Back in the fall before it got too cold, I tried to grease up several pieces of equiptment. It seemed like half of the zirk type fittings wouldnt take grease and the grease would just pour out the side. Could it be my gun tip is worn out? What can I do to get grease into those fittings if it isnt the gun? Help - ive got an old set of discs for my tractor that one of them appears to be partially bound up, but I cant get the fittings for that bearing to accept fresh grease.