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Fw: TA/TB CJR3 and 3rd brush

Posted: Tue Feb 20, 2018 5:55 am
by jeffrey townsend
Resent following failure 1st time.

Jeff

[b]From:[/b] jeffrey townsend jeff.townsend@hotmail.co.uk> [b]Sent:[/b] 19 February 2018 10:03 [b]To:[/b] mg-tabc [b]Subject:[/b] TA/TB CJR3 and 3rd brush   Hi All,

Having sorted my TB charging problem I want to finish the job by replacing the high and low charging resistors in the CJR3 box and by adjusting the 3rd brush in the dynamo to give optimum charging. I have 2 questions as follows:

Can anyone confirm resistors capacities/type as follows: Winter (High) 2.2 ohms and Summer (Low) 3.9 ohms, both 10 watt wire wound.  

Could someone confirm best ammeter reading to go for when adjusting the 3rd brush. I have done this before and usually settled for around 2amps positive on headlight setting but that was just my guess.

Thanks and Regards,

Jeff Townsend  North Cambridgeshire  TA1957  TB0489


TA/TB CJR3 and 3rd brush

Posted: Tue Feb 20, 2018 2:03 pm
by jeffrey townsend

Hi All,

Having sorted my TB charging problem I want to finish the job by replacing the high and low charging resistors in the CJR3 box and by adjusting the 3rd brush in the dynamo to give optimum charging. I have 2 questions as follows:

Can anyone confirm resistors capacities/type as follows: Winter (High) 2.2 ohms and Summer (Low) 3.9 ohms, both 10 watt wire wound.  

Could someone confirm best ammeter reading to go for when adjusting the 3rd brush. I have done this before and usually settled for around 2amps positive on headlight setting but that was just my guess.

Thanks and Regards,

Jeff Townsend  North Cambridgeshire  TA1957  TB0489


Re: TA/TB CJR3 and 3rd brush

Posted: Thu Feb 22, 2018 9:30 am
by Roger Bateman
Jeff, Many thanks for reporting back on the resolution of your charging problem.  It is of enormous value to the group as a whole to do this, especially when the fault is as obscure as yours.  it is particularly helpful when several solutions have been offered to know what actually worked. Cheers,Roger Bateman [img]https://ec.yimg.com/ec?url=https%3A%2F%2Fipmcdn.avast.com%2Fimages%2Ficons%2Ficon-envelope-tick-green-avg-v1.png&t=1522512022&sig=TfSygbbFI266ZFBsk246Ew--~D[/img] Virus-free. www.avg.com