From: noel shelley (noel@shelley1722.freeserve.co.uk)
Date: Sat Jan 01 2005 - 03:15:54 PST
Hi Mike and all the Gentlemen of the list !
PLEASE
when referring to the device that makes electricity in all our vehicles can
we adhere to the normally accepted terminology !
A DYNAMO is a device that produces DC electricity , by virtue of the
commutator ! {used till late 60`s }
An ALTERNATOR is a device that produces 3phase AC, rectified to DC by the
rectifier pack {6 diodes for the 3phase + 3for the warning light }[used
after the 60`s]
Before you collectively throw me to the dogs , YES I know the above is a
VERY simplistic view but will suffice for now !
CCKW--- sounds old-- ish , probably a dynamo , right ? If so then check the
brushes , long enough , free in their holders and clean ! Commutator clean ,
not spun solder out , armature not dragging on stator due to worn bearings !
NO burnt out wires !
How can I eliminate anything between the two !
A simple continuity test , a bulb and a bit of wire & battery ! Disconnect
both ends and see if the bulb lights up when connected !
The voltage control box is a wonderful collection of coils & contacts , only
play with this IF you have the data , the test gear and know how to use it !
You can clean the contacts , but use only a contact file or GLASS
PAPER ---- NOTHING ELSE ! be VERY careful NOT to open the contacts more than
is essential to clean !
Alternators also have brushes that wear out ! They are usually regulated
electronically and have no serviceable parts , just rebuild !
SOME alternators will not work if the warning light bulb fails !
Just in passing , a vehicle with a Completely flat battery and dynamo will
if towed power up and start {manual box }, but if fitted with an alternator
will NOT, due to the alternator needing power to generate !
More nonsense from Noel Happy New Year!
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