JohnMO

Wow. I appreciate the detail of this post. I landed here because my E3 was out of whack (sounded inordinately loud, even with a light touch) and my efforts with compressed air did not resolve the problem. However, seeing the location of the sensors in these photos enabled me to better target my air blasts and voila! Problem solved. I am thanking my lucky stars, too, because I know that even with the help of this nicely illustrated process I would have screwed something up.