D.External Air Leaks
1.Attach the regulator first stage to a tank short enough to totally submerge the first and second stage in your filling station cooling water.
2.With the tank valve still turned off, flood the second stage completely with water, and then position it mouthpiece up.
3.Turn the tank air valve on slowly and then watch for any leaks in the first or second stage (except for the normal flow of air from the
4.Repair any leaks.
5.Check for the correct positive air purge flow rate. See Section 4.4 in this manual for the proper method.
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