Machine does not want to agitate but spins fine

Washer Repair
1

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Brand: Maytag washing machine
Model Number: A8520
Main Symptom: Machine does not want to agitate but spins fine.
What happens & when: If one rotates the pulley in the agitate direction it is very reluctant but with force will move. Once moved it will do a load of laundry before seizing again. I have drained the orbital transmission and all parts look good. The input shaft from the pulley moves freely. The only part that does not move freely is the agitation shaft. I have bought Whirlpool WP6-0A57420 Washer Agitator Seal Assembly Part as that is the only place I can see that would cause the agitator shaft to bind. I have also removed the spring clip on top of the metal washer on top of the agitator seal. My question is how does one remove the old seal from the machine? I have looked for videos. So far I have not found any videos for this vintage Maytag covering this job.

Error Code (if any):None
Parts or tests already tried:
Photos / video link:

2

Generally, replacing the tub stem seal kit is the best approach when replacing the agitator seal, since it addresses the complete sealing surface and helps prevent the chance of any leaks.

This video https://www.youtube.com/watch?v=thX1aqNXsYk can be used as a general reference for accessing the seal. Once you have access to it:

  1. Use a flat-blade screwdriver or similar tool to carefully pry the old agitator seal out.

  2. Thoroughly clean the sealing surface and surrounding area to remove any residue, corrosion, or debris.

  3. Press the new seal evenly into place, making sure it is fully seated.

Taking the time to clean the area well before installing the new seal will help ensure a proper seal and maximize the life of the repair