I have received conflicking information about the calibration frequency of a overspeed tripper assy for a AS\RS monorail aisle crane. We have our units set to be calbrated at 1 year intervals. The issue that I've run into is when does the time start for the tripper. I have been told from...
I presently work in a facility that has automated cranes. The cranes are powered through a 4 wire 480 VAC overhead power rail that is 80 feet about the power distribution enclosure. My question is; is a local disconnect required at the maintenance platform where repairs are preformed for the...
