Ever take notice of fire trucks.... Always clean, not because firefighters have a lot of free time to polish them.... It's because with clean engine an chassis and bodies, it's easier to spot/stop potential problems, like finding cracks in chassis or missing bolts and nuts and potential problem indicated by oils leaks.... The concept of "clean" and "inspections" should not be lost just because its a tractor? Last thing I want is to go out anticipating to do work and finding I have to do several hours of repairs and by end of day did not get anticipated work done....
My boss (when I was in work word) did not understand when I took tools out of tool room I inspected/tested them before leaving shop.... Because some dolt puting defective tools back on shelf and not tagging them as broken... Nothing worse than getting to job site, plugging in power tool, pulling trigger, NOTHING.....
Washing tractor or truck or implement should be part of "maintenance inspections"...
Dale