stepping mast

Aug 3, 2015
6
Oday Ospray Milton
I just purchased an O'Day Ospray. I found the original manual online, and it mentions using the mastjack when stepping the mast. There does not appear to be any such thing where the base of the mast sets in, just an oval protrusion where the mast appears to slide onto. Does anyone have a photo of the "mastjack?" Better yet, what do I need to do to be sure I am stepping the mast properly?