Lighting burnout

Good Morning Mr Sig,
You appear to have overlooked the
elementary. Pay a visit to your nearest [censored] Smith or whatever and buy a
pair of six volt zena diodes. Get a soldering iron and wire these into
your lighting system to restrict the dynamo output. The answer is you
probably have burned out something on the dynamo, probably not the main
coils as they are pretty tough, but if you ran the unit at 55 k/mh for
16 km, it was producing 8-9 volts all the way, and wouldn't like it. My
ancient Sanyo Dynapower is still running, but then I don't ride down
Donna Buang at night!
Regards,
Ray.

Peter Signorini said:

After my recent ride my light set has stopped operating. It's a nice Busch &
Muller S6 dynamo with their Lumotec headlight, and is very efficient and low
friction.

After renewing a slightly dodgy lead and checking the bulb it still didn't
run. After putting a simple current tester onto it I seem to have no output
from the dynamo. So now I guess I have to find out about any warranty from
the LBS.

I used it on the descent of Mt Donna Buang - surely 16 kms at 45-55 kmh is
OK with the dynamo on? It was cloudy and poor visibilty near the summit, but
maybe I should have flicked the dynamo off part way down. The dynamo bottle
is fastened with grub srews so could be pulled apart.

Does anybody here have experience with repairing these units? Could the
dynamo have been burned out by a high speed run?

For the cost of these units I don't want to have to replace it, so any
advice on the problem or repairs will be greatly appreciated. TIA

Cheers
Peter

"Ray Peace" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Good Morning Mr Sig,
You appear to have overlooked the
elementary. Pay a visit to your nearest [censored] Smith or whatever and buy a
pair of six volt zena diodes. Get a soldering iron and wire these into
your lighting system to restrict the dynamo output. The answer is you
probably have burned out something on the dynamo, probably not the main
coils as they are pretty tough, but if you ran the unit at 55 k/mh for
16 km, it was producing 8-9 volts all the way, and wouldn't like it. My
ancient Sanyo Dynapower is still running, but then I don't ride down
Donna Buang at night!
Regards,
Ray.

Are you going to tell us how to connect them up?

Marty

Quoted message said:

Peter Signorini said:

After my recent ride my light set has stopped operating. It's a nice

Busch &

Quoted message said:

Quoted message said:

Muller S6 dynamo with their Lumotec headlight, and is very efficient and

low

Quoted message said:

Quoted message said:

friction.

After renewing a slightly dodgy lead and checking the bulb it still

didn't

Quoted message said:

Quoted message said:

run. After putting a simple current tester onto it I seem to have no

output

Quoted message said:

Quoted message said:

from the dynamo. So now I guess I have to find out about any warranty

from

Quoted message said:

Quoted message said:

the LBS.

I used it on the descent of Mt Donna Buang - surely 16 kms at 45-55 kmh

is

Quoted message said:

Quoted message said:

OK with the dynamo on? It was cloudy and poor visibilty near the summit,

but

Quoted message said:

Quoted message said:

maybe I should have flicked the dynamo off part way down. The dynamo

bottle

Quoted message said:

Quoted message said:

is fastened with grub srews so could be pulled apart.

Does anybody here have experience with repairing these units? Could the
dynamo have been burned out by a high speed run?

For the cost of these units I don't want to have to replace it, so any
advice on the problem or repairs will be greatly appreciated. TIA

Cheers
Peter

"Ray Peace" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Good Morning Mr Sig,
You appear to have overlooked the
elementary. Pay a visit to your nearest [censored] Smith or whatever and buy a
pair of six volt zena diodes.

Ray, the B&M Lumotec light already has this. The light works OK using a
battery to check it. Hence the dynamo is not putting out any charge and
that's what bothers me.

Quoted message said:

Get a soldering iron and wire these into
your lighting system to restrict the dynamo output. The answer is you
probably have burned out something on the dynamo, probably not the main
coils as they are pretty tough, but if you ran the unit at 55 k/mh for
16 km, it was producing 8-9 volts all the way, and wouldn't like it.

Have spoken to the shop and they think speed shouldn't harm the dynamo, but
it is under warranty (3 yrs - pretty good) so I'llget them to look it over.

Quoted message said:

My ancient Sanyo Dynapower is still running, but then I don't ride down
Donna Buang at night!

It was daylight, actually a repeat of the infamous Donna Buang Snow Ride.
You remember the 1980 experience. We had snow but generally all rideable.
The descent was cold and gloomy with misty clouds at first, so we put the
lights on to warn cars. Lower down we had rain but with good wet gear I kept
dry and warm. Dave and Mike Kater were with us, both previous snow riders.
Give us a bell sometime about doing some rides.

Cheers
Peter