509/510 to conduct Pneumatic health chec ~~~~~ 509/510 to conduct Pneumatic health chec     Charging time #3509 local on-3min 10sec.Isolated 6 car BIC ,Charging time 2min 12sec.Leak rate 0.56/5min.Measured BSR pressure when MR-3509,1509,1510 BSR pressure drop.Service BSR strainer check v/v-checked spring length ok,replaced strainer filter element.Conducted charging time-2min 15sec,satis.#3509 cut in-8bar,cut out-10.31bar. Conducted charging time for #3510 Local ON-3min 20sec.Found air dryer having slight air exhaust from exhaust port during air compressor charging.Air dryer was able to purge as required.Replace #3510 Air Dryer and replaced #3510 air compressure filter.Charging time 2min 49sec ,satis.#3510 cut in-8.5bar,cut out-10.5bar. Air Dryer-    New s/n: 015-12781 Old s/n: 3515480324 Not: 2342488 raise. Done by Sanip/Koh/Fadzzal/Arthur  22/12/21