How to get grain out of storage silo?

[Robb]

Hello, im on the map in america, i threw some grain in my storage silo, but i cant get it out, i tried driving under the chutes, but nothing happens, please advise. Thanks in advance

[Pol Middickof]

when you have a tipper parked under the silo pipe theres a button you press to select grain and start depositing into tipper which will display on the little window on top-left of your HUD

[roggek]

You press "R" then select the grain which you want to fill the tipper with...