Scenario:
I flew through a little bit of rain en route TX to Nebraska with occasional turbulence. At the destination airport, the Cozy was parked on its nose in a transient hangar, raised it the nose, moved out of the hangar to load on the ramp. Put the nose down to make it easier for my wife to get in. When the gear down switch was moved, it would extend briefly and when the wheel touched the ground it stopped. The LED by the switch stays lit. It would retract when switched to "gear up". Tried again to lower it, same thing even with me assisting. Wife climbed out and with two lifting on the canard, it raised all the way up when the switch was moved to "gear down". Initially I thought a low battery was contributing to the issue but the engine cranked right up.
Since the LED was staying lit, it indicates that at least part of the system had power. After starting the engine, the system is worked normally again.
I think this particular revision doesn't have high current going through the limit microswitches but will need to verify. The schematic has a note that "colors may not match". I think the system had at least two previous owners and the wiring was a rats nest when I got it. Wires were cut and spliced together. The AEX P2 plug had one jumper "to nowhere" and a power wire. It looks like pin 5 should jumper to 6. With the plug off, the system would not move the gear up, but would move it down. This opened what would have been the pin 5 to 6 connection.
After parking in my hangar, I've pulled the connectors apart and am not yet finding evidence of a high resistance connections in the plugs.
I do have one of Marc's new actuators and parts minus electronics. Also have one of Bob Bittner's boards he sold me at RR a few years ago. I'll work on some other squawks an mull over what to do about this.
-Update 7/17/24 - I found a bare wire splice (3 grounds) that was under a wiring label next to the P1 Molex connector. I soldered and taped the connection
No comments:
Post a Comment