22-05-2021, 03:58 PM
Could an Electrickery Wizard please give me a little guidance. c35M dynamo and CFR2 cutout on my RP.
For quite some time I have been struggling to get the third brush adjustment sorted. The cutout pulls in and lets go at suitable revs. The ammeter shows a rising amperage as revs increase. However, on summer setting I can't get the amps up enough, and on winter setting I can't get the amps down enough.
I suspect it may be something to do with the following:
When the ignition is switched on (engine off) the ammeter shows a discharge of nearly 15 amps. Switch off, rotate the dynamo slightly via the starting handle, switch on - normal 1 or 2 amp discharge. (May need to do this a few times until the 'normal' discharge shows).
Leave ignition on, rotate dynamo slightly - 15amp discharge again.
I've not seen this on any other of my Sevens so can anyone shed light please? Is it a bad segment on the commutator?
For quite some time I have been struggling to get the third brush adjustment sorted. The cutout pulls in and lets go at suitable revs. The ammeter shows a rising amperage as revs increase. However, on summer setting I can't get the amps up enough, and on winter setting I can't get the amps down enough.
I suspect it may be something to do with the following:
When the ignition is switched on (engine off) the ammeter shows a discharge of nearly 15 amps. Switch off, rotate the dynamo slightly via the starting handle, switch on - normal 1 or 2 amp discharge. (May need to do this a few times until the 'normal' discharge shows).
Leave ignition on, rotate dynamo slightly - 15amp discharge again.
I've not seen this on any other of my Sevens so can anyone shed light please? Is it a bad segment on the commutator?