#517/518 AIR LEAK TEST FAILED,1.0 BAR/ ~~~~~ #517/518 AIR LEAK TEST FAILED,1.0 BAR/     Check and found #2518 brake frame exhaust air leak badly.Further check found double check v/v faulty.Replace and function test ok.Air compressor cut in-8.44 bar,cut out-10.31 bar,Charging time-2min30sec,leak test-0.5bar/5min. Done by Sanip/Deeshan/Joshua.  05/01/21