Sorry the install has been completed.....I haven't received the Dakota gauge yet,next week I think they said. I'll have to go back in and tee off somewhere and feed the gauge. I'm not exactly sure but I'll figure it out.
For those that have Legend Air without a gauge- will the compressor only pump the shocks up to a certain pressure and stop? Can I damage the shocks by pumping too much air in them with the compressor that came with the system?
No, you can't damage them with the compressor that comes with the system...but you can make it ride like crap by pumping them up too much. I never had a gauge on either of the bikes I had the Legends on. While it would be "nice" to have it just for a reference point, you soon discover the "sweet spot" for pressure amounts depending on load and road conditions. The beauty of the Legends is their infinite adjustment on the fly. I could tell where they were with regards to height by the angle of view over the windshield.
On the pre '09 frame, the compressor/solenoid assembly mounted underneath the battery box. On the new frame it mounts between the frame members just behind the oil pan drain plug. There's maybe 1/2" to play with. You can get an open end wrench on the plug, but as Jerry (ultrafxr) mentioned, it makes a bit of a mess if you don't drop the compressor/solenoid assembly down. There are just two socket head bolts to loosen in order to drop it and get it out of the way...just leave yourself a bit of slack in both the wiring and tubing and it's not a problem.
T'ing the gauge in won't be any problem...use one of the Y fittings like comes with the system and just tap in. I'd probably do it underneath the seat and run the tubing beneath the tank and into the bottom of the fairing where the switch nacelle wires feed.
Just make sure you get nice, clean, 90 degree cuts on the tubing using the cutting tool provided or a sharp utility knife, ensure no tubing will be next to hot things and that it is not subject to chaffing. It's a nice system and actually rides a bit better with a load on it...the shocks like weight. You'll soon figure out where they need to be under different situations. Keep a few feet of extra tubing rolled up and stick it in the bottom of the lower fairing glove box or bottom of the saddlebag "just in case". Not just any place carries the 5/32 tubing though I have been told that big trucks use the same size for some of their air lines. But you won't find it at Autozone or such places. The Harley tubing will work, but it's a "softer" tubing.