Does anyone have any advice or input on washing a combine harvester and other farm equipment?

A local implement sales company just called me to wash a few of their combine harvesters. From what I gathered, these are not super dirty “out in the field for 10 years” combines, but rather relatively new units. They want the whole exterior as well as the engine bay washed.

What chemicals, techniques, etc should I use? I have washed engine bays before. Does anyone have anything to add?

Thanks!

Are these the “showroom” models out on the lawn?

If so, shouldn’t need more than water and rinse.

I’m also interested in this. I have a farmer contact that needs someone to wash his equipment this year. I’m not set up for hot water, do you need hot water to get a good clean?. Does anyone have any experience with Pink Thunder?

If they have been in the field, blow them off with the biggest leaf blower you have, an industrial air compressor is even better. They will have dust and dirt in every nook and cranny after just a few minutes in the field, even if they are newer. The more you can remove with air, the easier it will be.
Try not to really blast any of the electrical (newer machines have a TON of harnesses) components or bearings with high pressure water.
It takes a lot of water to get them clean, it seems like dirt and straw just keeps appearing. Pressure just moves the straw around, flow rinses it off.
Be sure all the guards and shields are removed so that you can access everything.
If you are lucky they are lot machines that they just want shined up. If that’s the case, wash rinse repeat.
Used equipment can be tricky, especially if it has hydraulic leaks. A good degreaser helps. Be cautious with the paint and decals.

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