Re: SON goes wrong shock horror scandal threat probe report!

Just zis Guy, you know? wrote:
On Sat, 24 Jan 2009 21:27:51 +0000, Peter Clinch
<p.j.clinch@xxxxxxxxxxxx> said in
<6u1fedFd4ognU1@xxxxxxxxxxxxxxxxxx>:

Yes, SONs really can go wrong. The one from my Brom will be heading back to Schmidts on Monday after it stopped working after several years fault and maintenance free running :-(

Luckily nobody else has a Brompton with a SON, do I?

Oh bugger.

I wouldn't worry /too/ much... First, I've had a bad time with dynamos lately, perhaps a strange and malign cousin of the puncture fairy? The bottle on the 8Freight was behaving very strangely, beyond what I could do anything about armed with a multimeter and a poor knowldege of electricals (I got to the "everything works except the whole thing doesn't" and ran out of steam there), so took both over to Glasgow yesterday for The Man Who Knows to have a look.

The 8Freight turned out to be an earth leakage fault, not too long to diagnose and rectify. Then on to the Brom. Once up on the stand Ben commented the rear pivot and bushings were a bit tired, and with almost an inch of play on the back wheel I had to agree! He had a spare set and had that fixed while I went and played on the new 20/20 Spirit (nice for what it is, I don't want one though), and then onto the lighting, which we'd both initially assumed was probably lamp or wiring on the simple grounds that it practically always is (though again my multimeter had suggested it was okay).

Ben was quite amazed that it was the hub: "It /is/ the dynamo! Well that doesn't happen very often, I'll send it back to Wilfred", said in tones that suggested that it really /doesn't/ happen very often, and will very probably get a thorough sorting.

It's been a while since I visited Kinetics, and I was happily reminded of what a bombastically great shop it is to visit in person. Hopefully the mail order has come through it's rather hopeless patch, but even if not it's an excellent BaM visit.

Pete.
--
Peter Clinch Medical Physics IT Officer
Tel 44 1382 660111 ext. 33637 Univ. of Dundee, Ninewells Hospital
Fax 44 1382 640177 Dundee DD1 9SY Scotland UK
net p.j.clinch@xxxxxxxxxxxx http://www.dundee.ac.uk/~pjclinch/
.

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