13-05-2020, 07:49 AM
Hi David H
Its funny you should say that, but the other day when the dog woke me up at 5 AM to bark at the pigeons I started musing about this charging puzzle. I wondered whether the Dynamo and Field connections had been inadvertently swapped at some stage.
The stamped markings on the dynamo case aren't 100% reliable, as the phantom bodger may have dismantled and reassembled wrongly. However, you should have:
Dynamo Thin wire = Field (F) = Shunt (SH) is the field winding with a small terminal
Dynamo Thick Wire = Dynamo (D or +D) is the main charging output from the dynamo with a large terminal
When I say thin or thick I am of course referring to the wire diameter inside the insulation.
I suggest you carefullly remove the wires from the dynamo terminals, check their diameters and slide some fresh insulation over the last inch or so (where they go through the hole in the case) before refitting.
Regards, John Cornforth
Its funny you should say that, but the other day when the dog woke me up at 5 AM to bark at the pigeons I started musing about this charging puzzle. I wondered whether the Dynamo and Field connections had been inadvertently swapped at some stage.
The stamped markings on the dynamo case aren't 100% reliable, as the phantom bodger may have dismantled and reassembled wrongly. However, you should have:
Dynamo Thin wire = Field (F) = Shunt (SH) is the field winding with a small terminal
Dynamo Thick Wire = Dynamo (D or +D) is the main charging output from the dynamo with a large terminal
When I say thin or thick I am of course referring to the wire diameter inside the insulation.
I suggest you carefullly remove the wires from the dynamo terminals, check their diameters and slide some fresh insulation over the last inch or so (where they go through the hole in the case) before refitting.
Regards, John Cornforth