texan21 wrote:
I would think 2 ac's are not more than this 6000w generator can handle?
You are correct. The generator should be able to power both AC's provided each is on it's one supply line from the generator. When you open your breaker panel to tighten the connections, you should check to make sure that each AC is on it's own "side" of the power distribution panel. In other words, the breakers for the ACs should be adjacent to each other. If there is a breaker in between them, then they are on the same side. That could cause an overload for the generator, but I would think this would make the breaker at the generator more likely to trip if this was the case, not the breaker in the panel. But who knows?
If the electrical connections seem proper, I'd change the oil and put in the thickest single viscosity oil recommended for the generator for the high temps. See if that helps. If it does, you've solved the problem. Of course, you might have to put thinner oil in should you use your rig in the colder weather if the temps drop outside of the temperature range for the thicker oil.
Not that it probably matters, but is this a gas, diesel or propane generator?
Good Luck,
~Rick