The timer on our machine went out- the machine would not agitate during wash cycles.

First, I removed the timer knob and two screws that hold the timer in place behind the knob. Next, I unscrewed the 5 screws that hold the metal back to the control panel and removed the metal back. Making sure the washer was unplugged, I unplugged the block of wiring that attaches to the side of the timer, and the green ground wire, being careful not to break the plastic clips on the sides of the wiring block. I took the old timer out, twisting it clockwise (? i think) to remove it. Put the new timer in, plugged in the wires and screwed it back in position. Replaced the back of the control panel. The whole thing was simple and took 15-20 minutes!