Hello, my name is Matt and I'm on my second gas operated T30 and the Kohler engine is about to go on this one too. I'm considering mounting the 2475 pump under my truck and running it off of a PTO. However, I cant seem to find any specs which tell me the recommended RPM the pump should operate at nor can I find a spec on the torque required to run it, (I'll be driving it directly from the crank shaft, not from the belt pulley). Can you help?

Ingersol Rand compressors are driven by a variety of motors and gas engines. They set the rpm of the pump based on the required cfm /psi output required by the customer and power source. Your compressor has aprox 12- 15 hp gas engine that develops full power at about 3600 rpm of the engine. The pump will most likely be turning about 1000 rpm. Easy to check, just mark both pulleys and count the number of turns of the engine pulley compared to the pump. Pump specifications can be found at www.grainger.com. You will find that most ingersol pumps turn from 650-1200 rpm for max output. You will max pump life if you are able to keep rpms low (600 - 1000 turns). The pump will not lubricate properly if you turn too fast. The compressor needs between 5 and 15 hp depending on the cut-out pressure. Full hp is required as the pump neers 175psi. Good luck with your project.