Don't be too hard on Airstream Alan. When your MH was made, the 8088 processor was the big dog (green screen extra)! Back in 1982, the IBM typewriter was still king of the hill. That was the advent of the Apple II, Commodore 64, and TI 99/4A! Dot matrix printers did not have a letter quality mode. Remember NLQ? 9 pin print heads? The advent of PC, word processors, and laser printers really has improved the quality of publications.
Still, the meat is lacking from the manuals! Pretty basic stuff. Of course the units were new and the owners were not crawling all over them fixing things like we do. They just enjoyed them!