I disassembled my CS 352 because it had what seemed to be a small oil leak. I found that the whole interior of the saw was full of oily wood dust. Every nook and cranny had a wad of oily dust. Took quite an effort to clean it. Still not sure where the leak occurred but it was inside the casing. the saw looked fine on the outside, and hadn't leaked out of the saw, so I had assumed that the saw was doing OK. This is perhaps a rare occurrence, but I figured I'd mention it here just in case someone had a similar experience.