How To Check If The Alternator Is Charging. Once you start the tractor it should start to climb until it reaches about 14 volts. This condition is dangerous to your cars battery and electrical system.
125v is only 12 charged. More sophisticated testing equipment is needed to detect an open or shorted alternator diode Step 2. Then start the engine and check for increased voltage readings.
125v is only 12 charged.
I checked mine and the volts go up a. All of the wires that lead to the alternator have to have a good and clean connection. Then start the engine and check for increased voltage readings. Its worth noting that a bad serpentine belt.
