1725 instrument panel help

[be182]

Need help - the RPM and fuel gauge needles don't move on my New Holland 1725. I have cleaned the contacts, checked the fuses, just the fuel gauge now registers sometimes. I took the panel apart and see it's a computer board, so haven't a clue about that. A new panel costs $620 and if it's not the problem I'm out that money. Any ideas what to do to troubleshoot, fix?? Ty

 

[kirkawilson]

You might try to troubleshoot with the attached wiring diagram.

 

[be182]

Need help - the RPM and fuel gauge needles don't move on my New Holland 1725. I have cleaned the contacts, checked the fuses, just the fuel gauge now registers sometimes. I took the panel apart and see it's a computer board, so haven't a clue about that. A new panel costs $620 and if it's not the problem I'm out that money. Any ideas what to do to troubleshoot, fix?? Ty

TY. The issue is at the alternator where the wires come out and hot goes to the instrument panel. I suppose for some reason that connection isn't good so tightened up the connectors. I saw the plastic housing for the wires crumbled.

 

[kirkawilson]

Great find, Ty. I have been plagued by electrical problems on my NH1920 for some time now, but have never checked the alternator connection. I did notice the alternator connection wiring looks brittle. Thanks for posting your fix!