Posted by John T on March 22, 2010 at 18:39:17 from (71.55.30.174):
In Reply to: amp Meter posted by Cory Smith on March 22, 2010 at 14:24:51:
An ammeter (a 2 terminal in/out series passive current measuring device) has a SUPPLY side which has but one wire, to the hot ungrounded battery post, often via a wire to the starter switch where the big battery cable attaches. The other terminal is the LOAD terminal which attaches to the output of the alternator PLUS feeds hot battery voltage to loads like lights and ignition.
For a Neg ground tractor the + is the SUPPLY while the - is the Load, opposite that for a Pos ground tractor
If its wired correct if you turn on lights or ignition engine not running it should swing over to - discharge...If it does opposite of that reverse the leads
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