Newbie question. I just bought a B2301 with a SGC0554 Grapple. I couldn't find any zerks on the grapple. There is nothing in the manual about greasing either. Seems strange to me that the hinge points don't require grease. I now have 14 hours on the grapple and it does squeke a little when opening. I am considering adding grease fittings to the hinge points. Any ideas or suggestions would be highly appreciated!