On Wed, 25 Jun 2008 21:29:50 +0100, Bob Minchin wrote:

The Natural Philosopher wrote:
wrote:
Pete C wrote:
On Jun 24, 12:07?pm, curls wrote:

I'm expecting cries of "bin it" but it's worth a try.

The output from this generator is low to non-existent. If I plug a
500 watt drill in, it might turn
sometimes, but only between probably 10rpm and 200rpm, it's very
erratic - guessing the speeds of
course - then it will stop altogether, and then maybe start up
again, slowly.

There doesn't seem to be much that can be done with these other than
maybe change the capacitor, but
my electrical knowledge is too lacking in such matters to even know
if that could be the problem.
Hi,

Try a google on 'generator field flashing'

There's some info about checking/flashing a brushless self exciting
generator here in a manual here.

http://www.powertechengines.com/NewageData/
MarkonPartsServiceInstallation-105-english.pdf

*If* it needs flashing it looks like you just need to connect a 12V
battery across the capacitor for a second.

If using a lead acid battery I'd also connect a fuse inline in case
something has shorted.

cheers,
Pete.

if it were that surely it would perform consistently badly. I suspect
a bad joint is more likely, which is generally an easy fix.


NT
self excited field coils are either all on or all off. once any voltage
is genraeted, they build up to a maximum.

However, surely field coils are excited with DC? perhaps there is a
rectifier block the far side of that capacitor that has gone partially
phut.


If you get desperate, the powercraft uk helpline number is 08707 323023

The type of help you usually get from those places is, "Take it to your Powercraft dealer/repair
centre." I've not noticed many of those about though.

There are downloadable manuals on the omega wolf website but not one for
this generator.

I couldn't see where the manuals were on their website, assuming I was on the correct one. I have a
users manual of the type that says, "pull the string to start it," and not much else.