2004 L3130 Dash not working - alternator producing 12.4 volts

[DJ05747]

I was mowing a couple days ago and I noticed that my dash had stopped working. No RPMs or dash lights. I checked the fuses under the dash with a test light and they are all working. I checked the battery with a multimeter and it was at 12.4 volts. I checked alternator with a multimeter and it was only producing 12.4 volts. The alternator is only 2 years old. I took it out and switched the voltage regulator with the old voltage regulator from the original alternator, reinstalled and still got 12.4 volts. I'm assuming that the dash not working and the undercharging alternator are related but I really don't know. The tractor will still start and run but the glow plugs do not seem to be working. Anyone have any thoughts on what I can to to try to figure this one out?

Appreciate any help.

Thank you

 

[North Idaho Wolfman]

I was mowing a couple days ago and I noticed that my dash had stopped working. No RPMs or dash lights. I checked the fuses under the dash with a test light and they are all working. I checked the battery with a multimeter and it was at 12.4 volts. I checked alternator with a multimeter and it was only producing 12.4 volts. The alternator is only 2 years old. I took it out and switched the voltage regulator with the old voltage regulator from the original alternator, reinstalled and still got 12.4 volts. I'm assuming that the dash not working and the undercharging alternator are related but I really don't know. The tractor will still start and run but the glow plugs do not seem to be working. Anyone have any thoughts on what I can to to try to figure this one out?

Appreciate any help.

Thank you

If only there was a manual that would help....
Oh wait... it's called the WSM aka service manual

Look at the envelope, top right of your screen.