[bthomas7408]

I can hear constant air coming from my P-Cool, I took the cover off and along with the wiring there's a small 1/8" tube blowing air non stop.

What is the purpose of this?

Can I plug it? I know its very small, but overnight it drains my air compressor and I feel like my air compressor turns on more often than it needs too.

[Jorg_Aussie]

hi , by p-cool I assume it's the programmable coolant nozzle?
I know air flows through the spindle bearings for a long time to oil the bearings and prevent coolant ingress into the bearings
are you sure it's through the programmable coolant?

[bthomas7408]

Positive its coming from the P-Cool (programmable coolant) as in my initial post I stated "I took the cover off and along with the wiring there's a small 1/8" tube blowing air non stop."

[mbservice]

Very strange even just checked my spare one and it doesn't have an air fitting I thought was only power cable and coolant feed to them
Can you locate the actuator that switches the air on and off ?

[tom o]

No air on mine

[bthomas7408]

Took the cover off today and took a picture, red arrow pointing at it......it never stops blowing air.....haven't had a chance to route the tube to where it comes from.

[JFettig]

Someone probably added it to maintain positive pressure to keep coolant out.

[tom o]

So where is the other end of the tube located? Could you have a leak somewhere else but notice it on this end.