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Gauge Repair?

L

LarryBud

Member
Looking 1982 JD 2040. None of the gauges work.

I have a basic maintenance ( fluids / filter / bolt on parts ) skill set.

How hard will it be for me to get oil pressure and temp gauges working?

Tach and alt would be nice too but I know I need the first two to operate the machine.
 
(quoted from post at 08:02:38 12/19/22) Looking 1982 JD 2040. None of the gauges work.

I have a basic maintenance ( fluids / filter / bolt on parts ) skill set.

How hard will it be for me to get oil pressure and temp gauges working?

Tach and alt would be nice too but I know I need the first two to operate the machine.
Click to expand...

Hard to say what it will take or how hard the fix will be. If none work and they are all in a cluster arrangement, it might be as simple as a bad connection in one of the harness connectors. Unplug, check/clean and re-plug the connectors would be a first step. Beyond that, diagnostic troubleshooting procedures of each circuit will get the answers, and you will likely need the correct JD 2040 Technical manual, with wiring diagrams, to guide you.

If your cluster is like the one in the picture below you have indictor lights not gauges so checking bulbs is a step as well.

mvphoto100517.jpg



This post was edited by Jim.ME on 12/19/2022 at 04:57 am.
 
I'm getting mixed results on google as to what kind of gauges a 2040 has. Some show a single unit with all the gauges integrated. Others show a tach with four separate gauges for the other functions.

If you have the single integrated gauge cluster, beyond basic troubleshooting of wiring connections and bulbs, I'd say you have zero hope of fixing it.

You can always do what many others do, which is get generic 2" gauges from the auto parts store for the functions you want to monitor, and install them. Oil pressure and temperature "analog" gauges are pretty straightforward, just a single connection.
 
If the gauges are built into a gauge cluster, and it is still intact, look into the wiring, see if it can
be saved.

If not, then standard generic gauges can be substituted, mounted in a bracket to the side. I would
recommend using marine gauges as they are sealed and better suited to withstand the rain, dust, and
vibration.

If the oil gauge comes with plastic tubing, don't even think about using it! Run new copper or steel
tubing, support and protect it well.
 
The only thing I can add to the advice you have already received, is check with JD to see what's available, in case the dash
needs to be replaced. I would think this tractor is new enough and nice enough it would be worth it. I think you were satisfied
with the tractors' condition otherwise, according to your previous question?
 
Does your 1982 2040 have any other than that shown by Jim below? If nothing is working on the entire cluster, than I'd think it
would likely be a power or grounding issue. Further, for the warning lights, there ought to be a light up everything check
function when you first turn on the key... Does it do anything then?
 
Look at the breakers in the dash.We had a problem with one of the gauges/indicators not working and it was the beaker not making connection or was bad. This was on a 2940 been several years since that and I slept some since, so can't remember which function it was. The most of them are an electrical connection to a sending unit. checking snders is not to hard for oil with off check then with running see if there is a difference in voltage or ohms. Then check next one till you have your senders done. Then move to the gauges. Most of them should either read with the key off as open then with key on closed or the needles should move with the connection.
 

Thanks to all who posted. I went and inspected the tractor today and It's a little rough for my situation.

FYI. It had the tach, odometer combo and separate oil and temp gauges. Nothing connected behind the dash.

It had a significant leak out of fuel pump, only one brake worked and was in overall rough shape. However, I do think the engine is sound. Wanted $5K, bottom dollar.
 
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