Page 213 (of the PDF) of the
Winnebago Parts Catalog lists the Owner's Manual for the 1999 Ultimate Freedom as "054185-K6-000 1999 Ultimate Freedom". You should be able to order a copy from your local dealer or
Lichtsinn Motors .
If you have HWH hydraulic jacks and slide I would suspect that that system would also power the generator slide. I don't know where it would be located on your coach, but on my 2005 Vectra the HWH system is under the front entry steps (the top two steps hinge up for access after the nut under the center of the step lip is removed).