I have an old Ryobi 160, it was working ok, but slide switch on the locking mechanism would sometimes drift over and the router would stop. I would usually be able to make it work by just nudging the switch over and holding it and everything would be good. Now it doesn't work at all. so I'm pretty sure I need to replace the Slide switch. Part number 612856002, but it's discontinued, can't find it anywhere, so I'm wondering if anyone knows an alternative part I can use. I can do basic part replacement, but I'm not knowledgeable enough to figure out what parts to use if the original part isn't available. it would be a shame for me to have to trash this router because I can't find a $10 part. Any help would be appreciated.