wrote in message
...
On Jun 10, 3:54 pm, "Paul Scott"
wrote:

Axle bearing faults apparently,


Seems bearings was a duff rumour anyway now...

No ... axle bearings are the traction return earth path. Think about
it ... there is no other point of contact for the earth path.

Ah I see. So where does brush gear come into it? I thought that would be
used to bypass the bearings to avoid heating effects. Might be thinking of
something else though...

Paul