instrument panel glass cloudy white

[4000su]

Anyone have experience with your instrument panel glass turning a cloudy white color on top half and some of it looks like a dripping shapes after running at PTO RPMs for quite a while--for example brush hogging a field.

I have a JD 2740

 

[kuboman]

Condensation inside the instrument. See it all the time. It usually clears up after it warms up.

 

[hillbilly rick]

I have a 2520, and I get some condensation during cool down after about an hour of mowing. It clears up fairly quick. Obviously, some moisture is getting in there, but I cant figure out how. It's not ideal, but I'm not too worried about it.

 

[atczero]

My JD 4300 does that when I have been bush hogging for several hours. It really doesn't look like condensation and it is usually hot dry days when I am out mowing. The first time it happened, it looked like the plastic had gotten too hot and was permanently damaged so I was surprised when it was cleared up the next day. It doesn't cause any real problem and it does always clear up.

 

[dfkrug]

I don't know about the 2x20s or the 2x40s, but the JD4x00s have a glass instrument
cover that is varnished on the inside. The varnish can go bad, as well as the rubber
gasket. On my last 4300, I took the cluster apart and used a razorblade scraper to
remove the varnish. Now, it looks like new.

A good rubber gasket should keep the humidity out.

 

[stingray1]

My 4200 had the same problem.I took the cluster apart,removed the lens,cleaned it and the gasket with rubbing alcohol and reinstalled.no more problems

 

[samhudson3]

My 4300 has the same issue. Glass will cloud up and then clear as it cools. Never have taken the cluster apart, figuring I'd probably screw something up...

 

[RedHawkRidge]

Also had the same problem on a 2000 yr JD4700. The dealer was "helpful" and more than happy to sell me a replacement instrument module that "would eliminate the problem". And of course the new one clouded up just like the original. So, like everyone else, I just grinned and beared it, like most loyal JD'ers.
jim

 

[zzvyb6]

Hair dryer.

 

[blongdoq]

Try cleaning the inside lens surface with Rain-X anti-fog or Kleer VU. As mentioned above, it's condensation and the anti-fog should solve your problem.