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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
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