In preparation for the Big Day™ (when the MMU/LMU swap-out would take place), I ran down to the local Home Depot to see if I could find a 3mm allen key (hex wrench).
The original LMUs are fastened to the frame of the solar modules with hex head bolts. Recalling how much time it took to perform the original, manual installation with an L-shaped hex wrench, I came up with a brilliant idea (if I say so myself): "I'll get a new 3mm hex wrench and cut off the end of the 'L' so that I can put it into my clutched drill and let a little electricity remove the old bolts."
I already had a very nice metric hex wrench set (a gift from my oldest son) but I didn't want to ruin the set by destroying one of its members. So it was off to the old Home Depot. Unfortunately, I could only find hex wrenches in sets (I miss the old hardware store where one could get just what one needed!) — and it wasn't worth running all over town in the vain hope of finding a single hex wrench of the desired size — so now I have two sets of metric hex wrenches.
But at least I have my drill all ready to go and I can look forward to a rapid disassembly of the modules.
There was no reason to delay enabling the new Tigo MMU and gateway so I temporarily placed the new MMU in our laundry room (which has a convenient ethernet connection), temporarily installed the gateway looking out the laundry room window towards the module array, connected the MMU to the ethernet, powered things up, and insured that there was an Internet connection.
Of course, I didn't not expect the panels to report anything yet because the LMUs had not yet been replaced.
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