I have a PD-8, and it has worked flawlessly. I also have a couple different
Shimano dynamos that work great as well.
Have you checked the wire for missing insulation, which could cause a short?
I ask because I had a malfunction recently on another of my bikes (my Schwinn
KOM, with a Shimano DH-T780 hub and B&M Cyo Premium).
My light wouldn't turn on, no matter the switch position. However, I did notice
it flashed on when I shifted the front derailleur!? Turns out, when I changed
the FD cable, I accidentally ran it atop the wire to my taillight. The cable
rubbed through the insulation and caused the lighting system to short against
the steel frame.
Easily fixed, thankfully.
I've also had the wires pull themselves out of the plug that connects to the
Check your wires and connections thoroughly.
Best of luck,
> On Oct 15, 2016, at 8:24 PM, 'Mojo' via RBW Owners Bunch
> <email@example.com> wrote:
> My SP hub has been in near daily use in rain, snow, sun, dust, for a year now
> with flawless performance.
> Perhaps your wire contacts are imperfect?
>> On Saturday, October 15, 2016 at 7:04:38 PM UTC-6, joe kelly wrote:
>> i should mention, when it does work, the lights are bright and are
>> functioning as they should; they work great!
>> thanks again
>>> On Saturday, October 15, 2016 at 8:58:34 PM UTC-4, joe kelly wrote:
>>> when i use the quickbeam with the sp dynamo hub, the hub malfunctions and
>>> produces power for the lights. about two thirds of the time this happens. i
>>> only ride about once a month. have any of you had similar disappointment
>>> with this hub? i am using all riv bought parts. eyc headlight and toplight
>>> joe kelly
>>> columbus ohio
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