Won't have enough pressure for blowing down combine. I have 1 on my fastrac. Takes a age to blow up tyres too. Handy to get you out of a fix though, and for blowing out blocked sprayer nozzles.fancy fitting a air line on the fendt, got a line in a bag which we can through in cab but be easier have it bolted on tractor for tyres, blowing combine out , anybody do anything similar?
Always have a feather duster in the combine, give the windows a quick clean at night time as you say saves the dust sticking overnight.If your Combine has a compressor fitted, it is very handy to run an airline to somewhere near the cab door, so that your blow the dust off the windows and any crap out of the cab. Combines get dirty during the season. But if you can keep the glass and the cab clean, you feel a million dollars while driving it. Especially when you are dog tired. It is always a good idea to clean the glass when you stop for the night, as the dew will make it stick by the morning.
I tend to use Windowlene and paper towel while the engine is warming up before I start harvesting. From then on during the day, an air line does the job.