How do I fix a Black & Decker electric lawn mower motor?
A neighbor asked me to have a look at her B&D electric mulching mower (MM1800 Type 1) after it stopped working. When I pulled the control switch, the blade didn't turn, but there was a buzzing sound and kind of a burned plastic smell. I also found that it was very hard to turn the blade by hand. At home, after a lot of trouble I was able to remove the 6 screws holding down the big plastic cover. (You should see how much grass was under there.) I can now see the outside of the motor, but how do I figure out which parts need to be replaced? The owner's manual has a parts list. I assume that some parts (like the magnet ring and armature) are OK, and that the problem is with something like the brush spring/terminal/brush insert or rectifier. How do I find out? (I'm hoping it won't be that hard to replace the parts of the motor.) Thx.