I know this is too late to help, as I didn't log onto the thread until this evening. But the guys are correct in that as long as the your road club and/or tow company knows the size of your rig, they should send a large enough truck, which will have an experienced driver. The driver will connect a line from his truck to your remote air outlet, and can pressurize your system that way for towing.
When our present coach had to be towed in 2007, the driver had a problem removing the driveline. I called Loren in Bend at BCS, and gave the cell phone to the driver under the coach (in the rain). Loren talked him through it. No problem. Keep that in mind for future situations like this. The personnel in Bend are awesome.
Also, I got a great deal of assistance from CoachNet, free at the time from Monaco. We finally let our 30 year AAA membership expire this year in favor of joining CoachNet, which offered more and cost less. They not only call you a tow, they can put a technician on the line to help you diagnose things, and possibly talk you through a repair yourself, or at least help you fully understand what you are up against. If you aren't already a member, I highly recommend that you consider it, Larry, esp. after this experience
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When our rig was brand new in Oct. 2006, we were stopped for hours for an accident on I-80 west of Rawlins, WY, when a storm we were trying to outrun caught up with us. By the time we got to Rawlins there was a foot of snow and blizzard conditions, all subzero. What a nightmare for greenhorns to large diesel rigs. So we sympathize with your situation. Be sure to tell us how things turn out for you.
-Joel