I found this article for you. Not sure if it's much help.....
[p align="left"][font size="-1"]The agitator is fastened to the agitator shaft and its movement is driven either by splines or a simple clutch assembly. The splines are usually plastic or rubber nubs on a cylinder that fits over the agitator shaft. If the nubs wear down, the shaft will not turn properly or it will turn weakly. If the agitator is moving in only one direction, the likely cause is the clutch assembly. The clutch has dogs that depress and pop up with each turn. If those dogs are worn, they will not engage properly and the agitator will turn only in one direction.[/font][/p] [font size="-1"]Beneath the cap some agitators are secured in place by a bolt. Use a socket wrench with an extension to remove that bolt. Some Maytags may have a screw near to the bottom of the agitator post that must be removed. Now try to lift the agitator straight up, possibly with a little back and forth rocking motion. Use caution when pulling, the agitator may come loose suddenly and hit you in the face or send you flying backward.
[/font][/p][font size="-1"]http://www.acmehowto.com/howto/appliance/washer/check/agitator.php[/font][/p][font size="-1"]
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