I have a LA463 loader and am having a somewhat minor, but frustrating, recurring problem. When I try to lubricate the bucket pin, for example, I cannot remove the grease gun from the Zerk fitting. The fitting is recessed at the end of the pin, and there is insufficient space to angle the gun's nozzle for its removal. How do I remove the gun? Is there a special nozzle that I should be using? Thanks in advance for your help.