where to hook in air force one regulated air

[drivfour]

where to hook in air force one regulated air- looked on Demco site for specifics for Prevost but not clear. Can someone tell me exactly where to get the regulated supply that the air force one requires? Thanks

[Gil_J]

The control air (small hose) on any of the rear brake R-12 relay valves. It will be teed and go to the R-12 that comes with AF-1. Supply air to AF1 can come from the converter tap in or near the passenger side bay behind the tag.

[drivfour]

great- thanks for the quick reply.

[drivfour]

sorry to ask so many questions - air force one kit came with 3/8 male thread to 1/4 or a 3/8,/3/8, 1/4 tee with push ons. I have attached a picture of the tag r12 that feeds directly to the brake chamber. I am thinking I can use the plugged #2 port as the control air and the inlet, green hose, with the other 5/8, 5/8, 1/4 tee supplied. inlet to the r12 is hard to see but on lower right hand side of the r12 valve.
I looked at the drive brake valves but quickly got confused as there are numerous valves and interconnection. looking at the maintenance manual did not help.IMG_20190920_153936.jpg

[Gil_J]

Tee the 1/4" control line on the top that looks like it's going to the inversion valve.