treemuncher
Senior Member
I worked a job many years ago where my PC200lc6 was the smallest piece on the project. Lots of 40 ton 6x6 trucks, double engine scrapers and big hoes. It was a landfill expansion between Louisville and Cincinnati. When they would shoot a charge, they had all of the equipment parked and shut off and suggested that I do the same with mine.Pete, do you guys do anything special with the equipment when you blast? Long ago when I worked a coal strip mine, at blasting time all equipment was parked on level ground, engines off, park brakes released. Something about shock loads thru drivelines...
It was explained to me that Cat engineers had determined that the shock wave from the blast, travelling through the ground and into the frame of the equipment had, at times, cause the driveshafts of the engines to snap in half while running during a blast. This was most likely with the largest of engines but it was standard protocol to shut everything down for the shot. It also gave me time to watch the process. I do remember hiding behind/under one of those big dumps when a miscalculated shot blew material several hundred feet into the air and blew rocks very close to our location.