Welcome to the Forum and to the world of Vintage Airstreaming.
The Safari that you have will make for many wonderful memories as you get acquainted with its systems. There wasn't a service manual for Airstream products until the 1970s. Owner's manuals were provided with each Airstream sold beginning in 1964
- - these manuals are quite general in regard to the various systems in the trailer, but will give you a good start to understanding. Copies of the original owner's manual can be obtained from:
The first owners manuals were published in 1964. Prior to that, the owner received a brown envelope containing parts lists and other helpful information on the accessories in his trailer. A service manual with instructions for performing service operations did not exist until 1972. You can get photocopies of owners manual (1964+) and service manuals (1972-1986) from:
Helen Davis Secretarial Services
PO Box 484 Sidney, OH 45365
Prices are about $33 and $70 respectively. After 1986 the Owners Manuals included available service information.
*The above information is quoted from the Vintage Airstream Club web site FAQ section.
Once you know the manufacturer, model name and/or number for the appliances in the coach, someone on the Forum will likely be able to point you in the direction of copies of the necessary manuals for the individual appliances.
Good luck with your Safari!