I purchased a Husky 440E 16" and have so far only looked at it and started to read a very unfriendly user manual. First, the manual puts all the figures in the front in very small size, must be 16 per page (I can go count, but that is a good estimate), so when reading the how-to text you have to go back to the front of the book to look at one or more figures/pictures that are almost too small to be understood with any detail. That said, the 440E appears to have a set of snap disconnects to open the case, not the usual 4 screws/bolts holding on the top that gives access to the carburetor and air filter. I'm also used to taking off two large nuts to loosen the bar to adjust the tension, taking the nuts off to change the blade and clean. The 440E has a large dial arrangement that sits about where the bar mounting bolts were on all my past saws, not sure how to use that --- well I haven't really given it enough attention. Any quick advice on the model Husky may put me ahead of the curve trying ot understand the manual. I say all of this from the perspective that I didn't plan to read the manual as I have operated and still own a number of saws that are all basically alike physically.