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 17 (click to view)
Cleaning the filters
The drain filter
A clean filter is important for correct functioning of the washing machine, and it should therefore be cleaned regularly. Small objects left in the pockets and yarn ist retained here.
Unscrew the filter completely turning it anticlockwise. Remove the filter and clean it under a fast running tap. Replace the filter turning now clockwise and tighten it. Attention Never remove the unloading filter while the washing machine is operating. Wait, always, till the washing program is over and there is NO WATER IN THE BARREL. When you replace the unloading filter in its place, make sure that it is correctly positioned and tight, in order to avoid water leakage or that children may take it off.
The water inlet hose filter
If it takes longer to fill up the washing machine it is time to check the water inlet hose filter it may be clogged. Turn off the water tap. Unscrew the fixing nut of the inlet hose. Remove the filter from the electrovalve and clean it with a hard bristle brush and replace it. Screw on the nut thoroughfully.