Well, good evening folks! First, I would like to extend my thanks to all who contributed to my inquiries about my 682 wiring issue.
The good news is that the 682 is back in full functional mode. And more good news, nothing was damaged or fried due to the error. And lastly, the fix only ran about $15. As Gene Wilder exclaimed in Young Frankenstein, "It's ALIVE!"
After much due diligence (tracing wires, isolating and testing/ checking components, etc.), I found the problem. I highly suspect that the mischievous shop gremlins were hard at work sometime in the past - I couldn't possibly hade made an error
! It wasn't an error in following Roland's schematic wiring diagram - just an incorrect part, partially miswired.
It turned out that 'somehow' an incorrect relay had found its way into the circuitry (it was a dual #87 contact type - both N.O. contacts -oops). So a quick trip to Advance Auto to get the right one (FYI, it is a 'BWD' # R3074P - the store was a lot closer than the NAPA store that stocked the one Roland had referenced as a replacement). After a temporary reconnection of everything, the M 18 fired right off after sitting dormant for so long (5+ years - what a relief. No leaks, no fireworks, no hiccups.
So, now it's on to doing the final reassembly and a few more minor finishing touches. Then I can move on to rehabilitating the mule drive and the snow blade - it looks like it may be seeing a fair amount of use here in the mountains if the snow contnues.
Hopefully, I can/ will get some 'presentation' photos together soon.
Thanks again!
Steve