TC reported his TIMS show Air-dryer fault at Front DT car. Train performance all good. MR pressure i s at 11 bar. ~~~~~ TC reported his TIMS show Air-dryer faul     Check and found compressor pressure s/w right hand side OC and the holder air leak.Replaced right handside pressure s/w and tightened the pressure s/w holder.Function test and check air leak ok. Done by Saini/Haslan/Asruddin.  18/08/20