Quote Originally Posted by slingblade View Post

6.Vent high to low through the manifold set. I.E. cap off the yellow line and open both blue and red wheels. pressure should now be low on both sides (2 to 5 psi maybe). change switches and open valves. run and set switches.

sling.
slingblade,

I really like your quick-and-easy proceedure; however, what's the purpose of venting high to low? All I care about is getting the gas out of the compressor head before I remove the switch probes. Correct?

Then, after the new probes are installed, I can purge out the air through my gauge set by cracking open the SUCTION SERVICE VALVE. Correct?

KETTLER