About greasing with partial disassembling - See these pictures:
http://dl.dropbox.com/u/4370787/Gre_0704.JPG
http://dl.dropbox.com/u/4370787/Gre_0705.JPG
http://dl.dropbox.com/u/4370787/Gre_0706.JPG
You should know, just in case you don't, that Alemite makes an attachment for their grease guns that has a very small orifice for grease application in tight spots. Here is a picture I just took of mine in action. Squeezing the handle quickly shoots a thin high-pressure stream of grease about four feet (in the USA) or 1.3 metres (in Canada). I have found this invaluable for putting grease quickly into tight places that have been flushed out with thin oil or kerosene & blown clear with compressed air.
You should also be aware that Keystone (and others) makes an adhesive lubricant known in the industry as "open gear grease" that comes in aerosol cans and can be squirted as a foam (!) into very close quarters. They all have good adhesion and the lithium-based types are water resistant. Better than oil in places where grease is required but difficult to get it into.
I have a good collection of specialty tools and dry and wet lubricants designed for use in machining and maintenance procedures. The grease fitting that squirts grease is especially useful because it allows precise placement of the lubricant.