Find the top of the deck spindles on the mower deck. The spindles turn the blades and have a metal housing over them. There is a grease zerk at the top of each deck spindle visible through the metal housing. Attach the grease gun to one of the zerks and pump two portions of grease ...
instead of round, as it should be. It just goes to show you how important it is to grease that bottom "Zerk" fitting on the kingpin once in a while!