The old Deere 20 series combines have a back window in the cab. There is also a window in the grain tank. Once the window in the grain tank completely covered the bin is full. This is assuming they don't have grain tank extensions.
Since the 9400-9600 combines they've had full sensors that sound an alarm when full.
Funny story. I went through a combine inspection on a 70 series jd combine and talking with the customer I mentioned the grain tank full sensors didn't work. He said "Yea I know they don't work and the last combine we had they didn't seem to work very good. It'd be nice to get them working again because it doesn't take long to have corn running on the top of the cab and going all over the place. I thought about drilling a small hole in the extension so I could hear a small trickle of corn on top of the cab shortly before it comes running over the top."
As you can probably imagine, cosmetics don't really matter to that operation.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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