A while back, some idiot (I don't want to mention any names, but his initials are "pianoguy") was working in the yard, having carelessly put his trusty Woodvil in his jacket pocket without turning off the main switch. Naturally the button fired for some unknown amount of time, frying the spring. Anyway, I decided to attempt to replace it myself. A good bit trickier than replacing the spring on the Grand or Mini, but not too bad. I am happy to report that the patient is resting comfortably, and a full recovery is expected.
