#1528 Car A1,B2,B3 and B4 door check, re ~~~~~ #1528 Car A1,B2,B3 and B4 door check, re     A1 door rubbling sound,clean up J-rail and bottom guide rail function test no rubbling sound.A4,B2,B3 door found 20mm door gauge test fail.Adjusted door sensing s/w and test 10/20mm door gauge test pass.B4 door found wobbling,replace both door roller and function test ok.Door static and cycle test ok. Done by Sanip/Koh.  12/07/22