On my return from Alaska last year my air compressor on my Cummins ISC 350 blew resulting in total loss of steering (the power steering pump runs off of the compressor). I could not physically move the steering wheel which caused a lot of excitement since I was traveling at 65mph at the time. Fortunately the steering was locked in the straight ahead position, the road was straight and there were no vehicles in my path. I did make it to the edge of the road by the time I stopped but I don't know if it was because of my efforts or the crown of the road. I shudder to think what might have happened at anytime over the previous month traveling the Canadian Rockies and Alaska.
The air compressor is lubricated by engine oil. The 3 inch hole in the case resulted in a near total loss of engine oil before I shut it down. Fortunately there was no engine damage and thanks to the efforts of Coachnet and Cummins of Lloydminster, AB Canada I was on the road in 2 days. Prior to my trip to Alaska I installed a Blue Ox TruCenter Steering control. Over the many years that I have driven vehicles i occasionally lost power steering but was able to control the vehicle.
My questions are: Does it seem reasonable that I had absolutely no steering control as a result of no power steering?
Should further checks be made on the steering components?