Thanks to Owner-Manuals.com! This manual was exactly what I needed. As Amana was purchased by Maytag and later by Whirlpool, there was no way to receive it from their websites. I was lucky to find this resource.
A comprehensive Operating and Service Manual. All schematics are complete and easy to read. The PCB drawings and complete parts list are very helpful. I would definitely recommend this manual.
Text excerpt from page 5 (click to view)
02 Yacht Boy 10, GB
POWER SUPPLY _______________________________________
1 Open the battery compartment by pressing the marking and opening the lid. 2 Take out the used batteries by pulling the first one out with your index finger. Then take out the second battery. 3 When inserting the new batteries (2 x 1.5 V, type Mignon LR6/AM6/AA), observe the correct polarity (see the illustration). Notes: Take out the batteries when you know that the device will not be used for a long period of time. The manufacturer accepts no liability for damage resulting from used batteries. Environmental note: Batteries, including those which contain no heavy metal, may not be disposed of with household waste. Please dispose of used batteries in an environmentally sound manner. Find out about the legal regulations which apply in your area.