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 14 (click to view)
GENERAL CLEANING CHART
BE SURE ALL PARTS AFTER CLEANING OF THE COOKTOP ARE COOL BEFORE CLEANING BE SURE ALL PARTS ARE REPLACED CORRECTLY
Control knobs
Mild detergent & water.
To remove knobs, for cleaning, gently pull forward. Wash in mild detergent and water. Do not use abrasive cleaning agents. They will scratch finish and remove markings. Rinse, dry and replace. Turn each element ON to see if knobs have been replaced correctly.
Glass finish - cooktop (see page 8 for cleaning instructions for smoothtop cooktop.)
Soap & water. Paste of baking soda & water, Window cleaning fluid or ammonia,
Wash with cloth wrung out in soapy water. Remove stubborn soil with paste of baking soda and water. Do not use abrasive materials such as scouring pads, steel wool or powdered cleaning agents. They will damage glass. Rinse with clear water and dry.
Porcelain finish cooktop
Mild soap & water.
Porcelain enamel is glass fused on metal. It may crack or chip with misuse. Clean with soap and water when parts are cool. All spillovers, especially acid spillovers, should be wiped up immediately with a dry cloth. When surface is cool, clean with warm soapy water. NEVER WIPE OFF A WARM OR HOT ENAMEL SURFACE WITH A DAMP CLOTH. THIS MAY CAUSE CRACKING AND CHIPPING. Never use abrasive or caustic cleaning agents on porcelain. (Note: Some coil element cooktops are designed as a lift-up cooktop for easy cleaning.)
Plastic finishes
Soap & water.
Never use abrasive or caustic cleaning agents on plastic finish.