665/666 M2-M2 Auto Coupler air leak found during shunting,
To check and Rectify ~~~~~ 665/666 M2-M2 Auto Coupler air leak found during shunting, To check and Rectify  #2665/2666 found coupler cylinder leak, replaced coupler cylinder and function check ok. #2665 notification -> 2611072 #2666 notification -> 2611073 Done by: Saini and Kumar. 24/06/2024