Mea culpa, mea maxima culpa!
Mystery solved, I think. I'm sad to report that I KILLED THE CRANE BRAIN!
From the Crane XR700/XR3000 instruction sheet:
"The XR700 requires ballast resistance to limit coil current."
Last year when I "upgraded" the coil to one with an internal ballast resistor, I unwittingly started pumping too much current to the Crain electronics box. So, before going back to an electronic system (i.e. hooking up Jeff's Allison XR700), I need to either go back to a coil with external ballast, or put a 1.6-ohm power resistor in series with the power lead from the coil to the brain box.
Boy do I feel stupid.
Mystery solved, I think. I'm sad to report that I KILLED THE CRANE BRAIN!
From the Crane XR700/XR3000 instruction sheet:
"The XR700 requires ballast resistance to limit coil current."
Last year when I "upgraded" the coil to one with an internal ballast resistor, I unwittingly started pumping too much current to the Crain electronics box. So, before going back to an electronic system (i.e. hooking up Jeff's Allison XR700), I need to either go back to a coil with external ballast, or put a 1.6-ohm power resistor in series with the power lead from the coil to the brain box.
Boy do I feel stupid.
Last edited:
