yep, impact screwdriver did the job no problem. Screws had corroded a little. I don't use the 20 inch much.
Also agree on the tipping the machine when starting it. It becomes a good habit after awhile.
Yesterday I had a fellow cleaner text me to ask if he could use one of my Brush Pros because his gear stripped. When I bought my first machine I talked to the owner because I was going to buy an extra set of gears just in case. he told me that I only need the small one because that is the one to go first. I just gave the other cleaner my spare gear and he was good to go!