Today was going way too smoothly at work. I made 3 offloads with the tender truck and no issues, and heard of no issues with any coworkers. Then I made my last run of the day.........you guessed it....problems. Made it 20 miles into my 50 mile delivery, and air warning comes on. I'm down to 65psi, so pull off the Western Parkway. I shut off the truck, crawl all under to listen for leaks, and hear none. Restart the truck and still can't hear a leak. I knew it had to be at the pump, as I was holding 60psi fine. Restart the truck again & start feeling for air, which is kinda hard with that big radiator fan blowing air like mad. Then I found it was the main outlet at the pump. A 5/8" air line leaking at the fitting. Not a tool in the truck, so had to think. Found nylon string where the road crew used it for aligning guard rails or something. I tied off the air line in 2 directions, then pulled these 2 sets of strings together for a bowstring tight fit. That pulled the angled line hard down into the fitting. I had called my boss, but he hadn't left yet, so I told him to stay put, that I had it rigged. Kept a full 120psi the rest of the trip. I offloaded, then went back to the store where I checked the line. Turns out wrenches wouldn't have helped, as the line was never installed correctly. The ferrule was just at the end, so it squeezed the very end of the line down to 1/2" and was lucky it held onto it this long. The ferrule should be at least 1/4" past the end of the air line. Gotta stop by a parts house in the morning for some ferrules. Quick fix once I have one. 14 hours non-stop today.
Below is a pic of my McGyver string apparatus.