What Glenn Said
Todd, that's the detergent dispenser I mentioned further up, and the information from Glenn is 100% correct.
There's one more thing you should know, since I presume you don't have the owner's manual. The only ways that dispenser will work are 1) If you set the Soak & Wash selector to the "on" position (and set the timer dial for the soak or prewash cycle of course), or 2) If you set the timer dial to the maximum of, IIRC, 14 minutes of "Normal" wash time, which is sort of a "why bother" scenario. It's easier to dump the detergent into the tub yourself.
My mom rarely used the dispenser and it just sat on a shelf near the machine. It was left behind when she had the machine replaced in late 2000, and I ended up sending it to a member in New England who had also found this same machine, but I don't think he ever showed up again with a progress report.
The weak link on this machine, and likely other Kenmores using the same design, is the fabric softener dispenser. Dilute, dilute, dilute or it will get gooey in there and the mechanism will get stuck. The solenoids for the bleach and FS dispensers may (have) develop(ed) a buzz, but it only lasts for about a minute.
This machine will last you a long, long time, and you'll barely be able to hear it agitate on full loads (Mom's used to make a weird "snorkeling" sound out of the drain hose on low water levels). I'm glad you found it. If I had been cruising CL, I'd have alerted you to it, but right now I'm in the midst of downsizing, so CL and thrift stores are two places I've been avoiding.