I recently purchased a 2010 Toro Z master with a Turboforce deck. The owner's manual states that the spindles should be greased until you see grease coming out of the lower seals. I have pumped probably 1/2 of a tube into one spindle and do not see grease anywhere. How much grease do these spindles hold? I am certain that the grease is going into the spindle. Any help?