"If you find the binoculars not working properly, do not
attempt repairing it yourself as this may void any
warranty. Always deliver the binoculars to a professional
optics repair. If one is not readily available, then send it
back to the factory."
From the OEM manual for the AN-series binoculars, courtesy Newcon Optik, 105 Sparks Ave., Toronto, ON M2H 2S5, Canada
Besides voiding the warranty, specialist jobs like this should be left to the specialists - or folks with a mechanical bent. If you want to clean the objective, why are you disassembling, or attempting to, the oculars? Cleaning the objectives can be done without removing the prisms - you only need to remove the objectives to do that. Once you remove the prisms you will most likely never get those binoculars collimated again.
Have fun