Welcome artgal to the Newmar forum & irv2.
Here is a owners manual for a 99 MA
while its not your year the general information will apply only the options may be different.
Be patient it takes a while to upload.
Here is a other link
for more info related to Newmar coach's.
Here is a link to the Ford forum
which has links to manuals you may need for your 460 Ford.
The link to RV Systems
under my signature will get you to Generator links for that info also recalls for your refrigerator if its covered.