends from the tip of the "nipple" It connects to the hard line above it.
Anyhow, there is a small paddle assembly inside the switch that moves against the little needle. As the needle is pushed in, it will bleed air. (why?)
Under normal operation, the needle will extend all the way out, close the valve, and will not leak air.
I cant make it stop leaking. There is a constiant hissssss coming from that little device. Not a major loss of volume, but enough to deplete the entire tank in just a few hours.
My question is this. Is that little valve bad, or is there something in the pressure switch that can be adjusted to get to to close fully?
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