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I am changing the alternator on an old tractor. The old alternator has one D+ terminal that receives power only when the key is on. The new alternator I am retrofitting has an S (sensor) and L (lamp?) terminal.

From what I can understand, the wiring for the new alternator is as such;
S terminal to B+ (battery positive post)
L terminal to wire that fed D+ on old alternator (for the purpose of dash lamp)

If hooked up this way will the sensor wire drain the battery over time when the tractor is not running?
Will the dash lamp go out as it should when alternator is making sufficient power?

Any help would be much appreciated,
Thanks guys!
 
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