7520 ?electrical issue?

Yankee7520 · Jul 21, 2014

My 05 7520 has a new trick. While running the tach stops working, and the oil pressure light starts blinking. Shut down, restart, tach works, oil pressure light is out. Go back to work, tach drops in stages (no change in RPM), oil pressure light blinks. The area dealer that sold this new is no longer a Mahindra dealer, and the dealers in the state don't sell the larger tractors. Looking for any advice, and or a electrical diagram so I can trouble shoot the problem.
Thanks,
Tom

oldpilgrim · Jul 21, 2014

I really don't know what the problem IS, but the first thing I'd do would be to check the ground connection to the instrument cluster.

Good luck.

MtnViewRanch · Jul 21, 2014

See if giving the side of the cowl a slap puts it back to working as it should be without shutting down. If so, a good chance that it is the ground wire as has been suggested.

Good luck.