I have a 45 I plan to use mainly for sizing. It is tight with no excess play in the rods, etc. Sizing works great so far. I want to clean it up and get rid of the old lube. The cap to the lube chamber on this one has 4 openings on the top where the others I have seen are solid. I can slide the top off but there is no nut or anything else visible. I read through the clean up, etc. for the 45 but non of the photos come up. Get a photobucket circle and I don't have a photobucket account. If someone has a parts breakdown photo of this part of the unit would be very helpful. Or am I missing something from the instruction manual? Thanks in advance for any advise.