3622 Requested to check A1 door rollers ~~~~~ 3622 Requested to check A1 door rollers (OE)  3622 A1 door found RHS door leaf movement jerky. Further checked/found RHS door rollers worn. Replaced RHS rollers. LHS door rollers checked - OK. Function test door operation & all doors proven closed, no DIR lit up. Cleaned J-rail & J-rail surface checked - OK. Door gap = 63.5mm. Door open/close timing - OK.  Sarma/Anand/Lee PT/Kamarul 44938