Hi soldier 1964,
I just finished the winches on our boat. I used a cardboard box with a hole cut in the bottom the size of the winch so as not to lose parts overboard whist we are in the water. If you start with the smaller winches the hole can then be made bigger as you move on to the larger ones.
I took pictures during the disassembly so I could get it right during the reassembly. Being an older boat we have a variety of sizes so I had to pay attention to where the pawls were located and how the gears were oriented. Fortunately we have all Lewmars but they are single and two-speed, some self-tailors, and some not.
I cleaned the parts in a plastic tub and used a toothbrush with a rag to clean the spindels. Some spots had hardened grease so I used a brass brush for those areas. It would have been easier to remove them completely, but we're living on the water.
We used Lewmars oil and greese for assembly (very little grease) following Maine Sails advice. As a standby I also have extra springs and pawls in case one went overboard. My average time for winch was two hours and about 1 1/2 drinks. Good Luck.
All U Get