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Disconnecting Battery
V8MoneyPit:
That applies to neg earth cars like yours anyway! Old pos earth cars would be the other way round. I always have to think carefully when jump starting the Grey Fergie. It's pos earth and being jumped by a neg earth car!
Range Rover Blues:
--- Quote from: V8MoneyPit on January 03, 2009, 11:37:29 ---That applies to neg earth cars like yours anyway! Old pos earth cars would be the other way round. I always have to think carefully when jump starting the Grey Fergie. It's pos earth and being jumped by a neg earth car!
--- End quote ---
Hmm, I'm sure there is way round that but I bet it made you Very careful ;)
hobbit:
Another little thing there is on jump starting a vehicle, his connect dead battery to live, ie, connect up each lead from the dead battery to the live battery, and look properly to make sure of the polarity of the other vehicles battery, especially if you haven't used it before, sometimes what may look like pos may not be, check for the markings on the battery itself you are connecting form
It may sound obvious, but some of the vehicles I've had to start, sometimes you could make a mistake, too easily done, not worth the hassle and damage it can cause especially on modern cars
Even now with myself, my lightweight has a live feed drain, so I normally disconnect the offending item if I'm not using it for a day or two, and reconnect when starting, but sometimes I forget, then out come the leads, although I do this on a regular basis on the same vehicles, I still have a second look out of force of habit to make sure I have the right lead going to the right connections, cold morning, tired eyes can = lovely sparks shower
Have fun :)
muddyjames:
--- Quote from: Bishops Finger on January 02, 2009, 23:17:59 ---Neg off first
Pos on first
--- End quote ---
I was told positive off first then positive on last. That way it kills the whole vehicle being live and you always have a neutral back to the battery. If the neutral is off but positive is on then anything will find a way to earth through vehicle etc.
freeagent:
neg off first, then neg on last.. that way you can't short out if you touch the bodywork with a spanner while touching the live side...
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