3520 Deere cab fuel gauge issue

[Deereequipment]

I sure could use some help.

I bought an older 3720 Deere with a cab recently. Fuel gauge worked fine.
It went back to the dealer for warranty work (power beyond was installed and was leaking, so they had to replace a line and orings).

When I got it back, it stayed on full for the longest
Time, then dropped to
Empty and low level warning lights came one.

Filled it up and was fine, but I figured no need to keep an eye on it.

I got on it tonight, and itç—´ about 1/2 down from the top of the tank, the full gauge reads full, but my low level warning light and words on the display are there.

Anyone have any thoughts?

 

[Roadworthy]

It sounds as though your float may be sticking. I suspect the low furl warning is a separate issue, especially if it's working correctly and the gauge isn't.