The battery cover on the K-1000 screws into the base plate, and the base plate is attached to the camera by just three small screws. It would be easier to remove the base plate and soak it in white vinegar to clean off the leakage. Note that the center screw is a smaller size than the two outer screws. If you don't feel comfortable doing your own repair, you could have a professional camera or jewelry repair person remove the screws. If you decide to do it by yourself, make sure you use a screw driver that's the correct size and of good quality. Press down firmly as you turn the screw to avoid stripping the head.