20-10-2020, 09:17 PM
Well it now charges!
I eventually did the obvious and checked if there was any power coming out of the dynamo ....nothing!
By then I had taken the switch panel apart & it was in pretty good shape. So I took the brushes out of the dynamo (bloodstained business!) All looked good....third brush had a bit of a chip out of the top, but ok, just as well as the spares in my box were wrong! I had forgotten that cleaning the commutator with the dynamo in situ was not very practicable.Put it back together and bingo! 8amps on winter charge....nothing on summer, bother, but I can live with it! I may have movedthe third brush a bit.
The dynamo is marked C 35M bn 86 No 2202186v 8-7 not clear to me what year it is. My battered spare is again a C35M bn86 but number 220198 9-6
I eventually did the obvious and checked if there was any power coming out of the dynamo ....nothing!
By then I had taken the switch panel apart & it was in pretty good shape. So I took the brushes out of the dynamo (bloodstained business!) All looked good....third brush had a bit of a chip out of the top, but ok, just as well as the spares in my box were wrong! I had forgotten that cleaning the commutator with the dynamo in situ was not very practicable.Put it back together and bingo! 8amps on winter charge....nothing on summer, bother, but I can live with it! I may have movedthe third brush a bit.
The dynamo is marked C 35M bn 86 No 2202186v 8-7 not clear to me what year it is. My battered spare is again a C35M bn86 but number 220198 9-6