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.

Putting two and two together, the report of 130 mm bearings on 377/5
compared to all previous 377/x with 120 mm bearings causing something
to come into contact that should not could be an electrical earth
issue.

--
Nick