2570 A4 Shell thread ~~~~~ 2570 to carry out wheel reprofiling A4 Shell thread Wheel profiling done by Aw SP and Ng YF on 24/7/20. A1,B1,A4 shelled tread. 2570 carbody ht adjustment To carry out carbody ht adjustment according to EMU/CM1/002 checklist and clean M2 car coupler pins. Carbody ht adjustment done by Aw SP, Ng YF, Teo KP, Tay LC on 24/7/20.