On 23/05/2017 7:48 AM, Richard Youltressteleg@... [TramsDownUnder] wrote:
>

> It is interesting, Mal, that you mention wheel corrugations. It is something I have never heard anyone else mention before but have long believed that it occurs.

>

My reference to 'wheel corrugations' was tongue in cheek!

The D2s have a major problem with the wheels of the unpowered centre truck locking up on the disc brakes just before the tram stops.
This leads to multiple small 'flats' and makes them very noisy - until they are put over the wheel lathe.

I thought that the problem had been solved, but recent observations (noisy trams in Sydney Rd) indicate that this is not the case.

Mal Rowe - in B class country