Thank you for the prompt response and advice.
Yes, I did look at it. As I am not mechanically minded I had not attempted to remove or dismantle the dishwasher because I did not want to make it worse.
As an aged and disabled veteran, I can not afford to pay for a plumber to come for a home repair. I thought it best to seek advice from people I trust to give technical assistance and help in lieu of stumbling in the dark.
With your instructions, I can confidently replace the seals.
PeterB
February 2014