After a dozen years of use, our washing machine no longer works during what should be the spin cycle. The timer will need replacement, but can be given a temporary extension of life to get us through a few more loads until the timer I ordered on-line arrives.
Step 1: Remove control knob
The black arrow points to the control knob. Push it inward as you would to turn the machine "off." You can turn the push/pull knob counter-clockwise and it will unscrew from the timer shaft (red arrow). Pull the round indicator plate behind it off, too.