38FF
Here is a diagram I had created showing how American Fire Apparatus had done the engine bay piping/connections for the front mount Barton on my truck:

Barton Front Pump Engine Bay Piping Diagram

I also have a lot of pictures of the actual connections here:

'54 GMC 450 Barton Front Pump Album


Bob
1953 GMC 450 Fire Truck
1915 Standard Eigth Roadster
1912 EMF Model 30
1912 Flanders Model 20